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Hypertension in Latin America: Current perspectives on trends and characteristics

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The region of Latin America, which includes Central America, the Caribbean and South America, is one that is rapidly developing. Signified by socio-economic growth, transition and development over the last few decades, living standards in countries like Brazil and Mexico have improved dramatically, including improvements in education and health care. An important marker of socio-economic change has been the epidemiological shift in disease burden. Cardiovascular disease is now the leading cause of death in Latin America, and the drop in prevalence of infectious diseases has been accompanied by a rise in non-communicable diseases. Hypertension is the major risk factor driving the cardiovascular disease continuum. In this article we aim to discuss the epidemiological and management trends and patterns in hypertension that may be specific or more common to Latin-American populations - what we term 'Latin American characteristics' of hypertension - via a review of the recent literature. Recognizing that there may be a specific profile of hypertension for Latin-American patients may help to improve their treatment, with the ultimate goal to reduce their cardiovascular risk. We focus somewhat on the countries of Brazil, Mexico and Venezuela, the experience of which may reflect other Latin American countries that currently have less published data regarding epidemiology and management practices.
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Hipertensión
ISSN: 1889-1837
Hypertension in Latin America:
Current perspectives
on trends and characteristics
L.M. Ruilope, A.C.P. Chagas, A.A. Brandão, R. Gómez-Berroterán,
J.J.A. Alcalá, J.V. Paris, J.J.O. Cerda
Órgano oficial de la Sociedad Española de Hipertensión-Liga Española para la Lucha contra la Hipertensión
Arterial, de la Sociedad Argentina de Hipertensión Arterial y de la Latin American Society of Hypertension
www.elsevier.es/hipertension
Indexada en:
Medline en 2015
y riesgo vascular
Latin American Society of Hypertension
Reprinted from Hipertens Riesgo Vasc. 2017;34:50-56
Hipertens Riesgo Vasc. 2017;34(1):50---56
www.elsevier.es/hipertension
SPECIAL ARTICLE
Hypertension in Latin America: Current perspectives
on trends and characteristics
L.M. Ruilopea,b,, A.C.P. Chagas c, A.A. Brandãod, R. Gómez-Berroteráne, J.J.A. Alcaláf,
J.V. Parisg, J.J.O. Cerdah
a‘‘Cátedra UAM de Epidemiología y Control del Riesgo Cardiovascular’’, Universidad Autónoma de Madrid, Spain
bHypertension Unit, Institute of Research i+12: Hypertension and Cardiovascular Risk Group, Hospital Universitario 12
de Octubre & Department of Preventive Medicine and Public Health Universidad Autónoma de Madrid, Madrid, Spain
cChief Cardiology Division, ABC Medical School, Av. Principe de Gales, 821, 09060-870 Santo André, SP, Brazil
dDepartment of Cardiology --- Hypertension Unit, State University of Rio de Janeiro, Rio de Janeiro, Brazil
eSocial Security, Hospital Dr. Domingo Luciani, Rio de Janeiro av. Municipio Sucre, Caracas 1073, Venezuela
f‘‘Hospital Dr. Domingo Luciani’’ --- Institute Venezuelan of the Safe Social (IVSS), Caracas, Venezuela
gInstituto Nacional de Cardiologia ‘‘Ignacio Chávez’’, Mexico City, Mexico
hResearch and Education General Director, Grupo Angeles Servicios de Salud, Mexico City, Mexico
Received 2 November 2016; accepted 28 November 2016
Available online 20 December 2016
KEYWORDS
Hypertension;
Latin America;
Brazil;
Mexico;
Venezuela;
Cardiovascular
disease;
Blood pressure
control;
Lifestyle;
Obesity
Abstract The region of Latin America, which includes Central America, the Caribbean and
South America, is one that is rapidly developing. Signified by socio-economic growth, transi-
tion and development over the last few decades, living standards in countries like Brazil and
Mexico have improved dramatically, including improvements in education and health care. An
important marker of socio-economic change has been the epidemiological shift in disease bur-
den. Cardiovascular disease is now the leading cause of death in Latin America, and the drop
in prevalence of infectious diseases has been accompanied by a rise in non-communicable dis-
eases. Hypertension is the major risk factor driving the cardiovascular disease continuum. In this
article we aim to discuss the epidemiological and management trends and patterns in hyper-
tension that may be specific or more common to Latin-American populations --- what we term
‘Latin American characteristics’ of hypertension --- via a review of the recent literature. Rec-
ognizing that there may be a specific profile of hypertension for Latin-American patients may
help to improve their treatment, with the ultimate goal to reduce their cardiovascular risk.
We focus somewhat on the countries of Brazil, Mexico and Venezuela, the experience of which
may reflect other Latin American countries that currently have less published data regarding
epidemiology and management practices.
© 2016 SEH-LELHA. Published by Elsevier Espa˜
na, S.L.U. All rights reserved.
Corresponding author.
E-mail address: ruilope@ad-hocbox.com (L.M. Ruilope).
http://dx.doi.org/10.1016/j.hipert.2016.11.005
1889-1837/© 2016 SEH-LELHA. Published by Elsevier Espa˜
na, S.L.U. All rights reserved.
Hypertension in Latin America 51
PALABRAS CLAVE
Hipertensión;
América Latina;
Brasil;
México;
Venezuela;
Enfermedad
cardiovascular;
Control de la tensión
arterial;
Estilo de vida;
Obesidad
Hipertensión en América Latina: perspectivas actuales de las tendencias
y características
Resumen La región de América Latina, que incluye Centroamérica, el Caribe y Sudamérica,
está atravesando una rápida evolución. Esto se refleja en el crecimiento socioeconómico, la
transición y el desarrollo durante las últimas décadas; las condiciones de vida en países como
Brasil o México han mejorado drásticamente, lo que incluye reformas educativas y sanitarias. Un
marcador importante de cambio socioeconómico ha sido el giro epidemiológico en la carga que
suponen las enfermedades. Los trastornos cardiovasculares son la principal causa de mortalidad
en América Latina, y la reducción en la prevalencia de enfermedades infecciosas se ha visto
acompa˜
nada de un aumento de las enfermedades no contagiosas. La hipertensión es el factor
de riesgo que lidera la continuidad de las enfermedades cardiovasculares. En este artículo
pretendemos analizar las tendencias y los patrones en materia de epidemiología y gestión de la
hipertensión que podrían ser específicos o más comunes en la población latinoamericana ---lo que
hemos llamado «características latinoamericanas»de la hipertensión--- por medio de una revisión
de la literatura reciente. Reconocer que podría existir un perfil específico de hipertensión
para los pacientes latinoamericanos podría mejorar su tratamiento, con el objetivo final de
reducir su riesgo cardiovascular. Nos centramos levemente en los países de Brasil, México y
Venezuela, cuyas experiencias podrían verse reflejadas en otros países de América Latina que
en la actualidad disponen de menos datos publicados en lo que respecta a las prácticas de
epidemiología y gestión.
© 2016 SEH-LELHA. Publicado por Elsevier Espa˜
na, S.L.U. Todos los derechos reservados.
Hypertension in Latin America: prevalence,
awareness and control rate
Hypertension is the most important risk factor contributing
to the burden of cardiovascular disease, the leading cause
of death in all Latin American countries.1,2 Up to 40% of the
adult Latin American population is estimated to be affected
by hypertension --- similar to that in developed countries ---
although there are considerable variations between ethnic
and racial groups, men and women, and different countries
within the region. For example, the Brazilian Longitudi-
nal Study of Adult Health (ELSA-Brasil) showed that the
adjusted prevalence of hypertension was highest amongst
Blacks (49.2%) compared with Whites (30.3%) and Browns
(38.2%).3Variations in hypertension prevalence within the
same country also exist, which may be partly explained
by regional differences in diet.4 --- 6 Like elsewhere, hyper-
tension increases with age in Latin America: data from
Mexico City showed a sharp increase in the prevalence of
treated hypertension from middle age (26% among 35---44
year olds) to elderly (59% among 75---84 year olds), with
this increase being significantly greater in women than in
men.7
Moreover, as in other parts of the world, the low rates
of awareness, treatment and control of hypertension in
Latin America reveal the difficulty and inadequacy in man-
aging this chronic disease on a population level.8---10 In a
recent cross-sectional survey of around 7500 adults from
four cities across Argentina, Chile and Uruguay, around
42.5% had hypertension and 32.5% had pre-hypertension.11
Of this population, around 63.0% were aware of their dis-
ease, 48.7% were taking prescribed medications to lower
their blood pressure (BP), but only 21.1% of all hypertensive
patients, and 43.3% of treated hypertensive patients, had
their BP controlled to target.11 Similarly, the ELSA-Brasil
study found a high proportion of uncontrolled hypertension
among its cohort of more than 15,000 subjects recruited
from universities and research institutions.12 In total, 34% of
ELSA-Brasil participants knew they had hypertension and 29%
were taking BP medication; however, among those receiving
treatment, 31% did not have controlled BP. Perhaps not sur-
prisingly, controlled BP was more frequent in those with a
higher education level (postgraduate).3
There are many reasons for inadequate BP control,
including poor treatment adherence, physician’s inertia,
patient’s baseline cardiovascular risk, and poor adherence
to guidelines by the treating physician. Regarding the last
point, physicians’ criteria for diagnosing and determining
high BP may be highly subjective, based on a ‘personal
appreciation’, without much heed to criteria specified in
regional and international management guidelines. In a
recently published study by Ragot et al.,13 the rates of con-
trolled hypertension were evaluated in 2185 hypertensive
adults across five countries, including Venezuela. Part of the
study compared BP control rates, as determined by physi-
cians’ perception, with BP control rates determined using
the 2007 European Society of Hypertension/European Soci-
ety of Cardiology (ESH/ESC) guideline criteria. There was
a marked divergence between physicians’ assessment and
that based on the guidelines, with doctors grossly over-
estimating the BP control rate: according to physicians,
72% of patients had controlled hypertension when, actu-
ally, according to ESH/ESC criteria, only 40% had controlled
BP.13 The study found that other important factors lead-
ing to inadequate BP control were the presence of high or
very high cardiovascular risk; high salt intake; treatment
52 L.M. Ruilope et al.
non-adherence; lack of understanding of the treatment’s
importance; comorbidity; and depression.13
Clinical relevance of BP variability in Latin
American populations
Furthermore, in today’s context, the optimal control of a
person’s BP should necessarily involve some attention to
BP variability, particularly in at-risk individuals such as the
elderly. This rationale is based on accumulating evidence
which indicates that some BP variability parameters have
significant prognostic value for cardiovascular and cere-
brovascular outcomes.14,15 Although these data have been
derived from post hoc analyses and observational studies,
and evidence is sorely needed from prospective, random-
ized, controlled trials, they nevertheless suggest that more
can be learned from looking beyond 24-h mean BP values
alone.
Short-term (within 24 h) BP variability includes excessive
morning BP surge and non-dipping or excessive dipping of
night-time BP, while long-term BP variability includes visit-
to-visit BP variability. In the seminal study by Kario et al.,16
an excessive surge in morning BP was significantly associ-
ated with an increased risk of stroke in elderly Japanese
patients with hypertension. Subsequently, this correlation
between exaggerated morning BP surge and stroke and mor-
tality has been consistently demonstrated,17 including in a
recent retrospective study of Brazilian patients.18 In this
study, analysis of ambulatory BP monitoring (ABPM) data
from Brazilian hypertensive patients attending a single cen-
ter in São Paulo showed that those with an exaggerated
morning BP surge (morning systolic BP surge 41 mmHg) had
a significant --- almost threefold --- increase in the risk of
death compared with patients who had a normal morning BP
surge (<41 mmHg).18 Patients who had exaggerated morning
systolic BP surge were more likely to be older, had a higher
daytime systolic BP as well as higher systolic and diastolic
BP dipping, and a lower night-time diastolic BP.
In the first reported study of its kind in Latin America,
researchers in Argentina retrospectively evaluated the dif-
ference in morning and evening BP (MEdiff), as measured
by home BP monitoring (HBPM), in hypertensive outpatients
living in Buenos Aires, and correlated MEdiff with indepen-
dent determinants.19 Older age, smoking, total cholesterol
and use of calcium channel blockers were found to be inde-
pendent determinants of the home-based MEdiff. Moreover,
looking at the MEdiff BP profile, home diastolic BP was found
to be significantly higher in the morning than in the evening
for all patients apart from smokers. After excluding smok-
ers from the cohort for further analysis, both home systolic
BP and diastolic BP were significantly higher in the morning
than in the evening. This result was interesting in that it
aligned with data obtained from Northeast Asian hyperten-
sive populations, but not with European study findings.
Though limited in scope, these regional data highlight
that BP variability may be an important factor to consider in
the management of hypertension in Latin American patients
as a means to improve cardiovascular and stroke outcomes.
Undoubtedly, more extensive but selective use of HBPM
and ABPM --- i.e., facilitating the mapping of an individual’s
BP --- would help to enhance the rate and accuracy of BP
diagnosis and control, but the major drawback currently
lies in the limited availability of these devices. Neverthe-
less, the uptake of ABPM in Brazilian clinical practice has
steadily increased since the Brazilian Societies of Cardiol-
ogy, Hypertension and Nephrology first published guidelines
on its use in 1993, and specific training on ABPM was provided
via professional courses across the country.20
Consequences of hypertension in Latin
America: cardiovascular disease and stroke
In Venezuela, data from the 2012 Annual Mortality Report
published by the Ministry of Health showed that cardiac
diseases accounted for 30,000 deaths per year; can-
cer accounted for 22,000 deaths per year, and stroke,
11,000 deaths per year. Thus, in Venezuela, 41,000 deaths
per year, or an average of 112 deaths per day, can
be attributed to cardiovascular disease and stroke. The
recently updated Panorama of Mortality from Cardiovascu-
lar Disease in Brazil, a descriptive epidemiological study that
analyzed data from the 437 health regions of Brazil, reported
on the trends in age-adjusted rates of total cardiovascular
mortality in adults from 2003 to 2012. Cardiovascular dis-
ease remained the leading cause of death: in 2012, it was
responsible for 31% of all deaths in Brazil, with ischemic
heart disease (IHD) and cerebrovascular diseases being the
leading causes, accounting for 31% and 30% of these deaths,
respectively. A similar picture can be found across Latin
America, particularly in those countries with burgeoning
economies. Furthermore, unlike in developed nations such
as the USA, where cardiovascular mortality has declined
through consistent efforts to reduce hypertension and other
risk factors, cardiovascular mortality in Latin America is
rising.21
A comparison of data from two longitudinal cohort stud-
ies --- the Bambui Cohort Study of Ageing (Brazil) and the
English Longitudinal Study of Ageing (ELSA) --- exemplify the
fact that mortality risk associated with hypertension in Latin
America significantly exceeds that in developed nations.22 In
this analysis, the 6-year mortality risk attributable to smok-
ing, hypertension and diabetes was compared between more
than 3000 English and Brazilian patients with hypertension.
One of the key findings was that the mortality rates and
hazard ratios for mortality by hypertension in the Brazilian
cohort were significantly higher than in the English cohort,
and this difference was most pronounced in patients older
than 75 years. Since the Bambui study purposefully recruited
individuals with low income and level of schooling --- a demo-
graphic very different to that in ELSA --- the comparison
of these two cohorts served also to highlight the impact
of social or economic differences on hypertension and its
outcomes.
In terms of stroke, it is encouraging that stroke mortality
in Brazil has improved in recent years. In 2011, data from
the Brazilian Ministry of Health showed for the first time
that the number of deaths due to coronary heart disease
(CHD) exceeded that from stroke. Nevertheless, stroke is a
neglected disease in Brazil and it cannot be overstated that
the risk of premature death due to stroke in Brazil remains
one of the highest in the world.23 According to data from the
2013 Global Burden Disease report,24 the years of life lost
Hypertension in Latin America 53
(YLL) due to premature death from CHD in Brazil was similar
to that of other countries; however, the YLL from cere-
brovascular disease in Brazil was significantly higher than
the mean of most other countries (Fig. 1).24 Ultimately, the
suboptimal control of risk factors for stroke, beginning with
hypertension, represents a huge missed opportunity for pri-
mary prevention which, in Brazil, is tremendously felt in
terms of morbidity, mortality and financial loss.25
Hypertension and obesity are common
comorbid risk factors for cardiovascular
disease in Latin American populations
A recent review of literature from Latin American countries
(Argentina, Bolivia, Brazil, Chile, Costa Rica, Colombia,
Cuba, Ecuador, El Salvador, Honduras, Guatemala, Mexico,
Nicaragua, Panama, Paraguay, Peru, Puerto Rico, Venezuela,
Uruguay and Dominican Republic; N=7,192,262; 45 eligi-
ble studies) found that the most frequent cardiovascular
risk factors in the region were, in order of most preva-
lent: arterial hypertension, overweight/obesity, diabetes
and smoking.26 Interestingly, the overall majority of car-
diovascular risk factors were significantly more prevalent
in women than in men; for the specific risk factors of
overweight/obesity, physical inactivity, smoking and alco-
hol consumption, however, there was no difference between
the sexes, underscoring the fact that detrimental lifestyle
factors are indiscriminately affecting the Latin American
population.
Part of the INTERHEART Latin American study evaluated
the risk factors contributing to a first acute myocardial
infarction (MI) in matched controls from Argentina, Brazil,
Colombia, Chile, Guatemala and Mexico.27 This showed that
abdominal obesity, abnormal lipids and smoking were asso-
ciated with the highest population-attributable risks (PARs)
of 48.5%, 40.8% and 38.4%, respectively (Table 1).27 Mean-
while, the more recent INTERSTROKE study determined
that ten potentially modifiable risk factors (hypertension,
physical inactivity, apolipoprotein (Apo)B/ApoA1 ratio, diet,
waist-to-hip ratio, psychosocial factors, smoking, cardiac
causes, alcohol consumption and type 2 diabetes) collec-
tively accounted for 90% of the PARs of stroke, regardless
of geographical region, ethnic group, sex and age, with
hypertension being the most dominant.28 There were, how-
ever, important regional variations in terms of the relative
impact of most individual risk factors for stroke, which
may partly explain the worldwide variations in frequency
and case-mix of stroke. The most important message from
INTERSTROKE was that stroke is a largely preventable dis-
ease: through the elimination of hypertension alone, stroke
cases would be almost halved (reduced by 48%); with phys-
ical activity alone, by 36%; and with a healthier diet alone,
by 19%.28
5000
4000
Higher than
the average
a
b
Lower than
the average
Average
Coronary heart disease
Higher than
the average
Years of life lost Years of life lost
Lower than
the average
Average
Stroke
3000
2000
1000
0
Russia
India
Indonesia
Saudi Arabia
Tur k ey
Brazil
Average
United States
Argentina
China
Mexico
South Africa
Germany
Canada
United Kingdom
Australia
Italy
France
South Korea
Japan
5000
4000
3000
2000
1000
0
Indonesia
Russia
China
India
South Africa
Brazil
Saudi Arabia
Average
Tur k ey
Argentina
South Korea
Mexico
Japan
United Kingdom
Germany
Italy
United States
Australia
France
Canada
Figure 1 Age-adjusted years of life lost (in thousands) for (a) CHD and (b) stroke among 19 selected countries in 2013.
Adapted from Ref. 24.
54 L.M. Ruilope et al.
Table 1 Comparison of Latin American (LA) INTERHEART population with INTERHEART-Rest of World (IH-ROW) population
excluding LA: risk factors associated with IHD.
Risk factor Controls (%) PAR (95% CI)
LA IH-ROW LA IH-ROW
ApoB/ApoA1 42.0 32 40.8 (30.3---52.2) 44.2 (41.3---47.1)
Smoking 48.1 48.1 38.4 (32.8---44.4) 35.3 (33.3---37.4)
Type 2 diabetes 9.5 7.2 12.9 (10.3---16.1) 12.2 (11.3---13.1)
Hypertension 29.1 20.8 32.9 (28.7---37.5) 22.0 (20.7---23.4)
Waist/hip ratio 48.6 31.2 48.5 (35.8---56.2) 30.2 (27.4---33.2)
Depression 28.9 15.8 4.7 (1.4---13.9) 8.4 (7.3---9.7)
Permanent stress 6.8 3.9 28.1 (18.5---40.3) 7.8 (4.6---13.1)
Regular exercise 22.0 18.9 28.0 (17.7---41.3) 24.8 (20.6---29.6)
Alcohol 19.4 11.9 3.2 (18 to 11.7) 16.3 (12.7---20.6)
Daily consumption of fruits and vegetables 84.3 83.7 6.9 (3.35---10.5) 4.1 (2.9---5.3)
All combined 88.1 (82.3---93.8) 85.1 (82.9---87.2)
ApoB/ApoA1, apolipoprotein (Apo)B/ApoA1 ratio; CI, confidence interval; IHD, ischemic heart disease; PAR, population-attributable risk.
Adapted from Ref. 27.
A closer look at obesity and physical inactivity
In Brazil, physical inactivity was found to account for
15% of all hospitalizations among patients with chronic
non-communicable diseases, including IHD and diabetes,
incurring annual costs exceeding US$730 million.29 Further-
more, not only has the prevalence of obesity increased
among Brazilian adults in recent years, but data indicate
that this is also happening in children.30 In a cross-sectional
study of two population samples in Rio de Janeiro, in which
the prevalence of obesity was compared between similar
cohorts in 1986/1987 and in 2016, comprising more than
5000 schoolchildren aged 10---15 years, the prevalence of
overweight/obesity levels was found to have almost dou-
bled, from 17% in 1986 to 32% in 2016, and the prevalence
of obesity trebled, from 6% to 18%.30 Central obesity was
present in 46% of the 2016 cohort, and 60% of these children
did not take part in any physical activity. Worryingly, the rise
in obesity rates was accompanied by an increased preva-
lence of isolated diastolic hypertension and systo-diastolic
hypertension compared with 30 years before. Although the
overall prevalence of hypertension declined in this period
(from 11% to 8%), the researchers speculated whether this
was an artifact of the different methods of BP measurement
used, i.e., reflecting the difference between the ausculta-
tory method used in 1986 and 1987, and the oscillometric
method used in 2016.
In Mexico, the National Health and Nutrition Survey com-
pared data from 2012 with that from 2006, which showed
a significant increase in the prevalence of physical inactiv-
ity among adults based on the World Health Organization
definition (less than 150 min per week of moderate physical
activity, or 75 min of vigorous activity, or their respective
combination).31 The increase in prevalence, from 13.4% in
2006 to 19.4% in 2012, represented an absolute increase
of 6%, or relative increase of 44%. Individuals older than
60 years and those in the highest socioeconomic tertile
were significantly more likely to be physically inactive, as
were those who were obese. It has been previously esti-
mated that physical inactivity may directly account for 6%
of all CHD cases and 8% of all type 2 diabetes cases in
Mexico.32
Possible ‘characteristics’ of hypertension
in Latin America
Thus, compared with other populations, Latin Americans
appear to have a predominance of the clustering of hyper-
tension with diabetes and lipid abnormalities --- often
referred to as the metabolic syndrome.33 The prevalence of
the metabolic syndrome in Latin America currently ranges
from 25% to 45% and it is increasing.33 Another observation
peculiar to Latin America is the high prevalence of arte-
rial hypertension in children, adolescents and adults with
nutritional stunting.33,34 Changes in the sympatho-adrenal
and renin---angiotensin systems have also been reported in
children small for their gestational age.35 This evidence
has led researchers to speculate whether environmental or
epigenetic factors underlie or contribute to the apparent
increased propensity and susceptibility of Latin Americans to
the metabolic syndrome, hypertension and diabetes.36 The
hypothesis is that poor nutritional status in early life, and
even in the fetal period, may have differential effects on
cardiovascular and metabolic diseases manifesting in later
life. The increased rates of hypertension, metabolic syn-
drome and type 2 diabetes observed in Latin America today
may be due to the discrepancy between the nutritional envi-
ronment during fetal and early life (‘fetal programming’),
and the adult environment, in which substantial lifestyle
changes have occurred due to socio-economic transition.33
Though controversial, these limited, preliminary available
data suggest that genes and environmental factors may
contribute to a profile or ‘characteristic’ of hypertension
that is particular to Latin American individuals, which warr-
ants further study. Moreover, improved early nutrition and
good eating habits sustained over the lifetime might par-
ticularly help to lower the risk of hypertension in Latin
Americans.
Hypertension in Latin America 55
Primary prevention of hypertension
and cardiovascular disease
Given that social and economic inequality in Latin America
greatly restricts an individual’s access to quality or indi-
vidualized health care, primary prevention has never been
more important as a key strategy for reducing the burden
of hypertension and cardiovascular disease. In this setting,
the media play an important role, as do frontline health-
care professionals, who are often the only source of reliable
medical advice on lifestyle and diet,37 and the first point
of healthcare contact, for many patients. Population-wide
public health campaigns have met with some success --- the
public policy against smoking in Brazil is one example38 ---
but they have been largely limited in terms of time and
resources invested. It is generally acknowledged among the
Latin American medical community that, for these public
health campaigns to make a greater, more tangible differ-
ence in changing lifestyle and behavior across populations,
and to reap benefits in terms of improving disease outcomes
in the long term, the investment in time and money needs
to be far greater and sustained for considerably longer.
Conclusion
If every person with hypertension knew their diagnosis and
received proper treatment with at least one antihyperten-
sive drug, it is very likely that cardiovascular disease would
no longer be the leading cause of death in Latin America or,
indeed, the rest of the world. Better and more timely control
of hypertension in Latin America --- taking into account the
BP profile and ‘characteristics’ of the Latin American hyper-
tensive patient --- may go a long way to reducing the impact
of this major cardiovascular risk factor. More knowledge of
local epidemiological patterns of hypertension, derived via
a national registry for example, as has been established in
countries like Brazil,39 will provide more insight, and help to
tailor and optimize management. In terms of public health
initiatives and policy, we strongly advocate the need for
institutional disease awareness campaigns, similar to those
conducted for certain types of cancer, in order to motivate
the population to measure their BP and consult the physi-
cian as soon as their values go outside of the normal range.
We firmly believe that this is the way forward to reducing
cardiovascular mortality in Latin America and worldwide.
Ethical disclosures
Protection of human and animal subjects. The authors
declare that the procedures followed were in accordance
with the regulations of the relevant clinical research ethics
committee and with those of the Code of Ethics of the World
Medical Association (Declaration of Helsinki).
Confidentiality of data. The authors declare that they have
followed the protocols of their work center on the publica-
tion of patient data.
Right to privacy and informed consent. The authors have
obtained the written informed consent of the patients or
subjects mentioned in the article. The corresponding author
is in possession of this document.
Conflicts of interest
The authors have served as speaker/advisors for Daiichi-
Sankyo.
Acknowledgements
This paper was supported by an unrestricted grant from
Daiichi-Sankyo Japan. We also want to express our gratitude
to Miss Cathy Chow for their invaluable help in writing the
paper.
References
1. Ordunez P, Martinez R, Niebylski ML, Campbell NR. Hyperten-
sion prevention and control in Latin America and the Caribbean.
J Clin Hypertens. 2015;17:499---502.
2. Pan American Health Organization. Deaths due to non-
communicable diseases in countries of the Americas,
regional mortality database 2014. http://www.paho.org/
hq/index.php?option=com content&view=article&id=5967%
3A2011-non-communicable-diseases&catid=2390%3Aregional-
health-observatory-themes&Itemid=2391&lang=en [accessed
08.09.16].
3. Chor D, Pinho Ribeiro AL, Sá Carvalho M, Duncan BB, Andrade
Lotufo P, Araújo Nobre A, et al. Prevalence, awareness, treat-
ment and influence of socioeconomic variables on control of
high blood pressure: results of the ELSA-Brasil Study. PLOS ONE.
2015;10:e0127382.
4. Schargrodsky H, Hernandez-Hernandez R, Champagne BM, Silva
H, Vinueza R, Silva Ayc¸aguer LC, et al. CARMELA: assessment of
cardiovascular risk in seven Latin American cities. Am J Med.
2008;121:58---65.
5. Burroughs Pena MS, Abdala CVM, Silva LC, Ordunez P. Useful-
ness for surveillance of hypertension prevalence studies in Latin
America and the Caribbean: the past 10 years. Rev Panam Salud
Publica. 2012;32:15---21.
6. Rivera-Andrade A, Luna MA. Trends and heterogeneity of car-
diovascular disease and risk factors across Latin America and
Caribbean countries. Prog Cardiovasc Dis. 2014;57:276---85.
7. Kuri-Morales P, Emberson J, Alegre-Diaz J, Tapia-Conyer R,
Collins R, Peto R, et al. The prevalence of chronic diseases and
major disease risk factors at different ages among 150 000 men
and women living in Mexico City: cross-sectional analyses of a
prospective study. BMC Public Health. 2009;9:9.
8. Chow CK, Teo KK, Rangarajan S, Islam S, Gupta R, Avezum A,
et al. PURE (Prospective Urban Rural Epidemiology) Study inves-
tigators. Prevalence, awareness, treatment, and control of
hypertension in rural and urban communities in high-, middle-,
and low-income countries. JAMA. 2013;310:959---68.
9. Hernandez-Hernandez R, Silva H, Velasco M, Pellegrini F,
Macchia A, Escobedo J, et al. Hypertension in seven Latin Amer-
ican cities: the Cardiovascular Risk Factor Multiple Evaluation
in Latin America (CARMELA) study. J Hypertens. 2010;28:24---34.
10. Ikeda N, Sapienza D, Guerrero R, Aekplakorn W, Naghavi M,
Mokdad AH, et al. Control of hypertension with medication: a
comparative analysis of national surveys in 20 countries. Bull
World Health Organ. 2014;92:10---9C.
11. Rubinstein AL, Irazola VE, Calandrelli M, Chen CS, Gutierrez L,
Lanas F, et al. Prevalence, awareness, treatment, and control
of hypertension in the southern cone of Latin America. Am J
Hypertens. 2016, pii:hpw092. [Epub ahead of print].
56 L.M. Ruilope et al.
12. Carvalho MS, Coeli CM, Chor D, Pinheiro RS, Fonseca MJ, Sá
Carvalho LC. The challenge of cardiovascular diseases and dia-
betes to public health: a study based on qualitative systemic
approach. PLOS ONE. 2015;10:e0132216.
13. Ragot S, Beneteau M, Guillou-Bonnici F, Herpin D. Prevalence
and management of hypertensive patients in clinical practice:
cross-sectional registry in five countries outside the European
Union. Blood Press. 2016;25:104---16.
14. Stevens SL, Wood S, Koshiaris C, Law K, Glasziou P, Stevens RJ,
et al. Blood pressure variability and cardiovascular disease: sys-
tematic review and meta-analysis. BMJ. 2016;354:i4098.
15. Salles GF, Reboldi G, Fagard RH, Cardoso CR, Pierdomenico SD,
Verdecchia P, et al. Prognostic effect of the nocturnal blood
pressure fall in hypertensive patients: the Ambulatory Blood
Pressure Collaboration in patients with Hypertension (ABC-H)
meta-analysis. Hypertension. 2016;67:693---700.
16. Kario K, Shimada K, Pickering TG. Clinical implication of
morning blood pressure surge in hypertension. J Cardiovasc
Pharmacol. 2003;42 Suppl. 1:S87---91.
17. Sheppard JP, Hodgkinson J, Riley R, Martin U, Bayliss S,
McManus RJ. Prognostic significance of the morning blood pres-
sure surge in clinical practice: a systematic review. Am J
Hypertens. 2015;28:30---41.
18. Amodeo C, Guimarães GG, Picotti JC, dos Santos CC, Bezzerra
Fonseca KD, Matins RF, et al. Morning blood pressure surge
is associated with death in hypertensive patients. Blood Press
Monit. 2014;19:199---202.
19. Aparicio LS, Barochiner J, Cuffaro PE, Alfie J, Rada MA, Morales
MS, et al. Determinants of the morning---evening home blood
pressure difference in treated hypertensives: the HIBA-Home
Study. Int J Hypertens. 2014;2014:569259.
20. Nobre F, Mion Junior D. Ambulatory blood pressure monitoring:
five decades of more light and less shadows. Arq Bras Cardiol.
2016;106:528---37.
21. Moran AE, Forouzanfar MH, Roth GA, Mensah GA, Ezzati M,
Murray CJ, et al. Temporal trends in ischemic heart disease mor-
tality in 21 world regions, 1980 to 2010: the Global Burden of
Disease 2010 study. Circulation. 2014;129:1483---92.
22. de Oliveira C, Marmot MG, Demakakos P, Vaz de Melo Mam-
brini J, Peixoto SV, Lima-Costa MF. Mortality risk attributable to
smoking, hypertension and diabetes among English and Brazil-
ian older adults (The ELSA and Bambui cohort ageing studies).
Eur J Public Health. 2016;26:831---5.
23. Lotufo PA. Stroke is still a neglected disease in Brazil. Sao Paulo
Med J. 2015;133:457---9.
24. GBD 2013 DALYs and HALE Collaborators, Murray CJ, Barber RM,
Foreman KJ, Abbasoglu Ozgoren A, Abd-Allah F, et al. Global,
regional, and national disability-adjusted life years (DALYs) for
306 diseases and injuries and healthy life expectancy (HALE)
for 188 countries, 1990---2013: quantifying the epidemiological
transition. Lancet. 2015;386:2145---91.
25. Fernandes JG. Stroke prevention and control in Brazil: missed
opportunities. Arq Neuropsiquiatr. 2015;73:733---5.
26. Pereira-Rodríguez J, Pe˜
naranda-Florez D, Reyes-Saenz A,
Caceres-Arevalo K, Ca˜
nizarez-Pérezet Y. Prevalence of cardio-
vascular risk factors in Latin America: a review of the published
evidence 2010---2015. Rev Mex Cardiol. 2015;26:125---39.
27. Lanas F, Avezum A, Bautista L, Diaz R, Luna M, Islam S,
et al. Risk factors for acute myocardial infarction in Latin
America: the INTERHEART Latin American study. Circulation.
2007;115:1067---74.
28. O’Donnell MJ, Chin SL, Rangarajan S, Xavier D, Liu L, Zhang H,
et al. Global and regional effects of potentially modifiable risk
factors associated with acute stroke in 32 countries (INTER-
STROKE): a case---control study. Lancet. 2016;388:761---75.
29. Bielemann RM, da Silva BGC, de Varga Nunes Coll C, Xavier MO,
da Silva SG. Burden of physician inactivity and hospitalization
costs due to chronic diseases. Rev Saúde Pública. 2015;49:75.
30. Fonseca FL, Magalhaes ME, Campana EM, Spineti P, Bouzas GB,
Harboe BB, et al. [OP.6A.04] Epidemiological transition in 30
years of high blood pressure and overweight/obesity in Brazilian
adolescents --- the Rio de Janeiro Study I and II. J Hypertens.
2016;34 Suppl. 2:e67.
31. Medina C, Janssen I, Campos I, Barquera S. Physical inactivity
prevalence and trends among Mexican adults: results from the
National Health and Nutrition Survey (ENSANUT) 2006 and 2012.
BMC Public Health. 2013;13:1063.
32. Lee IM, Shiroma EJ, Lobelo F, Puska P, Blair SN, Katzmarzyk PT,
Lancet Physical Activity Series Working Group. Effect of physi-
cal inactivity on major non-communicable diseases worldwide:
an analysis of burden of disease and life expectancy. Lancet.
2012;380:219---29.
33. López-Jaramillo P, Sánchez RA, Diaz M, Cobos L, Bryce A, Parra
Carrillo JZ, et al. Latin American consensus on hypertension
in patients with diabetes type 2 and metabolic syndrome.
J Hypertens. 2013;31:223---38.
34. Febba A, Sesso R, Barreto GP, Liboni CS, Franco MC, Casarini DE.
Stunting growth: association of the blood pressure lev-
els and ACE activity in early childhood. Pediatr Nephrol.
2009;24:379---86.
35. Franco MC, Casarini DE, Carneiro-Ramos MS, Sawaya AL,
Barreto-Chaves ML, Sesso R. Circulating renin-angiotensin sys-
tem and catecholamines in childhood: is there a role for
birthweight? Clin Sci (Lond). 2008;114:375---80.
36. Lopez-Jaramillo P, Lahera V, Lopez-Lopez J. Epidemic of car-
diometabolic diseases: a Latin American point of view. Ther Adv
Cardiovasc Dis. 2011;5:119---31.
37. Silva SM, Facchini LA, Tomasi E, Piccini R, Thume E, Silveira DS,
et al. Advice for salt, sugar and fat intake habits among adults:
a national-based study. Rev Bras Epidemiol. 2013;16:995---1004.
38. Malta DC, Oliveira TP, Luz M, Stopa SR, da Silva Junior JB,
dos Reis AAC. Smoking trend indicators in Brazilian capitals,
2006---2013. Ciênc Saude Colet. 2015;20:631---40.
39. Jardim PC, Souza WK, Lopes RD, Brandão AA, Malachias MV,
Gomes MM, et al. I RBH --- First Brazilian Hypertension Registry.
Arq Bras Cardiol. 2016;107:93---8.
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... In addition to the actual incremental trend of YLL and the increasing changes from 2006 to 2013 may be due to increased awareness as well as more screening of blood pressure. In other studies conducted in developed countries, increased blood pressure in women is higher than in men [22]. Gender diferences in risk factors and awareness, treatment, and control of hypertension in humans are well established. ...
... Most importantly, the distinct roles of the angiotensin-converting enzyme 2/Apelin signaling, sex hormone, endothelin-1, and sympathetic neuronal activity contribute to sex diferences in blood pressure control [23]. However, like other studies [22,[24][25][26], low rates of awareness, treatment, and control of blood pressure in Iran indicate the difculty and inadequate management of this chronic disease at the population level. Tere are many reasons for inadequate blood pressure control, including poor adherence to treatment, physician inertia, patient's initial cardiovascular risk, and poor adherence to guidelines. ...
... Tere are many reasons for inadequate blood pressure control, including poor adherence to treatment, physician inertia, patient's initial cardiovascular risk, and poor adherence to guidelines. Also, physicians' criteria for diagnosing and determining high BP may be highly subjective and done regardless of the requirements specifed by regional and international management guidelines [22]. ...
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Introduction: Hypertension is known worldwide as a preventable significant risk factor for cardiovascular diseases and their mortality. This study was designed to determine the mortality rate and years of life lost (YLL) due to hypertension in Fars Province. Method: In this cross-sectional study, we extracted all death reports due to hypertension based on age, gender, and the year of death based on ICD-10 from the EDRS system (Electronic Death Registration System). The YLL analysis due to premature death related to hypertension was executed by the 2015 YLL template from WHO in EXCEL 2016 software. To examine the trend of crude and standardized mortality rates and YLL rates for different years, joinpoint regression was used based on the log-linear model. Results: In the 16 years that the study was done (2004-2019), 13443 death cases occurred in the Fars Province, 51.0% of which (6859 cases) were in females and 48.5% (6515 cases) of which were in the 80+ age group. Total YLL due to hypertension in these 16 years of study was 61,344 (1.9 per 1000) in males, 64,903 (2.1 per 1000) in females, and 126,247 (2.0 in 1000) in both genders. According to the joinpoint regression analysis, the 16-year trend of YLL rate due to premature mortality was increasing: the average annual percent change (AAPC) was 4.9% (95% CI -2.6 to 12.85, p value=0.205) for males and 8.4% (95% CI 5.2 to 11.7, p value <0.001) for females. Conclusion: Considering the increasing trend in crude and standardized mortality rates and YLL due to hypertension, it is important for policymakers and decision makers of Health Policy Centers to promote and inform people about the importance of hypertension control and to familiarize them with proper, preventive interventions such as the importance of a healthy diet, routine physical activity, and routine learning programs for different groups in the society especially for people at a higher risk of hypertension.
... Hypertension is a major modifiable risk factor for cardiovascular diseases (CVD), the leading cause of morbidity and mortality in Latin American Countries (LAC) [1,2]. In LAC, up to 40% of the adult population has hypertension, accounting for one in five deaths [2][3][4][5]. The prevention and management of hypertension is a priority for the World Health Organization (WHO) and Pan American Health Organization (PAHO). ...
... There are two PAHO regional target levels for each food category: The regional target level which serves is a maximum, and a lower target level.2 Includes only products with declared sodium content on the food label.3 Statistically significant changes in the proportions meeting the regional (maximum) and the lower sodium targets were determined by the chi-square test or Fisher's exact test for cells with <5 counts. ...
... accessed on 10 November 2021.2 Sodium content was recorded "as consumed".3 Statistically significant changes in the distribution of sodium were determined by the Kolmogorov-Smirnov test. ...
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In 2015, the Pan American Health Organization (PAHO) published sodium targets for packaged foods, which included two distinct levels: one “regional” and one “lower” target. Changes to the sodium content of the food supply in Latin American Countries (LAC) has not been evaluated. A repeated cross-sectional study used food label data from 2015 (n = 3859) and 2018 (n = 5312) to determine changes in the proportion of packaged foods meeting the PAHO sodium targets and the distribution in the sodium content of foods in four LAC (Argentina, Costa Rica, Paraguay, Peru). Foods were classified into the 18 food categories in the PAHO targets. The proportion of foods meeting the regional targets increased from 82.9% to 89.3% between 2015 and 2018 (p < 0.001). Overall, 44.4% of categories had significant decreases in mean sodium content. Categories with a higher proportion of foods meeting the regional and lower targets in 2018 compared to 2015 (p < 0.05) were breaded meat and poultry, wet and dry soups, snacks, cakes, bread products, flavored cookies and crackers, and dry pasta and noodles. While positive progress has been made in reducing the sodium content of foods in LAC, sodium intakes in the region remain high. More stringent targets are required to support sodium reduction in LAC.
... The Latin American context, with its high level of urbanization and inequalities [19] and a high prevalence of hypertension in the adult population (as high as 40% based on some estimates) [2,20], presents a unique opportunity to investigate the associations of individuallevel and area-level SES with hypertension. Understanding how social conditions at various levels relate to non-communicable diseases risk factors like hypertension is critical to achieving sustainable development goals [21]. ...
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Background: Despite global interest in gender disparities and social determinants of hypertension, research in urban areas and regions with a high prevalence of hypertension, such as Latin America, is very limited. The objective of this study was to examine associations between the individual- and area-level socioeconomic status and hypertension in adults living in 230 cities in eight Latin America countries. Methods: In this cross-sectional study, we used harmonized data from 109,184 adults (aged 18-97 years) from the SALURBAL (Salud Urbana en America Latina/Urban Health in Latin America) project. Hypertension was assessed by self-report. The individual-, sub-city- and city-level education were used as proxies of socioeconomic status. All models were stratified by gender. Results: While individual-level education was positively associated with higher odds of hypertension among men (university education or higher versus less than primary: Odds Ratio [OR] = 1.63; 95% confidence interval [CI] = 1.45-1.83) the reverse was true among women (university education or higher versus lower than primary: OR = 0.66, 95%CI = 0.60-0.73), with both associations showing a dose-response pattern. For both genders, living in sub-city areas with higher educational achievement was associated with higher odds of hypertension (OR per standard deviation [SD] = 1.05, 95%CI = 1.01-1.10; OR = 1.09 per SD, 95%CI = 1.03-1.16, for women and men, respectively). The association of city-level education with hypertension varied across countries. In Peru, there was an inverse association (lower proportion of hypertension with a better education at the city level) in women and men, in other countries, no association was observed. Conclusion: The social patterning of hypertension differs by gender and by the level of analysis highlighting the importance of context- and gender-sensitive approaches and policies to reduce the prevalence of hypertension in Latin America.
... 45 Accordingly, the combination of obesity and hypertension in the same individual appears to be a particular characteristic of Latin American populations, which dramatically increases cardiovascular risk factors. 46 The clustering of these significant cardiovascular risk factors may be associated with socioeconomic changes that promote the adoption of more sedentary lifestyles and less healthy eating habits. 47 It is estimated that by 2025, the global prevalence of obesity, defined by a body mass index (BMI) ≥30 kg/m 2 , will reach 18% in men and 21% in women. ...
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Despite some indicators of a localized curtailing of cardiovascular disease (CVD) prevalence, CVD remains one of the largest contributors to global morbidity and mortality. While the magnitude and impact of the coronavirus disease 2019 (COVID-19) pandemic have yet to be realized in its entirety, an unquestionable impact on global health and well-being is already clear. At a time when the global state of CVD is perilous, we provide a continental overview of prevalence data and initiatives that have positively influenced CVD outcomes. What is clear is that despite attempts to address the global burden of CVD, there remains a lack of collective thinking and approaches. Moving forward, a coordinated global infrastructure that, if developed with appropriate and relevant key stakeholders, could provide significant and longstanding benefits to public health and yield prominent and consistent policy resulting in impactful change. To achieve global impact, research priorities that address multi-disciplinary social, environmental, and clinical perspectives must be underpinned by unified approaches that maximize public health.
... However, this cannot be ascertained in our study population, as such information was not recorded. Nonetheless, independent of the underlying causes of our observed trend, blood pressure should be monitored in the long-term (47) among paediatric patients with obesity, as a longer duration of hypertension increases the cardiovascular risk and end-organ damage (48). Of note, the ratio of boys to girls in our study was approximately 2:1. ...
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Objective This study aimed to describe the clinical characteristics of children and adolescents with obesity, and the prevalence of cardiometabolic comorbidities over 10 years in this population from a large metropolitan centre in China. Methods This was a cross-sectional study (2008–2017) of patients aged <18 years with obesity [body mass index (BMI) ≥ 95th percentile for age and sex] enrolled at the Department of Endocrinology, Children’s Hospital of Zhejiang University School of Medicine (Hangzhou, Zhejiang Province). Clinical assessments included anthropometry, blood pressure, liver ultrasound, lipid profile, oral glucose tolerance test, and uric acid. For examination of outcomes, our study cohort was stratified by sex and age bands (<10 vs. ≥10 years), with the study period also split into two strata (2008–2012 and 2013–2017). Results A total of 2,916 patients (1,954 boys and 962 girls) were assessed at a mean age of 10.5 years. Patients almost invariably presented severe obesity (median BMI SDS = 2.98; Q1 = 2.60, Q3 = 3.39). Obesity-related comorbidities were common among boys and girls, including type 2 diabetes mellitus (2.6% and 3.6%, respectively), abnormal glycaemia (33.6% and 35.5%, respectively), hypertension (33.9% and 32.0%, respectively), dyslipidaemia (35.2% and 39.6%, respectively), hyperuricaemia (16.2% and 8.3%, respectively), acanthosis nigricans (71.9% and 64.0%, respectively), abnormal liver function (66.9% and 47.0%, respectively), and non-alcoholic fatty liver disease (NAFLD) (63.8% and 45.1%, respectively); 38.7% of boys and 44.4% of girls aged ≥10 years had metabolic syndrome. Notably, the incidence of many cardiometabolic comorbidities was in 2013–2017 compared to 2008–2012. For example, rates of hypertension among boys aged <10 years and aged ≥10 years rose from 28.4% and 26.5% to 48.0% and 35.8%, respectively, and in girls from 20.3% and 20.8% to 41.7% and 39.6%, respectively. In 2013–2017, 9.5% of girls in the older group had metabolic syndrome compared to 2.2% in 2008–2013. Conclusions We observed a high incidence of obesity-related cardiometabolic comorbidities among Chinese children and adolescents with severe obesity over 10 years. It was particularly concerning that rates of several comorbidities rose markedly over the study period, highlighting the need to address the obesity epidemic early in life (in China and elsewhere) to prevent the development of obesity-related comorbidities and, subsequently, of overt disease.
... 12 Conflicting conclusions about the BP levels and HBP prevalence in the Caribbean and Latin America nations, including Mexico, arise from the paucity of reliable reports, or uncertainty of data collected from epidemiological surveys. 13 For example, in our country, several governmental probabilistic national surveys show striking differences of HBP prevalence in Mexicans aged 20 years or more, since the beginning of this century. The ENSA 2000 (National Health Survey in the year 2000), 14 The official version of that survey, inform a combined gender prevalence of 30.0%, while in a paper published in 2010, the reported prevalence was estimated in 43.2%. ...
... (4) La provincia Holguín durante el período 2019-2020, presentó 1726 personas afectadas para una tasa de 166,2 por 100 000 habitantes, lo que equivale a la pérdida de 9,7 años de vida potencial por cada 100 000 habitantes. (4) El municipio Banes no es una excepción pues al cierre del 2020 se reportaron 2629 enfermos y una de cada cuatro familias tiene alguno de sus integrantes padeciendo alguna de las modalidades de enfermedad cardiovascular, con una prevalencia de 26,5 %. (5) Múltiples estudios se han realizado para determinar la magnitud de la influencia de los factores de riesgo coronario, en los que se reconocen su multiplicidad y asociación como causa de enfermedad cardiovascular, con predominio de la obesidad, la diabetes mellitus, el tabaquismo, y las dietas inadecuadas. (6,7) El cálculo del riesgo cardiovascular global a partir de las tablas de la Organización Mundial de la Salud y la Sociedad Internacional de Hipertensión (OMS/SIH) facilita estratificar de la población con factores de riesgo coronario y ayudan a establecer acciones salubristas que modifiquen estos factores con la finalidad de incrementar el nivel y calidad de vida. (8) Por lo que se considera insuficiente la cantidad de estudios realizados en el contexto nacional que aborden el tema y ante la inexistencia de un estudio municipal que trate esta problemática se realiza esta investigación con el objetivo de determinar el riesgo cardiovascular global y los factores de riesgo coronarios presentes en individuos con riesgo de enfermedad cardiovascular. ...
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Fundamento: las enfermedades cardiovasculares resultan las más comunes, graves y de mayor riesgo en términos de mortalidad y morbilidad en gran parte del mundo. Constituyen un problema de salud prevenible si se tienen en cuenta sus factores de riesgo. Objetivo: caracterizar la epidemiología de los factores de riesgo modificables y el riesgo cardiovascular global. Método: se realizó un estudio descriptivo, retrospectivo, de serie de casos. El universo abarcó los individuos que acudieron a la consulta de cardiología perteneciente al área de salud Policlínico Universitario César Fornet Fruto del municipio Banes, provincia Holguín, durante el período junio-diciembre 2020. Por muestreo aleatorio simple se seleccionaron sesenta y siete individuos que cumplieron los criterios de inclusión/exclusión. Las variables estudiadas fueron: edad, sexo, tabaquismo, obesidad, hipertensión arterial, diabetes mellitus. Se aplicó un cuestionario diseñado a los fines del estudio. El cálculo de Chi Cuadrado, Odds Ratio, riesgo recurrencia permitieron estimar asociación entre variables, la magnitud de asociación y recurrencia del evento. Resultados: los grupos de edades 50-59 y 70-79 años representaron el 26,9 % cada uno, a predominio del sexo femenino (58,2 %). La hipertensión arterial (X²=20,7 OR=54,3 IC 95 % [19,14; 154]), la diabetes mellitus (X²=10 OR=5,52 IC 95 % [2,63; 11,57]) y el tabaquismo (X²=3,8 OR=2,8 IC 95 % [1,4; 5,68]), determinaron la ocurrencia y probabilidad de enfermedad cardiovascular y manifestaron una incidencia y riesgo de ocurrencia predominantes. La coexistencia de tres o más factores de riesgo afectó a 29 individuos (43,2 %) y expresó mayor riesgo (RR=0,76 IC 95 % [0,54; 1,07]). El riesgo cardiovascular clasificó como moderado (34,3 %) y bajo (25,3 %) Conclusiones: el riesgo cardiovascular está determinado por múltiples factores de riesgo modificables.
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Background Implementation research to improve hypertension control is scarce in Latin America. We assessed the effectiveness of an intervention aimed at primary care practitioners and hypertensive patients in a setting that provides integrated care through an accessible network of family practices. Methods We conducted in Cardenas and Santiago, Cuba, a controlled before-after study in 122 family practices, which are staffed with a doctor and a nurse. The intervention comprised a control arm (usual care), an arm with a component targeting providers (hypertension management workshops), and an arm with, on top of the latter, a component targeting patients (hypertension schools). To evaluate the effect, we undertook a baseline survey before the intervention and an endline survey sixteen months after its start. In each survey, we randomly included 1400 hypertensive patients. Controlled hypertension, defined as a mean systolic and diastolic blood pressure below 140 and 90 mmHg, respectively, was the primary endpoint assessed. We performed linear and logistic regression with a Generalized Estimating Equations approach to determine if the proportion of patients with controlled hypertension changed following the intervention. Results Seventy-three doctors, including substitutes, and 54 nurses from the 61 intervention family practices attended the provider workshops, and 3308 patients −51.6% of the eligible ones- participated in the hypertension schools. Adherence to anti-hypertensive medication improved from 42% at baseline to 63% at the endline in the intervention arms. Under the provider intervention, the proportion of patients with controlled hypertension increased by 18.9%, from 48.7% at baseline to 67.6% at endline. However, adding the component that targeted hypertensive patients did not augment the effect. Compared to patients in the control arm, the adjusted OR of having controlled hypertension was 2.36 (95% CI, 1.73–3.22) in the provider and 2.00 (95% CI, 1.68–2.37) in the provider plus patient intervention arm. Conclusions The intervention’s patient component remains to be fine-tuned. Still, we demonstrate that it is feasible to substantially improve hypertension outcomes by intervention at the primary care level, despite an already relatively high control rate.
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Optimal hypertension care and control at population level significantly reduces cardiovascular morbidity and mortality. The study objective was to measure the gaps in the diagnosis, care, and control of hypertension in residents of an urban community in Quito, Ecuador. A cross-sectional population-based study with a sample of 2160 persons was performed using a survey and direct blood pressure measurement. Logistical regression models were used for analyzing factors associated with the gaps, expressed as percentages. The prevalence of hypertension was 17.6% [CI 95% 17.3–17.9%]. The diagnosis gap was 6.1% [CI 95% 5.9–6.2%] among the entire population and 34.5% [CI 95% 33.7–35.3%] among persons with hypertension. No access gaps were detected; whereas the follow-up gap was 22.7% [CI 95% 21.8–23.6%] and control gap reached 43.5% [CI 95% 42.6–44.2%]. Results indicated that being male, older than 64 years, an employee, without health insurance, and not perceiving a need for healthcare, increased the risk of experiencing these gaps. Data showed appropriate access to health services and high coverage in the diagnosis was due to the application of a community and family healthcare model. Notwithstanding, we found significant gaps in the follow-up and control of hypertensive patients, especially among older males, which should warrant the attention of the Ministry of Health.
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Background Chronic kidney disease (CKD) in Latin America (LA) continues to represent a challenge due to the burden of disease it entails and the difficulty in accessing treatment. LA has a total population of 652 million people living in twenty countries that occupy an area of 19.2 million km2.The LA Dialysis and Renal Transplantation Registry (LADRTR), founded in 1991, has collected data and reports on patients receiving kidney replacement therapy (KRT) since 1993.This paper summarizes the registry data corresponding to 2019. Methods Participating countries complete an annual survey collecting aggregated data on incident and prevalent patients on KRT in all modalities. The different treatment modalities considered were hemodialysis (HD), peritoneal dialysis (PD) and living functioning kidney graft (LFG). National gross domestic product per capita (GDP) expressed in US dollars and life expectancy at birth (LEB) corresponding to the year 2019 were collected from the World Bank Data Bank. Prevalence and incidence were compared with previous years and were also correlated with GDP and LEB. Results On 31 December 2019 a total of 432 610 patients were in KRT in LA, corresponding to an overall unadjusted prevalence of 866 pmp. In relation with treatment modality, 66.7% of the prevalent patients were treated by HD and 9.3% by PD while 24% of the patients had a living functional graft. 85 224 patients started KRT in LA, representing a total unadjusted incidence rate of 168 pmp. Diabetic nephropathy as a cause of CKD continues to be a relevant percentage (36%) and five countries reported chronic kidney disease of non-traditional cause. Kidney transplant (KT) rate in the region was 22 pmp, varying from countries with rates close to 1 pmp to greater than 60 pmp. Total prevalence of KRT correlated positively with GDP per capita (r2 = 0.6, p<0.01) and LEB (r2 = 0.23, p<0.05), (Figure 3A and B). Overall incidence rate also significantly correlated with GDP (R2: 0.307 p < 0.05). The overall unadjusted mortality rate was 13%. Conclusion Accessibility to KRT is still limited in LA. It is necessary to continue the efforts made by each country and the Latin American Society of Nephrology and Hypertension to guarantee equal access to treatment.
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Casual blood pressure measurements have been extensively questioned over the last five decades. A significant percentage of patients have different blood pressure readings when examined in the office or outside it. For this reason, a change in the paradigm of the best manner to assess blood pressure has been observed. The method that has been most widely used is the Ambulatory Blood Pressure Monitoring - ABPM. The method allows recording blood pressure measures in 24 hours and evaluating various parameters such as mean BP, pressure loads, areas under the curve, variations between daytime and nighttime, pulse pressure variability etc. Blood pressure measurements obtained by ABPM are better correlated, for example, with the risks of hypertension. The main indications for ABPM are: suspected white coat hypertension and masked hypertension, evaluation of the efficacy of the antihypertensive therapy in 24 hours, and evaluation of symptoms. There is increasing evidence that the use of ABPM has contributed to the assessment of blood pressure behaviors, establishment of diagnoses, prognosis and the efficacy of antihypertensive therapy. There is no doubt that the study of 24-hour blood pressure behavior and its variations by ABPM has brought more light and less darkness to the field, which justifies the title of this review.
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Objective To systematically review studies quantifying the associations of long term (clinic), mid-term (home), and short term (ambulatory) variability in blood pressure, independent of mean blood pressure, with cardiovascular disease events and mortality. Data sources Medline, Embase, Cinahl, and Web of Science, searched to 15 February 2016 for full text articles in English. Eligibility criteria for study selection Prospective cohort studies or clinical trials in adults, except those in patients receiving haemodialysis, where the condition may directly impact blood pressure variability. Standardised hazard ratios were extracted and, if there was little risk of confounding, combined using random effects meta-analysis in main analyses. Outcomes included all cause and cardiovascular disease mortality and cardiovascular disease events. Measures of variability included standard deviation, coefficient of variation, variation independent of mean, and average real variability, but not night dipping or day-night variation. Results 41 papers representing 19 observational cohort studies and 17 clinical trial cohorts, comprising 46 separate analyses were identified. Long term variability in blood pressure was studied in 24 papers, mid-term in four, and short-term in 15 (two studied both long term and short term variability). Results from 23 analyses were excluded from main analyses owing to high risks of confounding. Increased long term variability in systolic blood pressure was associated with risk of all cause mortality (hazard ratio 1.15, 95% confidence interval 1.09 to 1.22), cardiovascular disease mortality (1.18, 1.09 to 1.28), cardiovascular disease events (1.18, 1.07 to 1.30), coronary heart disease (1.10, 1.04 to 1.16), and stroke (1.15, 1.04 to 1.27). Increased mid-term and short term variability in daytime systolic blood pressure were also associated with all cause mortality (1.15, 1.06 to 1.26 and 1.10, 1.04 to 1.16, respectively). Conclusions Long term variability in blood pressure is associated with cardiovascular and mortality outcomes, over and above the effect of mean blood pressure. Associations are similar in magnitude to those of cholesterol measures with cardiovascular disease. Limited data for mid-term and short term variability showed similar associations. Future work should focus on the clinical implications of assessment of variability in blood pressure and avoid the common confounding pitfalls observed to date. Systematic review registration PROSPERO CRD42014015695.
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Background: A registry assessing the care of hypertensive patients in daily clinical practice in public and private centers in various Brazilian regions has not been conducted to date. Such analysis is important to elucidate the effectiveness of this care. Objective: To document the current clinical practice for the treatment of hypertension with identification of the profile of requested tests, type of administered treatment, level of blood pressure (BP) control, and adherence to treatment. Methods: National, observational, prospective, and multicenter study that will include patients older than 18 years with hypertension for at least 4 weeks, following up in public and private centers and after signing a consent form. The study will exclude patients undergoing dialysis, hospitalized in the previous 30 days, with class III or IV heart failure, pregnant or nursing, with severe liver disease, stroke or acute myocardial infarction in the past 30 days, or with diseases with a survival prognosis < 1 year. Evaluations will be performed at baseline and after 1 year of follow-up. The parameters that will be evaluated include anthropometric data, lifestyle habits, BP levels, lipid profile, metabolic syndrome, and adherence to treatment. The primary outcomes will be hospitalization due to hypertensive crisis, cardiocirculatory events, and cardiovascular death, while secondary outcomes will be hospitalization for heart failure and requirement of dialysis. A subgroup analysis of 15% of the sample will include noninvasive central pressure evaluation at baseline and study end. The estimated sample size is 3,000 individuals for a prevalence of 5%, sample error of 2%, and 95% confidence interval. Results: The results will be presented after the final evaluation, which will occur at the end of a 1-year follow-up. Conclusion: The analysis of this registry will improve the knowledge and optimize the treatment of hypertension in Brazil, as a way of modifying the prognosis of cardiovascular disease in the country.
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Background: The main aim of this study was to quantify and compare 6-year mortality risk attributable to smoking, hypertension and diabetes among English and Brazilian older adults. This study represents a rare opportunity to approach the subject in two different social and economic contexts. Methods: Data from the data from the English Longitudinal Study of Ageing (ELSA) and the Bambuí Cohort Study of Ageing (Brazil) were used. Deaths in both cohorts were identified through mortality registers. Risk factors considered in this study were baseline smoking, hypertension and diabetes mellitus. Both age-sex adjusted hazard ratios and population attributable risks (PAR) of all-cause mortality and their 95% confidence intervals for the association between risk factors and mortality were estimated using Cox proportional hazards models. Results: Participants were 3205 English and 1382 Brazilians aged 60 years and over. First, Brazilians showed much higher absolute risk of mortality than English and this finding was consistent in all age, independently of sex. Second, as a rule, hazard ratios for mortality to smoking, hypertension and diabetes showed more similarities than differences between these two populations. Third, there was strong difference among English and Brazilians on attributable deaths to hypertension. Conclusions: The findings indicate that, despite of being in more recent transitions, the attributable deaths to one or more risk factors was twofold among Brazilians relative to the English. These findings call attention for the challenge imposed to health systems to prevent and treat non-communicable diseases, particularly in populations with low socioeconomic level.
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BACKGROUND Hypertension is the leading global preventable risk factor for premature death. While hypertension prevalence has been declining in high-income countries, it has increased continuously in low- and middle-income countries. METHODS We conducted a cross-sectional survey in 7,524 women and men aged 35–74 years from randomly selected samples in 4 cities (Bariloche and Marcos Paz, Argentina; Temuco, Chile; and Pando-Barros Blancos, Uruguay) in 2010–2011. Three blood pressure (BP) measurements were obtained by trained observers using a standard mercury sphygmomanometer. Hypertension was defined as a mean systolic BP ≥140mm Hg and/or diastolic BP ≥90mm Hg and/or use of antihypertensive medications. RESULTS An estimated 42.5% of the study population (46.6% of men and 38.7% of women) had hypertension and an estimated 32.5% (36.0% of men and 29.4% of women) had prehypertension. Approximately 63.0% of adults with hypertension (52.5% of men and 74.3% of women) were aware of their disease condition, 48.7% (36.1% of men and 62.1% of women) were taking prescribed medications to lower their BP, and only 21.1% of all hypertensive patients (13.8% of men and 28.9% of women) and 43.3% of treated hypertensive patients (38.1% of men and 46.5% of women) achieved BP control. CONCLUSIONS This study indicates that the prevalence of hypertension is high while awareness, treatment, and control are low in the general population in the Southern Cone of Latin America. These data call for bold actions at regional and national levels to implement effective, practical, and sustainable intervention programs aimed to improve hypertension prevention, detection, and control.
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Background: Stroke is a leading cause of death and disability, especially in low-income and middle-income countries. We sought to quantify the importance of potentially modifiable risk factors for stroke in different regions of the world, and in key populations and primary pathological subtypes of stroke. Methods: We completed a standardised international case-control study in 32 countries in Asia, America, Europe, Australia, the Middle East, and Africa. Cases were patients with acute first stroke (within 5 days of symptom onset and 72 h of hospital admission). Controls were hospital-based or community-based individuals with no history of stroke, and were matched with cases, recruited in a 1:1 ratio, for age and sex. All participants completed a clinical assessment and were requested to provide blood and urine samples. Odds ratios (OR) and their population attributable risks (PARs) were calculated, with 99% confidence intervals. Findings: Between Jan 11, 2007, and Aug 8, 2015, 26 919 participants were recruited from 32 countries (13 447 cases [10 388 with ischaemic stroke and 3059 intracerebral haemorrhage] and 13 472 controls). Previous history of hypertension or blood pressure of 140/90 mm Hg or higher (OR 2·98, 99% CI 2·72-3·28; PAR 47·9%, 99% CI 45·1-50·6), regular physical activity (0·60, 0·52-0·70; 35·8%, 27·7-44·7), apolipoprotein (Apo)B/ApoA1 ratio (1·84, 1·65-2·06 for highest vs lowest tertile; 26·8%, 22·2-31·9 for top two tertiles vs lowest tertile), diet (0·60, 0·53-0·67 for highest vs lowest tertile of modified Alternative Healthy Eating Index [mAHEI]; 23·2%, 18·2-28·9 for lowest two tertiles vs highest tertile of mAHEI), waist-to-hip ratio (1·44, 1·27-1·64 for highest vs lowest tertile; 18·6%, 13·3-25·3 for top two tertiles vs lowest), psychosocial factors (2·20, 1·78-2·72; 17·4%, 13·1-22·6), current smoking (1·67, 1·49-1·87; 12·4%, 10·2-14·9), cardiac causes (3·17, 2·68-3·75; 9·1%, 8·0-10·2), alcohol consumption (2·09, 1·64-2·67 for high or heavy episodic intake vs never or former drinker; 5·8%, 3·4-9·7 for current alcohol drinker vs never or former drinker), and diabetes mellitus (1·16, 1·05-1·30; 3·9%, 1·9-7·6) were associated with all stroke. Collectively, these risk factors accounted for 90·7% of the PAR for all stroke worldwide (91·5% for ischaemic stroke, 87·1% for intracerebral haemorrhage), and were consistent across regions (ranging from 82·7% in Africa to 97·4% in southeast Asia), sex (90·6% in men and in women), and age groups (92·2% in patients aged ≤55 years, 90·0% in patients aged >55 years). We observed regional variations in the importance of individual risk factors, which were related to variations in the magnitude of ORs (rather than direction, which we observed for diet) and differences in prevalence of risk factors among regions. Hypertension was more associated with intracerebral haemorrhage than with ischaemic stroke, whereas current smoking, diabetes, apolipoproteins, and cardiac causes were more associated with ischaemic stroke (p<0·0001). Interpretation: Ten potentially modifiable risk factors are collectively associated with about 90% of the PAR of stroke in each major region of the world, among ethnic groups, in men and women, and in all ages. However, we found important regional variations in the relative importance of most individual risk factors for stroke, which could contribute to worldwide variations in frequency and case-mix of stroke. Our findings support developing both global and region-specific programmes to prevent stroke. Funding: Canadian Institutes of Health Research, Heart and Stroke Foundation of Canada, Canadian Stroke Network, Health Research Board Ireland, Swedish Research Council, Swedish Heart and Lung Foundation, The Health & Medical Care Committee of the Regional Executive Board, Region Västra Götaland (Sweden), AstraZeneca, Boehringer Ingelheim (Canada), Pfizer (Canada), MSD, Chest, Heart and Stroke Scotland, and The Stroke Association, with support from The UK Stroke Research Network.
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The prognostic importance of the nocturnal systolic blood pressure (SBP) fall, adjusted for average 24-hour SBP levels, is unclear. The Ambulatory Blood Pressure Collaboration in Patients With Hypertension (ABC-H) examined this issue in a meta-analysis of 17 312 hypertensives from 3 continents. Risks were computed for the systolic night-to-day ratio and for different dipping patterns (extreme, reduced, and reverse dippers) relative to normal dippers. ABC-H investigators provided multivariate adjusted hazard ratios (HRs), with and without adjustment for 24-hour SBP, for total cardiovascular events (CVEs), coronary events, strokes, cardiovascular mortality, and total mortality. Average 24-hour SBP varied from 131 to 140 mm Hg and systolic night-to-day ratio from 0.88 to 0.93. There were 1769 total CVEs, 916 coronary events, 698 strokes, 450 cardiovascular deaths, and 903 total deaths. After adjustment for 24-hour SBP, the systolic night-to-day ratio predicted all outcomes: from a 1-SD increase, summary HRs were 1.12 to 1.23. Reverse dipping also predicted all end points: HRs were 1.57 to 1.89. Reduced dippers, relative to normal dippers, had a significant 27% higher risk for total CVEs. Risks for extreme dippers were significantly influenced by antihypertensive treatment (P<0.001): untreated patients had increased risk of total CVEs (HR, 1.92), whereas treated patients had borderline lower risk (HR, 0.72) than normal dippers. For CVEs, heterogeneity was low for systolic night-to-day ratio and reverse/reduced dipping and moderate for extreme dippers. Quality of included studies was moderate to high, and publication bias was undetectable. In conclusion, in this largest meta-analysis of hypertensive patients, the nocturnal BP fall provided substantial prognostic information, independent of 24-hour SBP levels.
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Inadequate blood pressure (BP) control may be linked with poor adherence to guidelines by the treating physician. This study aimed at assessing the rates of controlled hypertension as per the 2009 Reappraisal of the 2007 European Society of Cardiology/European Society of Hypertension (ESC/ESH) guidelines in 2185 hypertensive adults across five countries (Algeria, Pakistan, Ukraine, Egypt and Venezuela). The rates of controlled hypertension according to physician perception, type of therapy and risk factors were evaluated. Overall, 40% of patients had controlled hypertension according to the guidelines. A marked divergence in the rates of controlled hypertension as assessed by physicians and guidelines was observed (72% vs 40%). The presence of high/very high risks was linked to poor BP control. High salt intake [29%; odds ratio (OR) 9.94, 95% confidence interval (CI) 6.72;14.69], treatment non-adherence (27%; OR 7.32, 95% CI 4.82;11.13), lack of understanding of the treatment’s importance (25%; OR 4.95, 95% CI 3.16;7.75), comorbidity (13%) and depression (9%; OR 10.50, 95% CI 5.37;20.54) were major reasons for not achieving hypertension control. Addition of another drug was the most frequent medication change prescribed. Poor rates of BP control warrant repeated promotion of guidelines while identifying potential contributing factors and implementing strategies that re-establish BP control.