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Application of BAROS’ questionnaire in obese patients undergoing bariatric surgery with 2 years of evolution

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BACKGROUND -In recent decades, the high prevalence of obesity in the general population has brought serious concerns in terms of public health. Contrarily to conventional treatment involving dieting and physical exercising, often ineffective in generating long term results, bariatric opera­tions have been an effective method for sustained weight loss in morbidly obese individuals. The Bariatric Analysis and Reporting Outcome System (BAROS) is an objective and recognized system in the overall evaluation of results after bariatric surgery. OBJECTIVE To investigate results concerning a casuistic of morbidly obese patients undergoing bariatric surgery over a 2-year follow-up in terms of weight loss, related medical conditions, safety and changes in quality of life. METHODS A total of 120 obese (17 male and 103 female) patients, who underwent bariatric surgery, were assessed and investigated using the BAROS system after a 2- year follow-up. RESULTS Patients obtained a mean excess weight loss of 74.6 (±15.9) % and mean body mass index reduction of 15.6 (±4.4) Kg/m². Pre-surgical comorbidities were present in 71 (59%) subjects and they were totally (86%) or partially (14%) resolved. Complications resulting specifically from the surgical procedure were observed in 4.2% of cases (two bowel obstructions requiring re-operation, and three stomal stenosis treated with endoscopic dilation). Sixteen subjects (13% of total number of patients) presented minor clinical complications managed through outpatient care. The final scores for the BAROS questionnaire showcased excellent to good results in 99% of cases (excellent 44%, very good 38%, good 23%, acceptable 1%). CONCLUSION According to the BAROS questionnaire, bariatric surgery is a safe and effective method for managing obesity and associated clinical comorbidities, allowing for satisfactory results after a 2-year follow-up. Future studies should address other clinical and psychosocial variables that impact outcome as well as allow for longer follow-ups.
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ORIGINAL ARTICLE
60 • Arq Gastroenterol • 20 17 . v.54 No.1 Jan/Mar
INTRODUCTION
In recent decades, the high prevalence of obesity in the general
population has brought serious concerns in terms of public health.
Overweight and obesity have signicantly increased morbidity
and mortality around the world due to its associated medical
conditions
(12)
.
According to World Health Organization’s projections, the
situation is even more dramatic because it is estimated that by
2030, approximately two third of the world’s population would be
overweight or obese (2.2/3.3 billion)
(11)
.
According to the IBGE (Brazilian Institute of Geography and
Statistics), from 2006 to 2013 the prevalence of obesity (BMI>30)
in adults increased from 11.8% to 17.5%, and for the rst time men
reached approximately the same obesity rate of women.
Consequently, the increased incidence of overweight and obe-
sity in the Brazilian general population is overloading the public
health system (SUS – Unied Public Health System), requiring
treatment of these conditions and associated diseases
(13)
.
The burden of obesity is related to serious health consequences
associated to obesity, including type-2 diabetes, cardiovascular
disease, musculoskeletal disorders and certain types of cancers.
Application of BAROS’ questionnaire in obese
patients undergoing bariatric surgery with
2 years of evolution
Caetano de QUEIROZ1, José Afonso SALLET2, Pedro Gabriel Melo DE BARROS E SILVA1,
Luzia da Gloria Pereira de Sousa QUEIROZ1, Jélis Arenas PIMENTEL2 and Paulo Clemente SALLET2
Received 11/4/2016
Accepted 10/8/2016
ABSTRACTBackground – In recent decades, the high prevalence of obesity in the general population has brought serious concerns in terms of public
health. Contrarily to conventional treatment involving dieting and physical exercising, often ineffective in generating long term results, bariatric opera-
tions have been an effective method for sustained weight loss in morbidly obese individuals. The Bariatric Analysis and Reporting Outcome System
(BAROS) is an objective and recognized system in the overall evaluation of results after bariatric surgery. Objective – To investigate results concerning
a casuistic of morbidly obese patients undergoing bariatric surgery over a 2-year follow-up in terms of weight loss, related medical conditions, safety
and changes in quality of life. Methods – A total of 120 obese (17 male and 103 female) patients, who underwent bariatric surgery, were assessed and
investigated using the BAROS system after a 2- year follow-up. Results – Patients obtained a mean excess weight loss of 74.6 (±15.9) % and mean
body mass index reduction of 15.6 (±4.4) Kg/m2. Pre-surgical comorbidities were present in 71 (59%) subjects and they were totally (86%) or partially
(14%) resolved. Complications resulting specically from the surgical procedure were observed in 4.2% of cases (two bowel obstructions requiring
re-operation, and three stomal stenosis treated with endoscopic dilation). Sixteen subjects (13% of total number of patients) presented minor clinical
complications managed through outpatient care. The nal scores for the BAROS questionnaire showcased excellent to good results in 99% of cases
(excellent 44%, very good 38%, good 23%, acceptable 1%). Conclusion – According to the BAROS questionnaire, bariatric surgery is a safe and effective
method for managing obesity and associated clinical comorbidities, allowing for satisfactory results after a 2-year follow-up. Future studies should
address other clinical and psychosocial variables that impact outcome as well as allow for longer follow-ups.
HEADINGS – Morbid obesity. Bariatric surgery. Body weight. Quality of life.
Declared conflict of interest of all authors: none
Disclosure of funding: no funding received
1 Hospital Vitória, São Paulo, SP, Brasil; 2 Instituto de Medicina Sallet, São Paulo, SP, Brasil.
Correspondence: Jélis Arenas Pimentel. Rua Gomes de Carvalho, 1507. Bairro Vila Olímpia – CEP: 04547-005 – São Paulo, SP, Brasil. E-mail: jelisarenas@gmail.com
Some of these conditions are directly related to the principal causes
of death, such as heart disease and stroke
(16)
. Several other condi-
tions associated to obesity can lead to a reduced life expectancy
and poor quality of life, such as obstructive sleep apnea, infertility,
obstetric complications and psychiatric comorbidities
(6)
.
Contrarily to conventional treatment involving dieting and
physical exercising, often ineffective in generating long term re-
sults
(10)
, bariatric operations have been an effective method for
sustained weight loss in morbidly obese individuals
(2,7,9)
.
The Roux-en-Y gastric bypass (RYGBP) limits caloric intake
and also reduces calorie absorption. Other mechanisms such as
alterations in postprandial circulating levels of gut hormones may
also contribute to the weight loss observed after these bariatric
operations
(4)
.
However, weight loss is not the only criteria for successful
outcome following bariatric surgery, since the improvement in
comorbidities and changing health-related quality of life are also
very important criteria of outcome, especially for the patient’s
perspective.
The bariatric analysis and reporting outcome system (BAROS)
is an objective and recognized system in the overall evaluation of
results after bariatric surgery
(17,18)
.
AG-2016-35
dx.doi.org/10.1590/S0004-2803.2017v54n1-12
Queiroz C, Sallet JA, de Barros e Silva PGM, Queiroz LGPS, Pimentel JA, Sallet. PC.
Application of BAROS’ questionnaire in obese patients undergoing bariatric surgery with 2 years of evolution
Arq Gastroenterol • 20 17 . v.54 No.1 Jan/Mar • 61
The BAROS combines the Moorehead- Ardelt QoL question-
naire, which incorporates questions about self-esteem and activity
levels as items impacting QoL, with other data relevant to evalu-
ation of bariatric surgery outcomes, including the percentage of
excess weight loss. (%EWL), improvement in co-morbid conditions,
and complications, Therefore, it produces a valid and reliable as-
sessment of the QoL outcomes after weight loss surgery. Several
studies have used the BAROS, allowing fairly consistent compara-
tive analysis between various research centers
(1,3,14)
.
The main objectives of the present study are to report results
concerning a casuistic of morbidly obese patients undergoing
RYGB after a period of 2 years. They were analysed in terms of
weight loss, improvement of obesity related medical conditions,
and quantitative changes in health-related quality of life (QoL),
discussing our results comparatively to the current literature docu-
menting results regarding these outcome variables.
METHODS
This is a retrospective, descriptive study with a quantitative
approach, carried out with a sample of 120 medical records of
patients undergoing bariatric surgery, laparoscopic Roux-en-Y
gastric bypass (RYGB), at a center of excellence certied by Surgical
Review Corporation (SRC) and Brazilian Society of Bariatric And
Metabolic Surgery (SBCBM) in 2012 for the realization of such
surgery in the state São Paulo (Hospital and Maternity Vitoria).
The patient’s charts were selected and data were collected through
the institution database, using the following inclusion criteria:
patients who underwent RYGB between the months of March to
June 2011 aged 20 to 50 years.
For the scope of comparison, we conducted a search for articles
on the platform PubMed with the keywords: bariatric surgery,
RYGB and BAROS.
The calculation of %EWL (percent of excess weight loss) was
based on the Mean Ideal Weight Women and Men According to
Height
(15)
.
Data were collected through the institution database, in order
to obtain information concerning the changes occurred on the fol-
lowing items: loss of excess weight, evolution of comorbidities and
surgical or clinical complications. The ve aspects of quality of life
(self-esteem, willingness to physical activity, sociability, willingness
to work and sex life) were assessed by telephone calls, according
to the BAROS items. This evaluation method using the BAROS
instrument allowed us to classify the patients into ve groups (poor,
acceptable, good, very good or excellent) based on a score table.
Surgical procedures were performed by a team of largely ex-
perienced surgeons, according to standard techniques described in
routine Roux-en-Y gastric by-pass guidelines (RYGB)
(19)
.
Diagnostic criteria and assessment of clinical co-morbidities,
and parameters considered in the analysis of outcome were based
on specications proposed by Oria and Moorehead
(17,18)
. The cur-
rent analysis followed the ethical aspects described in the Declara-
tion of Helsinki and the Document of the Americas. The protocol
and all other applicable documents were approved by the local
institutional review board.
Statistics
Statistics were computed using IBM SPSS statistical package,
version 20. In the descriptive statistics, continuous variables were
presented as means and standard deviation and categorical vari-
ables as frequencies and percentages. Kolmogorov-Smirnov tests
were used to test normality of distributions among continuous vari-
ables: age, BMI reduction and %EWL showed normal distributions.
BAROS scores related to %EWL (P<0.001), QoL (P=0.002) and
BAROS total scores (P=0.04) showed non-normal distributions.
ANOVA and Mann-Whitney tests were used according to the
normality of distributions. A maximum limit of signicance of 5%
was dened for chance of type I error (P<0.05) in two-tailed tests.
RESULTS
Clinical demographical data and weight loss results:
Results concerning clinical data, baseline and end-point
variables in 120 patients
(103 women and 17 men) are showed in Table 1.
Patients showed highly signicant reductions in weight and
BMI along the 2-year follow-up period (mean days after sur-
gery=794 (±33) days). Overall, mean percent excess weight loss
was 74.6 (±15.9) and BMI reduction was 15.6 (±4.4) Kg/m
2
. Women
showed%EWL higher than men (F=10.7; P=0.001). However, with
reference to BMI reduction, women showed just a non-signicant
trend to higher reduction comparatively to men (F=2.7; P=0.102).
TABLE 1. Clinical, baseline and 2-year follow-up variables in 120 patients submitted to RYGB
Gender Age
(years)
Baseline
BMI
Baseline
Weight
Excess
Weight Final Weight Final BMI BMI
Reduction
%Excess
Weight Loss
Hospital
(days)
Male (n=17) 36.2 (±7.6) 46.1 (±6.4) 152.3 (±32.7) 81.5 (±31.0) 101.4 (±21.4) 32.2 (±5.9) 13.9 (±5.9) 63.4 (±15.5) 3.4 (±1.0)
Female (n=103) 36.2 (±7.0) 44.2 (±4.3) 120.5 (±16.2) 61.2 (±14.0) 74.7 (±12.5) 28.3 (±4.3) 15.8 (±4.1) 76.5 (±15.3) 3.4 (±1.8)
Total (n=120) 36.2 (±7.1) 44.5 (±4.7) 125.0 (±22.2) 64.0 (±18.7) 78.5 (±16.8) 28.9 (±4.8) 15.6 (±4.4) 74.6 (±15.9) 3.4 (±1.7)
Statistics
Men:Women
F=0.001;
P=0.970
F=2.48;
P=0.118
F=39.6;
P<0.001
F=20.01;
P<0.001
F=52.93;
P<0.001
F=10.19;
P=0.002
F=2.71
P=0.102
F=10.68
P=0.001
Statistics
BaseLine:Final
T=39.7;
df=119;
P<0.000
T=38.4;
df=119;
P<0.000
RYGB: Roux-en-Y gastric bypass
Queiroz C, Sallet JA, de Barros e Silva PGM, Queiroz LGPS, Pimentel JA, Sallet. PC.
Application of BAROS’ questionnaire in obese patients undergoing bariatric surgery with 2 years of evolution
62 • Arq Gastroenterol • 20 17 . v.54 No.1 Jan/Mar
BAROS results
Results of row scores obtained from the 120 subjects using the
BAROS scale are presented on Table 2. Referencing the total score
of the BAROS scale, women presented better results comparatively
to men (Mann-Whitney P=0.005). Table 2 shows us that this effect
was mainly.
TABLE 2. BAROS scores in 120 obese subjects after a 2-year follow-up following RYGB
Gender BAROS %EWL BAROS QoL BAROS Control
Comorbidities
BAROS
Complications Total BAROS
Men (n=17) 2.12 (±0.70) 2.08 (±0.75) 1.24 (±1.39) -0.13 (±0.33) 5.3 (±1.5)
Women (n=103) 2.52 (±0.57) 2.36 (±0.68) 1.77 (±1.44) -0.13 (±0.30) 6.6 (±1.7)
Total (n=120) 2.47 (±0.61) 2.32 (±0.69) 1.69 (±1.44) -0.13 (±0.30) 6.4 (±1.7)
Mann-Whitney U test Mann-Whitney
(P=0.018)
Mann-Whitney
(P=0.140)
Mann-Whitney
(P=0.110)
Mann-Whitney
(P=0.586)
Mann-Whitney
(P=0.005)
RYGB: Roux-en-Y gastric bypass. EWL: excess weight loss. QoL: quality of life.
TABLE 3. Surgical and clinical complications according to BAROS
criteria in 120 morbidly obese patients who underwent RYGB after a
2-year follow-up.
Complications N (%)
SURGICAL
Major (-1.0)
Early
Late
Bowel obstruction (*)
---
2 (1.7%)
---
Minor (-0.2)
Early
Late
---
Stomal stenosis
---
3 (2.5%)
CLINICAL
Major (-1.0)
Early
Late
Pulmonary embolism
---
1 (0.8%)
---
Minor (-0.2)
Early
Late
Deep venous thrombosis
Dysfagia
Urinary tract infection
Persistent nausea and vomiting
Anemia
Renal lithiasis
Metabolic deciency
Depression
2 (1.7%)
1 (0.8%)
1 (0.8%)
1 (0.8%)
7 (5.8%)
1 (0.8%)
2 (1.7%)
1 (0.8%)
Incidental
Cholelithiasis*
(-1.0)
Late After bariatric surgery
(2 year- follow up)
9 (7.5%)
RYGB: Roux-en-Y gastric bypass. * Choletithiase is not considered as a complication of
bariatric surgery
Associated with the highest scores in BAROS %EWL observed
in women (mean=2.52 ±0.57) as compared to men (mean=2.12
±0.70) (P=0.018), followed by a tendency to relatively better satis-
faction in women concerning items of quality of life (although not
signicant, P=0.14). However, there were no signicant differences
between gender regarding partial BAROS scores involving QoL,
control of comorbidities, or clinical/surgical complications.
Regarding pre-surgical comorbidities described as categorical
data, within male patients (n=17), 9 (53%) showed no comorbidi-
ties, 3 (18%) cardiovascular, 2 (12%) metabolic syndromes, and 1
(6%) pulmonary/lung conditions. Only two male subjects showed
association of 2 comorbidities (cardiovascular and metabolic,
12%). In the group of women (n=103), there were 40 (39%) cases
without comorbidities, 23 (22%) cases with cardiovascular, 6 (6%)
with osteoarticular, 4 (4%) with metabolic, 2 (2%) with gastroin-
testinal, and 1 (1%) with pulmonary clinically relevant conditions.
Sixteen women showed association between cardiovascular and
metabolic disorders (15.5%) and 4 (4%) between cardiovascular and
osteoarticular disorders. Two women showed association between
trhee or more comorbidities.
From the eight men presenting pre-surgical comorbidities,
there was full resolution in ve (62.5%) cases and partial resolu-
tion in three(37.5%) cases. From the 63 women with pre- surgical
comorbidities, 56 (89%) cases showed complete resolution and
seven (11%) cases partial resolution of comorbidities. Overall,
from the 71 (59%) subjects suffering from pre- surgical conditions,
complete (61 [86%] cases) or partial resolution (10 [14%] cases) was
observed in all subjects.
The analysis of surgical and/or clinical complications showed
that in 92 subjects (13 [76.5%] men and 89 [74.2%] women) there
were no complications at all. Concerning the complications strictly
arising from the surgery, reoperation due to bowel obstruction was
needed in two patients (1.7% of total casuistic) and there were three
(2.5%) cases of stomal stenosis, solved by endoscopic dilation.
Therefore, complications specically resulting from the surgical
procedure were observed in 4.2% of cases.
Along the 2-year follow-up, nine (7.5%) patients showed in-
cidental cholelitiasis and needed cholecystectomy. Sixteen (13%
of total casuistic) subjects presented minor clinical complications
managed by means of outpatient treatment (1 man and 15 women).
On the other hand, one patient (0.8% of total casuistic) suffered
major clinical complication requiring hospital admission due to pul-
monary embolism as early clinical complication. All complications
were solved with specic clinical measures or surgical procedures
during hospitalizations shorter than 7 days, with no mortality.
Complications are listed in Table 3.
Queiroz C, Sallet JA, de Barros e Silva PGM, Queiroz LGPS, Pimentel JA, Sallet. PC.
Application of BAROS’ questionnaire in obese patients undergoing bariatric surgery with 2 years of evolution
Arq Gastroenterol • 20 17 . v.54 No.1 Jan/Mar • 63
Thus, total scores of the BAROS scale allowed good (28 cases
[23%]), very good (38 [32%] cases) or excellent results (53 [44%]
cases) in 99% of the total sample (119 cases). (Table 4)
needed cholecystectomy. Sixteen (13% of total casuistic) subjects
presented minor clinical complications managed by means of
outpatient six treatment (one man and 15 women). On the other
hand, one (0.8% of total casuistic) patient suffered a major clini-
cal complication requiring hospital admission due to pulmonary
embolism. All complications were treated clinically or surgically,
with admissions to hospital lasting less than 7 days. No deaths
were documented.
Regarding total scores obtained with the BAROS questionnaire,
results were considered excellent by 44% of patients, very good by
32%, good by 23%, and acceptable by one (0.8%) patient. Overall,
the majority of patients (99%) presented with scores varying from
good to excellent. This result seems to be consistent with other
studies, as e.g., the study of Suter and colleagues
(21)
. That particular
study involved 379 patients undergoing RYGB in Switzerland, and
it found that more than 95% of patients had a good to excellent
5-year overall result according to the BAROS score.
Changes in QoL
Several surgical teams have been using the BAROS system in
the follow-up of bariatric patients in order to analyse quality of
life variables. In our study, in spite of gender, subjects scored a
mean of 2.32 (SD=0.69) in the items of QoL. According to the
BAROS scalar ranking for QoL evaluation, most of patients rated
their condition as improved or much improved. Again, the mean
score related to QoL in our sample was similar to those presented
in the latest literature
(21)
.
Finally, it is wise to point out some of the limitations of our
study: Putative (?) characteristics of patients that may impact re-
sults concerning weight loss and QoL, such as ethnicity, fat mass,
physical activity, level of education, and psychiatric state were not
documented. Other than that, the casuistic of male subjects was
relatively small compared to women, and a longer period of follow-up
would be advisable in order to assess the stability of results.
CONCLUSION
The present study, based on the follow-up of 120 patients 2 years
after underwent to RYGB, conrms previous results concerning
efcacy and safety of bariatric surgery in the control of obesity and
related conditions. The mortality rate was zero. Patients showed
mean %EWL of 75% and total or partial control of clinical condi-
tions in all 71 cases suffering from pre- surgical co-morbidities. This
surgical procedure proved to be safe, with 4.2% percent of cases
presenting with complications specically related to the surgical
procedure. Sixteen (13% of the total casuistic) subjects experienced
clinical complications requiring clinical outpatients treatment
(9.1% of the total patients) or in some cases including hospital
admission (6.9% of the total patients). As reported by a number
of studies, using the BAROS system allows us to identify good
to excellent results concerning items of quality of life and overall
satisfaction. We have also found that both male gender and age can
be associanted with poor results as far as weight reduction. Based
on our experience and medical literature, it is recommended that
future studies also investigate other important variables impacting
the outcome of bariatric interventions, such as medical (e.g., fat
mass), psychosocial (e.g., education, income, depression, compul-
sive eating)
(8,20)
, ethnic, and lifestyle (e.g., inactivity, overeating), in
order to better identify inuential variables and risk factors over
longer periods of follow-up.
TABLE 4. Results concerning total score of BAROS showed in cate-
gorical data of 120 subjects submitted to RYGB at the end of a 2-year
follow-up period
Total BAROS
Categorical
data
Acceptable Good Very good Excellent
Man
(n=17) 09
(7.5%)
3
(2.5%)
5
(4.2%)
Women
(n=103)
1
(0.8%)
19
(15.8%)
35
(29.2%)
48
(40%)
Total
(n=120)
1
(0.8%)
28
(23.3%)
38
(31.7%)
53
(44.2%)
RYGB: Roux-en-Y gastric bypass. X2=9.8; P=0.020.
DISCUSSION
Weight loss
After a period of 2 years, patients showed mean %EWL of
74.6 (±15.9) and BMI reduction of 15.6 (±4.4). These results are
similar to those found in literature. Indeed, a recent metanalysis
has reported mean %EWL of 74.4% and BMI reduction of 14.5
in randomized controlled studies of patients underwent gastric
bypass after 2-years of follow-up
(5)
.
Overall, literature reports that male gender and age are nega-
tively associated with weight loss after bariatric procedures
(3)
.
Our study showed that women drop a higher percentage of
excess weight when compared to men. There was also a trend to
the same effect with reference to BMI reduction. However, since
those differences in BMI reduction showed just a non-signicant
trend to higher reduction of weight in women (F=2.7; P=0.102)
as well as higher %EWL That seems to be partially resulting
from the lower baseline mean excess weight of women compara-
tively to men. On the other hand, controlling for pre-surgical
BMI, we have found trends to negative correlations between age
and %EWL (R= -0.160; P=0.083) and age and BMI reduction
(R= -0.165; P=0.073).
Outcome variables according to BAROS scores
We have used the Bariatric Analysis and Reporting Outcome
System (BAROS) in order to access variables impacting outcome
results of bariatric surgery. Improvement of co-morbid conditions
associated with obesity is one of the most important variables
considered in the success of bariatric treatment. In the present
sample of subjects, from 71 cases with one or more co-morbidites
associated to obesity, there were complete remission in 61 (86%)
cases and partial resolution in 10 (14%) cases.
With reference to complications strictly arising from the
surgery (4.2% of cases), reoperation was needed in two patients
(1.7% of total casuistic) due to bowel obstruction and three in
cases due to stomal stenoses (treated through endoscopic dila-
tion). Along the follow-up, nine patients showed cholelitiasis and
Queiroz C, Sallet JA, de Barros e Silva PGM, Queiroz LGPS, Pimentel JA, Sallet. PC.
Application of BAROS’ questionnaire in obese patients undergoing bariatric surgery with 2 years of evolution
64 • Arq Gastroenterol • 20 17 . v.54 No.1 Jan/Mar
ACKNOWLEDGEMENTS
We acknowledge the Vitória Hospital Staff specially Dr.
Marcio Arruda, Dr. Pedro Roberto Fausto, Dr. Vinicius Fer-
reira da Rocha and Dr. Nelcy do Amaral for logistic support and
Dra. Flávia Carvalho Silveira for the text revision and scientic
contributions.
Authors’ contributions
Queiroz C: research idealizer, data collector, data processor.
Sallet JA: literature review, statistic reviewer article reviewer. deBar-
ros e Silva PGM: article production, data processor. Queiroz LGPS:
data collector, article production. Pimentel JA: corresponding
author, literature review, article production. Sallet. PC: translator,
article production, technical reviewer.
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RESUMOContexto – Nas últimas décadas, a alta prevalência de obesidade na população geral trouxe grandes preocupações para a saúde pública.
Contrariamente ao tratamento convencional envolvendo dieta e atividade física, quase sempre inefetivo em gerar resultados a longo prazo, a cirurgia
bariátrica vem se mostrando um método efetivo de perda de peso mantida em indivíduos com obesidade mórbida. O Bariatric Analysis and Reporting
Outcome System (BAROS) é um sistema reconhecido e objetivo para a avaliação global de resultados depois de cirurgia bariátrica. Objetivo–In-
vestigar os resultados referentes à casuística de pacientes obesos mórbidos submetidos à cirurgia bariátrica em um período de 2 anos em termos de
perda de peso, condições clínicas relacionadas, segurança e qualidade de vida. Métodos – Um total de 120 pacientes obesos (17 masculinos e 103
femininos) admitidos consecutivamente durante período de 4 meses para cirurgia bariátrica foram avaliados e investigados usando o sistema BAROS
após 2 anos de evolução. Resultados – Os pacientes apresentaram redução média percentual de excesso de peso de 74,6 (±15,9) % e redução média
de índice de massa corporal de 15,6 (±4,4) Kg/m2. Comorbidades pré-cirúrgicas estavam presentes em 71 (59%) pacientes e em todos eles foram total
(86%) ou parcialmente (14%) resolvidas. Complicações resultantes especicamente do procedimento cirúrgico foram observadas em 4,2% dos casos
(duas obstruções intestinais exigindo reoperação e três estenoses anastomóticas resolvidas com dilatação endoscópica). Dezesseis (13%) pacientes
apresentaram complicações clínicas menores resolvidas com manejo clínico ambulatorial. Os escores totais do BAROS classicaram os resultados
como excelente até bom em 99% dos casos (44% excelente, 38% muito bom e 23% bom) e aceitável em 1% dos casos. Conclusão – De acordo com o
questionário BAROS, a cirurgia bariátrica se mostrou segura e efetiva no controle da obesidade e de comorbidades clínicas associadas, permitindo
satisfação geral dos pacientes após 2 anos de seguimento. Estudos futuros deverão também investigar outras variáveis clínicas e psicossociais de possível
impacto na evolução e por períodos de seguimento mais longos.
DESCRITORES – Obesidade mórbida. Cirurgia bariátrica. Peso corporal. Qualidade de vida.
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... However, physical exercise could positively influence skeletal muscle mass in many clinical populations [13][14][15][16], where we can include bariatric patients. 26. In this point, bariatric surgery predisposes patients to sarcopenia and consequently osteoporosis, because the relationship is relevant [11]. ...
... Questionnaire "Bariatric Analysis and Reporting Outcome System (BAROS) as a self-report measure, validated for Portuguese, specific for bariatric surgery. This evaluation instrument was developed by the members of the NIH Consensus Conference panel in 1998 to respond to the need for a standardized method to analyze and report the results of bariatric surgery [26]. ...
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Introduction Bariatric surgery is one of the treatments for severe obesity, with proven efficacy in reducing weight and diseases associated with obesity. Weight loss associated with bariatric surgery is greatly associated with a significant reduction of skeletal muscle and bone mineral mass, which leads us to induce that after bariatric surgery, patients incur an increased risk of sarcopenia. The need for prophylactic programs that prevent sarcopenia in bariatric surgery patients seems to be one of the crucial points for the long-term surgical success of bariatric and metabolic surgery. The aim of this randomized clinical trial will be to study the effects of a 16-week supervised exercise intervention program on the prevention of sarcopenia, in patients undergoing bariatric surgery. As a secondary purpose, it is also intended to characterize metabolic risk factors, physical fitness, and quality of life in post-bariatric surgery patients. Method A total of 45 patients on the waiting list for bariatric surgery and who have subsequently perfurgery, will be include on EXPOBAR (EXercise POst BARiatric) and randomized into 2 groups, experimental and control. The intervention starts one month after surgery, for a total of 16 weeks. Parameters of body composition, metabolic risk, quality of life, physical activity, physical fitness, and sedentary behavior will be determined. For each participant, outcomes are measured at five different time points: before the surgery, before the exercise program, after the exercise program, six and twelve months after de exercise program. Results This study will provide the effects of a physical exercise on sarcopenia, in patients after bariatric surgery. Trial registration The trial was registered at Clinicaltrials.gov NCT03497546.
... The median BAROS score in our sample was 4.3, which represents a good result for BS, but lower than that found by other authors. Among a sample of patients evaluated 2 years after RYGB, Queiroz, et al. 23 reported a score of 6.4, and Khaitan, et al. 21 reported a score of 5.8. ...
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Aim: To analyze the long-term QoL of patients who underwent Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG). Methods: We evaluated 257 patients from three private clinics in Santiago, Chile, with ~10-y since surgery. The Bariatric Analysis and Reporting Outcome System (BAROS) was used. Results: Median values for the BAROS score indicated good results of treatment:4.3 (2.3-6.0) and 4.1 (2.1-6.4) for RYGB and SG patients, respectively. The Moorehead-Ardelt Quality of Life (MAQoL) score was higher in patients with SG compared to RYGB (1.5 vs. 1.3, p = 0.047). A moderate, positive, and significant correlation was observed between the percentage excess weight loss and MAQoL score (rho= 0.48, p<0.001). Conclusions: Patients undergoing BS showed a good QoL even in the long term (~10 y).
... Items are rated on a 5-point Likert scale with the mean score of items within each domain used to calculate the domain score. Domain scores are scaled in a positive direction (ie, higher scores indicate a higher QoL) [19,20]. ...
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(1) Introduction: The COVID-19 pandemic presented unique challenges for patients and healthcare providers, especially for those working with obesity and related health problems. E-health has emerged as a crucial tool for the follow-up of users undergoing bariatric surgery during this period, allowing remote monitoring of users' health status and providing access to virtual consultation with health professionals. This study aims to analyze the impact of the use of telemedicine during the COVID-19 pandemic on the results of bariatric surgery and user satisfac-tion with this follow-up. (2) Method: Observational study with retrospective data collection. The variables were divided into several groups: health data, associated comorbidities, quality of life, quality of sleep and satisfaction with telemedicine monitoring. (3) Results: Surgery significantly affected weight loss, in general more than 75% loss of excess weight. Comorbidities, like the qual-ity of life, were reversed over time, with 50% of subjects maintaining excellent levels. Although most users were satisfied with the monitoring, the variables had no relationship. (4) Conclusions: The follow-up assured by telemedicine did not alter the results of bariatric surgery, which may allow us to infer that it may be an option to consider for regular monitoring of the post-bariatric surgery process.
... In line with similar studies, our findings therefore underline the importance of long-term follow-up via QoL questionnaires of patients undergoing bariatric surgery, to enable standardized between-group comparisons with defined criteria [18,19]. ...
... Previous studies have investigated food tolerance in patients who underwent bariatric surgeries on 1-year follow-up and reported that the short-term score improvement was most notable in the order LSG, followed by RYGB, then gastric band [8,9]. Other studies have reported similar improvements in terms of weight reduction and BAROS on 2-year follow-up after LSG and RYGB [10,11]. However, studies using both FTS and BAROS questionnaires to evaluate eating tolerance and postoperative QoL after LSG in morbid Korean patients are scarce [12]. ...
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Purpose: This study aimed to assess the association of dietary quality and surgical satisfaction with the amount of total weight loss (TWL) 1 year after laparoscopic sleeve gastrectomy (LSG) using the food tolerance score (FTS) and Bariatric Analysis and Reporting Outcome System (BAROS) questionnaires. Materials and methods: This single-center retrospective study included patients who underwent LSG due to morbid obesity. Only those who have 1-year follow-up data were included and divided into 2 groups: suboptimal TWL (STWL) ≤20% and optimal TWL (OTWL) >20%. Clinical data and questionnaires recorded 1 year after surgery were collected. FTS was used to evaluate the degree of food tolerance, and BAROS assessed surgical outcomes, including weight loss, comorbidity changes, and quality of life (QoL). The total FTS and BAROS scores of the 2 groups were compared. Results: Of 580 patients, 159 were included. Patients in STWL (n=17) were significantly older than those in OTWL (n=142) (42.24±9.28 vs. 35.92±8.71 years old, P=0.006). The total FTS (1-30 points) for STWL and OTWL were 24.88±3.43 and 25.04±3.14, respectively (P=0.845). Although the total BAROS scores (maximum: 9 points) were significantly lower in STWL than in OTWL (5.96±1.48 vs. 7.20±1.40, P<0.001). The only variable that made this difference was weight loss. There were no significant differences in other variables, such as medical conditions, QoL, and complications. Conclusion: In terms of FTS and BAROS score, there is no difference in postoperative satisfaction and QoL between STWL and OTWL after LSG, except for the degree of weight loss.
... This QoL improvement evolves over time, with differences also found between the scores obtained at short term and long term. In line with similar studies, our ndings therefore underline the importance of long-term follow-up via QoL questionnaires of patients undergoing bariatric surgery, to enable standardized between-group comparisons with de ned criteria [18,19]. ...
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Background: Laparoscopic One Anastomosis Gastric Bypass and Laparoscopic Roux-en-Y gastric Bypass are two of the most common bariatric techniques. We compared quality of life in both procedures, assessing pre-operative and long term post-operative differences in quality of life, physical activity level and psychosocial functioning in patients undergoing bariatric surgery. Methods: A prospective cohort study including obese patients undergoing either Laparoscopic One Anastomosis Gastric Bypass or Laparoscopic Roux-en-Y gastric Bypass. The Moorehead-Ardelt Quality of Life Questionnaire II and Gastrointestinal Quality of Life Index (GIQLI) questionnaires were administered at 3 months preoperatively and 3 years after surgery, while the third, the Bariatric Analysis and Reporting Outcome System (BAROS), was administered only postoperatively. Results: A total of 41 patients were included in the study. Statistically significant differences were found between the Moorehead-Ardelt Quality of Life Questionnaire II and QIGLI scores taken at both time points, across the entire cohort (p= 0.001 and p= 0.001, respectively); and between the results taken at 3 years postoperatively in the BAROS test (p= 0.001) for the entire cohort. There were no significant differences between Laparoscopic One Anastomosis Gastric Bypass and Laparoscopic Roux-en-Y gastric Bypass groups in the questionnaire scores (Moorehead-Ardelt Quality of Life Questionnaire II: p=0.526, QIGLI: p=0.990 and BAROS: p=0.753). Conclusions: Bariatric surgery improves quality of life in operated patients, without significant differences between Laparoscopic One Anastomosis Gastric Bypass and Laparoscopic Roux-en-Y gastric Bypass techniques. Patients undergoing bariatric surgery develop higher physical activity levels, and long-term improvements in the psychosocial domain are observed over time.
... Bariatric surgery today represents the most effective treatment for patients with severe obesity, making it possible to influence both weight loss and improved quality of life (QL) [1]. Currently, international guidelines recommend this procedure for individuals with a Body Mass Index (BMI) ≥ 40 kg/m 2 , as well as for those with a BMI ≥ 35 kg/m 2 associated with co-morbidity [2]. ...
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Purpose: To analyze the correlation between anxiety symptoms and perceived quality of life in women more than 24 months after undergoing bariatric surgery. Methods: Cross-sectional, descriptive and analytical study, carried out with women who underwent bariatric surgery after at least 24 months. To assess the level of anxiety symptoms, the Beck Inventory was used and to assess the perception of quality of life, the Item Short Form Healthy Survey was applied. Results: Of the 50 participants, 36.0% had reports indicative of moderate symptoms and 64.0% had severe symptoms of anxiety. The domains of quality of life that correlated with better perception were pain (p < 0.001), functional capacity (p = 0.013), general health status (p = 0.018), social aspects (p < 0.001), and mental health (p < 0.001). In linear regression, a significant inverse correlation was found between the general emotional component of quality of life and anxiety score (β = -0.546; CI -1.419; -0.559; p < 0.001) and between the general physical component of quality of life and anxiety score (β = -0.339; CI -0.899; -0.131; p = 0.010), both independent of weight regain and surgery time. Conclusions: It was observed that moderate to severe anxiety symptoms seem to interfere with the perception of quality of life, regardless of weight regain and surgery time.
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Introducción: La cirugía bariátrica es uno de los tratamientos más efectivos para el manejo de la obesidad. Por lo general el éxito se evalúa por la pérdida de peso, sin embargo, la calidad de vida de los pacientes debe ser considerada. Objetivo: Evaluar la calidad de vida en sujetos operados de cirugía bariátrica en el corto y largo plazo. Metodología: fueron invitados a participar pacientes operados de bypass gástrico y gastrectomía en manga que llevaran más de 2 años de operados. Se consideró corto y largo plazo a aquellos que llevaban menos de 5 años y más de 5 años de cirugía, respectivamente. Resultados: Fueron evaluados 271 sujetos, de los cuales 80,8% fueron mujeres, 55,7% tenía gastrectomía en manga y 87,8% llevaba más de 5 años de cirugía. Se observó una notable mejoría en la calidad de vida de pacientes bariátricos tanto a corto como a largo plazo, predominando las categorías Excelente y Muy buena respectivamente. Las áreas autoestima y física destacaron con mejores categorías (Ha mejorado notablemente). No se encontraron diferencias significativas en la calidad de vida entre pacientes de corto y largo plazo. Discusión: Una pérdida mayor al 50% del exceso de peso post cirugía bariátrica es considerada cómo éxito de la cirugía, sin embargo, cambios en la calidad de vida deben ser considerados. Conclusión: La calidad de vida debe ser considerada para medir éxito post cirugía bariátrica y no tan sólo la pérdida de peso.
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Introdução: a obesidade é uma doença com crescente incidência mundial, a qual acarreta impactos físicos, emocionais, psicossociais e funcionais nos pacientes. Assim, é inegável que a qualidade de vida da população nessa condição seja também alterada. Sabe-se que uma das opções terapêuticas para a obesidade é a cirurgia bariátrica, que reduz o excesso de peso, além de melhorar algumas comorbidades. Objetivo: correlacionar a qualidade de vida com a capacidade funcional de indivíduos submetidos à cirurgia bariátrica. Materiais e método: trata-se de um estudo transversal, descritivo e correlacional, com abordagem quantitativa, possível a partir da avaliação do questionário incluído no Protocolo Baros (Bariatric Analysis and Reporting Outcome System) e do HAQ (Health Assessment Questionnaire). Resultados: a média de respostas obtidas, no questionário Baros, foi de 4,35 (± 0,19), revelando que a qualidade de vida foi expressivamente avaliada de forma positiva; no HAQ, foi 0,29 (±0,13) e ambos foram correlacionados (-,371; p < 0,05). O item do Baros“percepção de si mesmo” mostrou-se correlacionado com quatro dos oito componentes do HAQ (-0,199, -0,203, -0,200, -0,201), revelando que a capacidade de realizar simples atividades do cotidiano influenciadiretamente no conceito que os pacientes têm de si. Conclusões: assim, conclui-se que a realização cirurgia bariátrica é bastante eficaz para a perda de peso e, consequentemente, para a redução das comorbidades, proporcionando maior desempenho na capacidade funcional e melhora na qualidade de vida.
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Introduction: nutritional deficiencies, hormonal changes and severe weight loss after Roux-en-Y Gastric Bypass (RYGB) can promote changes in bone metabolism which may lead to a reduction in bone mineral density (BMD). Objective: to investigate the prevalence of osteopenia/osteoporosis and factors associated with BMD in pre-menopausal women who underwent RYGB. Methodology: a cross-sectional study conducted with secondary data of patients followed-up in a specialized center for obesity treatment. Variables studied: biochemical and anthropometric data, body composition by multifrequency bioimpedance and BMD of the lumbar spine (LS), total femur (TF) and femur neck (FN) by dual-energy X-ray absorptiometry. For statistical analysis, the SPSS® software and a 5% significance level were utilized. Results: seventy-two (72) pre-menopausal women were evaluated. Mean age, BMI and mean post-surgery time was 38.7±6.5 years, 25.8±2.5 kg/m² and 13.1±1.7 months, respectively. The prevalence of osteopenia in at least one of the densitometry sites was 13.9%, with LS being the most frequent site. A lower LS BMD was associated with greater weight loss, higher percentage of body fat before surgery and lower post-surgery serum vitamin D levels. There was a positive correlation between skeletal muscle mass index adjusted for height in the pre-surgery period and LS BMD (r=0.361; p=0.010) and TF (r=0.404; p=0.004). Conclusion: a relevant prevalence of osteopenia was detected in pre-menopausal women after RYGB, mainly in the LS.
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ABE&M todos os direitos reservados. 875 review Bariatric surgery – An update for the endocrinologist Cirurgia bariátrica – Uma atualização para o endocrinologista ABSTRACT Obesity is a major public health problem, is associated with increased rates of mortality risk and of developing several comorbidities, and lessens life expectancy. Bariatric surgery is the most effective treatment for morbidly obese patients, reducing risk of developing new comorbidities, health care utilization and mortality. The establishment of centers of excellence with interdis-ciplinary staff in bariatric surgery has been reducing operative mortality in the course of time, improving surgical safety and quality. The endocrinologist is part of the interdisciplinary team. The aim of this review is to provide endocrinologists, physicians and health care providers crucial elements of good clinical practice in the management of morbidly obese bariatric surgi-cal candidates. This information includes formal indications and contraindications for bariatric operations, description of usual bariatric and metabolic operations as well as endoscopic tre-atments, preoperative assessments including psychological, metabolic and cardiorespiratory evaluation and postoperative dietary staged meal progression and nutritional supplementation follow-up with micronutrient deficiencies monitoring, surgical complications, suspension of medications in type 2 diabetic patients, dumping syndrome and hypoglycemia. Arq Bras Endocrinol Metab.
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The obesity is an universal disease of epidemic proportions and in a growing prevalence. It is one of the main public health problems and it will be inexorably the largest problem of the developing world. The morbid obesity is associated to serious diseases, reducing the life perspective, increasing the morbility and mortality. Several strategies of losing weight were proposed; however, the bariatric surgeries are today the most effective treatment for this disease. The BAROS is the most simple, practical and efficient method to evaluate the results in the bariatric surgeries. To compare five surgical techniques for the treatment of morbid obesity using BAROS. The sample is constituted of 102 patients submitted to Fobi-Capella (23 patients), Scopinaro (21 patients), duodenal switch (20 patients), vertical banded gastroplasty of Mason (15 patients) and the adjustable gastric band (23 patients), evaluated 12 months after the surgeries using BAROS. The analysis of the final result of BAROS for the classification demonstrated that good, very good and excellent results were obtained in 100% of the patients in the group of duodenal switch; 91,3% in Fobi-Capella; 85,7% in Scopinaro; 60% in Mason; and 56,5% in adjustable gastric band. The final result of BAROS for the total score demonstrated that the group of duodenal switch obtained 6,3 points; the Fobi-Capella 5,1 points; the Scopinaro 4,8 points; the Mason 3,0 points; and the adjustable gastric band 2,9 points (p<0,0001). The duodenal switch is the best technique for the surgical treatment of the morbid obesity, in the following 12 months post-surgical clinical procedures, according to BAROS.
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Background: Bariatric (weight loss) surgery for obesity is considered when other treatments have failed. The effects of the available bariatric procedures compared with medical management and with each other are uncertain. This is an update of a Cochrane review first published in 2003 and most recently updated in 2009. Objectives: To assess the effects of bariatric surgery for overweight and obesity, including the control of comorbidities. Search methods: Studies were obtained from searches of numerous databases, supplemented with searches of reference lists and consultation with experts in obesity research. Date of last search was November 2013. Selection criteria: Randomised controlled trials (RCTs) comparing surgical interventions with non-surgical management of obesity or overweight or comparing different surgical procedures. Data collection and analysis: Data were extracted by one review author and checked by a second review author. Two review authors independently assessed risk of bias and evaluated overall study quality utilising the GRADE instrument. Main results: Twenty-two trials with 1798 participants were included; sample sizes ranged from 15 to 250. Most studies followed participants for 12, 24 or 36 months; the longest follow-up was 10 years. The risk of bias across all domains of most trials was uncertain; just one was judged to have adequate allocation concealment.All seven RCTs comparing surgery with non-surgical interventions found benefits of surgery on measures of weight change at one to two years follow-up. Improvements for some aspects of health-related quality of life (QoL) (two RCTs) and diabetes (five RCTs) were also found. The overall quality of the evidence was moderate. Five studies reported data on mortality, no deaths occurred. Serious adverse events (SAEs) were reported in four studies and ranged from 0% to 37% in the surgery groups and 0% to 25% in the no surgery groups. Between 2% and 13% of participants required reoperations in the five studies that reported these data.Three RCTs found that laparoscopic Roux-en-Y gastric bypass (L)(RYGB) achieved significantly greater weight loss and body mass index (BMI) reduction up to five years after surgery compared with laparoscopic adjustable gastric banding (LAGB). Mean end-of-study BMI was lower following LRYGB compared with LAGB: mean difference (MD) -5.2 kg/m² (95% confidence interval (CI) -6.4 to -4.0; P < 0.00001; 265 participants; 3 trials; moderate quality evidence). Evidence for QoL and comorbidities was very low quality. The LRGYB procedure resulted in greater duration of hospitalisation in two RCTs (4/3.1 versus 2/1.5 days) and a greater number of late major complications (26.1% versus 11.6%) in one RCT. In one RCT the LAGB required high rates of reoperation for band removal (9 patients, 40.9%).Open RYGB, LRYGB and laparoscopic sleeve gastrectomy (LSG) led to losses of weight and/or BMI but there was no consistent picture as to which procedure was better or worse in the seven included trials. MD was -0.2 kg/m² (95% CI -1.8 to 1.3); 353 participants; 6 trials; low quality evidence) in favour of LRYGB. No statistically significant differences in QoL were found (one RCT). Six RCTs reported mortality; one death occurred following LRYGB. SAEs were reported by one RCT and were higher in the LRYGB group (4.5%) than the LSG group (0.9%). Reoperations ranged from 6.7% to 24% in the LRYGB group and 3.3% to 34% in the LSG group. Effects on comorbidities, complications and additional surgical procedures were neutral, except gastro-oesophageal reflux disease improved following LRYGB (one RCT). One RCT of people with a BMI 25 to 35 and type 2 diabetes found laparoscopic mini-gastric bypass resulted in greater weight loss and improvement of diabetes compared with LSG, and had similar levels of complications.Two RCTs found that biliopancreatic diversion with duodenal switch (BDDS) resulted in greater weight loss than RYGB in morbidly obese patients. End-of-study mean BMI loss was greater following BDDS: MD -7.3 kg/m² (95% CI -9.3 to -5.4); P < 0.00001; 107 participants; 2 trials; moderate quality evidence). QoL was similar on most domains. In one study between 82% to 100% of participants with diabetes had a HbA1c of less than 5% three years after surgery. Reoperations were higher in the BDDS group (16.1% to 27.6%) than the LRYGB group (4.3% to 8.3%). One death occurred in the BDDS group.One RCT comparing laparoscopic duodenojejunal bypass with sleeve gastrectomy versus LRYGB found BMI, excess weight loss, and rates of remission of diabetes and hypertension were similar at 12 months follow-up (very low quality evidence). QoL, SAEs and reoperation rates were not reported. No deaths occurred in either group.One RCT comparing laparoscopic isolated sleeve gastrectomy (LISG) versus LAGB found greater improvement in weight-loss outcomes following LISG at three years follow-up (very low quality evidence). QoL, mortality and SAEs were not reported. Reoperations occurred in 20% of the LAGB group and in 10% of the LISG group.One RCT (unpublished) comparing laparoscopic gastric imbrication with LSG found no statistically significant difference in weight loss between groups (very low quality evidence). QoL and comorbidities were not reported. No deaths occurred. Two participants in the gastric imbrication group required reoperation. Authors' conclusions: Surgery results in greater improvement in weight loss outcomes and weight associated comorbidities compared with non-surgical interventions, regardless of the type of procedures used. When compared with each other, certain procedures resulted in greater weight loss and improvements in comorbidities than others. Outcomes were similar between RYGB and sleeve gastrectomy, and both of these procedures had better outcomes than adjustable gastric banding. For people with very high BMI, biliopancreatic diversion with duodenal switch resulted in greater weight loss than RYGB. Duodenojejunal bypass with sleeve gastrectomy and laparoscopic RYGB had similar outcomes, however this is based on one small trial. Isolated sleeve gastrectomy led to better weight-loss outcomes than adjustable gastric banding after three years follow-up. This was based on one trial only. Weight-related outcomes were similar between laparoscopic gastric imbrication and laparoscopic sleeve gastrectomy in one trial. Across all studies adverse event rates and reoperation rates were generally poorly reported. Most trials followed participants for only one or two years, therefore the long-term effects of surgery remain unclear.
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A significant proportion of patients who undergo bariatric surgery fail to achieve enduring weight loss. Previous studies suggest that psychosocial variables affect postoperative outcome, although this subject is still considered unclear. The purpose of this study is to further investigate the impact of psychosocial variables on Roux-en-Y gastric bypass (RYGB) outcomes over long-term follow-up. Individuals eligible for bariatric surgery were evaluated using validated psychopathological scales and the Temperament and Character Inventory in a specialized clinic for bariatric treatment. Adult patients who had RYGB were selected for the study. Percent of excess weight loss (%EWL) was measured after surgery at 6 months, 1 year, 2 years, and on the last clinical observation. This study included 333 subjects who had RYGB. Before surgery, mean age was 35.4 years (±9.5) and mean BMI was 43.3 kg/m(2) (±4.8). Higher baseline age and BMI were associated with lower %EWL across endpoints, although this association diminished over time. Follow up at 2 years and on the last clinical observation demonstrated that lower scores on the persistence personality variable and lower body dissatisfaction before surgery predicted lower %EWL. Psychosocial variables and personality traits assessed during preoperative evaluation significantly predicted weight loss after bariatric surgery. Greater impact was observed in long-term follow-up at 2 years. These findings provide guidance in identifying patients at risk for worse outcomes and designing interventions to improve long-term weight loss.
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Importance: The prevalence of obesity and outcomes of bariatric surgery are well established. However, analyses of the surgery impact have not been updated and comprehensively investigated since 2003. Objective: To examine the effectiveness and risks of bariatric surgery using up-to-date, comprehensive data and appropriate meta-analytic techniques. Data sources: Literature searches of Medline, Embase, Scopus, Current Contents, Cochrane Library, and Clinicaltrials.gov between 2003 and 2012 were performed. Study selection: Exclusion criteria included publication of abstracts only, case reports, letters, comments, or reviews; animal studies; languages other than English; duplicate studies; no surgical intervention; and no population of interest. Inclusion criteria were a report of surgical procedure performed and at least 1 outcome of interest resulting from the studied surgery was reported: comorbidities, mortality, complications, reoperations, or weight loss. Of the 25,060 initially identified articles, 24,023 studies met the exclusion criteria, and 259 met the inclusion criteria. Data extraction and synthesis: A review protocol was followed throughout. Three reviewers independently reviewed studies, abstracted data, and resolved disagreements by consensus. Studies were evaluated for quality. Main outcomes and measures: Mortality, complications, reoperations, weight loss, and remission of obesity-related diseases. Results: A total of 164 studies were included (37 randomized clinical trials and 127 observational studies). Analyses included 161,756 patients with a mean age of 44.56 years and body mass index of 45.62. We conducted random-effects and fixed-effect meta-analyses and meta-regression. In randomized clinical trials, the mortality rate within 30 days was 0.08% (95% CI, 0.01%-0.24%); the mortality rate after 30 days was 0.31% (95% CI, 0.01%-0.75%). Body mass index loss at 5 years postsurgery was 12 to 17. The complication rate was 17% (95% CI, 11%-23%), and the reoperation rate was 7% (95% CI, 3%-12%). Gastric bypass was more effective in weight loss but associated with more complications. Adjustable gastric banding had lower mortality and complication rates; yet, the reoperation rate was higher and weight loss was less substantial than gastric bypass. Sleeve gastrectomy appeared to be more effective in weight loss than adjustable gastric banding and comparable with gastric bypass. Conclusions and relevance: Bariatric surgery provides substantial and sustained effects on weight loss and ameliorates obesity-attributable comorbidities in the majority of bariatric patients, although risks of complication, reoperation, and death exist. Death rates were lower than those reported in previous meta-analyses.
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Background Binge-eating disorder (BED) may be associated with unsatisfactory weight loss in obese patients submitted to bariatric procedures.This study aims to investigate whether the presence of binge eating before Roux-en-Y gastric bypass (RYGBP) influences weight outcomes. Methods In a prospective design, 216 obese patients (37 males, 178 females, BMI––5.9 ±–.0 kg/m2) were assessed for the lifetime prevalence of BED and classified at structured interview into 3 subgroups: no binge eating (NBE––3), sub-threshold binge eating (SBE––29), and binge-eating disorder (BED––4). All patients were encouraged to take part in a multidisciplinary program following surgery, and weight loss at follow-up was used as the outcome variable. Results At 1-year follow-up, NBE patients (n––1) showed percent excess BMI loss (%EBL) significantly higher than SBE patients (n––12) (P––.027), although this effect was not significantly different between NBE and BED patients (n––4). At 2-year follow-up, NBE patients (n––3) showed %EBL higher than SBE (n––4) (P––.003) and BED patients (n––4) (P–lt;–.001). Nevertheless, we found no significant weight loss differences between SBE (subclinical) and BED (full criteria) patients at any period of followup. Preliminary results at 3-year follow-up suggest that such an effect may be enduring. Conclusion The presence of a history of binge eating prior to treatment is associated with poorer weight loss in obese patients submitted to RYGBP. Because BED is highly prevalent in obese patients seeking bariatric surgery, its early recognition and treatment may be of important clinical value.
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The lack of standards for comparison of results was identified by the NIH Consensus Conference panelists as one of the key problems in evaluating reports in the surgical treatment of severe obesity. The analysis of outcomes after bariatric surgery should include weight loss, improvement in comorbidities related to obesity, and quality-of-life (QOL) assessment. Definitions of success and failure should be established and the presentation of results standardized. A survey among experienced bariatric surgeons was conducted to study the reporting of results. The concept of evaluating outcomes by using a scoring system was introduced in 1997 and has now been refined further. Psychologists with expertise in bariatrics were asked to recommend a disease-specific instrument to analyze QOL after surgery. The system defines five outcome groups (failure, fair, good, very good, and excellent), based on a scoring table that adds or subtracts points while evaluating three main areas: percentage of excess weight loss, changes in medical conditions, and QOL. To assess changes in QOL after treatment, this method incorporates a specifically designed patient questionnaire that addresses self-esteem and four daily activities. Complications and reoperative surgery deduct points, thus avoiding the controversy of considering reoperations as failures. The Bariatric Analysis and Reporting Outcome System (BAROS) analyzes outcomes in a simple, objective, unbiased, and evidence-based fashion. It can be adapted to evaluate other forms of medical intervention for the control of obesity. This method should be considered by international organizations for the adoption of standards for the outcome assessment of bariatric treatments, and for the comparison of results among surgical series. These standards could also be used to compare the long-term effects of surgery with nonoperative weight loss methods.
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Weight loss and psychosocial events have been compared between low calorie conventional diet (n = 11) or following obesity surgery (n = 17). Interviews were >/= 9 months following initiation of treatment. After surgery significantly less hunger was experienced (surgery 76% [13/17] vs diet 18% [2/11] p < 0.01) and less will-power was required to stop eating (surgery 88% [15/17] vs diet 27% [3/11] p < 0.001). More dieters stopped eating because of 'figure and health' (surgery 12 % [2/17] vs diet 64 % [7/11 ] p < 0.01) whereas postoperative patients stopped due to vomit avoidance (surgery 53% [9/17] vs diet 0% [0/11] p </= 0.05). More of the postoperative group were employed (surgery 76% [13/17] vs diet 18% [2/11) p < 0.005). Following surgery there were subjective appearance improvements (surgery 94% [15/16] vs diet 50% [5/10] p < 0.01) and fewer social limitations (surgery 69% [11/16] vs diet 27% [3/11] p </= 0.05). Physical activity improved (surgery 73% [11/15] vs diet 18% [2/11] p < 0.01). Although both groups continue to feel 'fat' at times, more dieters think other people view them as obese (surgery 35% [6/17] vs diet 91% [10/11] p </= 0.05). Satisfaction with weight control method was greater following surgery (surgery 100% [16/16] vs diet 33% [3/9] p < 0.005). Enforced behavior modification (vomit avoidance) is the mechanism of action of gastric restrictive surgery. Physical activity increases, and satisfaction with weight loss method is greater, after surgery. Employment is greater (probably self selection) in the post-surgical group. We found that comparing >/= 9 months following surgery or beginning a conventional diet, the morbidly obese have a more positive response to surgery.