Mauer A. A. Gonçalves

CEDUMED - Faculty of Medicine; Agostinho Neto University

Introduction: Studies on the normal electrocardiogram limits in African populations are limited, especially in sub-Saharan Africa. There is no literature describing normal ECG limits in Angolans. Objectives: The aim of this study is to establish the normal ECG limits for adult Angolans, without established heart disease, stratified by gender and a...

Background Hypertension can be detected at the primary health-care level and low-cost treatments can effectively control hypertension. We aimed to measure the prevalence of hypertension and progress in its detection, treatment, and control from 1990 to 2019 for 200 countries and territories. Methods We used data from 1990 to 2019 on people aged 30...

Aims To identify the prevalence of major and minor electrocardiographic abnormalities and their association with the main risk factors for cardiovascular disease in a population in the province of Bengo, northern Angola. Methods A cross-sectional community-based study was conducted and a representative random sample stratified by sex and age was s...

Introduction: Atrial fibrillation is the most common sustained arrhythmia of clinical significance in the adult population, representing an important public health problem. Literature on the prevalence of atrial fibrillation in Angola is unavailable. Objective: The goal of this paper is to determine the prevalence of atrial fibrillation in a popula...

An outbreak of an undiagnosed disease in DR Congo, reported by WHO, has caused 406 cases and 31 deaths, primarily in malnourished children under 5. Symptoms include flu-like signs and anemia. Its spread risks crossing porous borders, particularly into Angola. Immediate measures are needed: restricting cross-border movement, enhancing surveillance,...

Coronary artery anomalies (CAAs) are rare and challenging, with increased diagnoses due to advanced cardiovascular imaging, even in low-income countries where diagnostic and therapeutic approaches can be difficult. This case report details a 65-year-old Black male patient with a history of hypertension and smoking who presented with a myocardial in...

Sickle Cell Disease (SCD) is marked by episodes of acute vaso-occlusive crises, severe anemia, acute chest syndrome, multi-organ damage and stroke, among others. Pregnancy in these patients is associated with an increased risk of adverse outcomes, such as intrauterine growth restriction, perinatal and maternal mortality, low birth weight, eclampsia...

Background Diabetes can be detected at the primary health-care level, and effective treatments lower the risk of complications. There are insufficient data on the coverage of treatment for diabetes and how it has changed. We estimated trends from 1990 to 2022 in diabetes prevalence and treatment for 200 countries and territories. Methods We used da...

Background Adiposity can be measured using BMI (which is based on weight and height) as well as indices of abdominal adiposity. We examined the association between BMI and waist-to-height ratio (WHtR) within and across populations of different world regions and quantified how well these two metrics discriminate between people with and without hyper...

A 51-year-old man, hypertensive and HIV-positive diagnosed 3 months ago, presenting to the emergency department with heart failure. Imaging studies revealed a right sinus of Valsalva aneurysm dissecting into the interventricular septum and right atrium

A 41-year-old Black male with a history of hypertension was involved in a car accident, after which he exhibited symptoms such as slow and incoherent speech, unstable gait, dizziness, drowsiness, slow thinking, and loss of strength in his limbs. Despite multiple negative alcohol tests, his symptoms mimicked those of acute alcohol intoxication. Upon...

A 41-year-old man, known to have hypertension, who was admitted to the emergency room after a car accident. He reported having a “feeling of being drunk, but that he had not consumed alcohol” and complained of dizziness, drowsiness, slow thinking, loss of strength in the limbs, and ataxia. Brain imaging showed features compatible with a recent isch...

In 2017, a survey revealed that 18% of the 33 participating African countries had no registered cardiologists., Across Africa, there are approximately 2000 registered cardiologists for a population of 1.2 billion inhabitants. There is a scarcity of cardiac surgery and interventional cardiology services, with around 22 cardiothoracic centers in Afri...

Summary Background Underweight and obesity are associated with adverse health outcomes throughout the life course. We estimated the individual and combined prevalence of underweight or thinness and obesity, and their changes, from 1990 to 2022 for adults and school-aged children and adolescents in 200 countries and territories. Methods We used data...

The definition of a medical specialty is important both for the student's future professional career as well as for the diversity of specialties and the number of professionals that will make up a given health system. Identify the areas of activity preferred by medical school specialists and compare them with government needs. Methods: A multicente...

The definition of a medical specialty is important both for the student’s future professional career as well as for the diversity of specialties and the number of professionals that will make up a given health system. Identify the areas of activity preferred by medical school specialists and compare them with government needs. Methods: A multicente...

A 36-year-old male patient presented with dyspnea, fatigue, and pre-syncope episodes during moderate exertion. Relevant history included surgery for a subvalvular mitral aneurysm (SMA) performed 14 years earlier. Although surgery was done suspecting a type A aortic aneurysm, the diagnosis wasn't confirmed intraoperatively. A 64-slice gated CT confi...

Background: Tobacco use accelerates atherosclerosis and is one of the predictors of death from ischemic heart disease, arrhythmias, heart failure, and sudden death. A new non-invasive parameter, the Index of Cardiac Electrophysiological Balance (iCEB) between depolarization and repolarization of the action potential, was considered a new biomarker...

Fasting plasma glucose (FPG) and hemoglobin A1c (HbA1c) are both used to diagnose diabetes, but these measurements can identify different people as having diabetes. We used data from 117 population-based studies and quantified, in different world regions, the prevalence of diagnosed diabetes, and whether those who were previously undiagnosed and de...

Acute ascending aortic dissection is an uncommon disease that causes tragic loss of life if not treated as an emergency. An 82-year-old female, with a history of arterial hypertension, dyslipidemia and chronic venous insufficiency, was admitted to the emergency department (ED) of the Luanda Medical Center complaining of excruciating chest pain radi...

O Aneurisma do seio de valsava (ASV) e o pseudoaneurisma na região do corpo fibroso entre as válvulas mitral e aórtica (tambem conhecida como fibrosa intervalvar mitro-aórtica), são patologias cardíacas raras, ocorrendo em separado, em menos de 1% dos doentes submetidos a cirurgia cardíaca, na sua maioria em homens. Os ASV congénitos podem estar as...

A Sociedade Angolana de doenças cardiovasculares (SADCV) criada em Setembro de 2012, teve a iniciativa de organizar mais um Congresso, desta vez o VI na sua história. Trata-se de um evento que reuniu profissionais ligados a cardiologia: cardiologistas, cirurgiões, técnicos, enfermeiros e estudantes, com o objectivo de debater temas relacionados à c...

Introdução e objetivos: Em todo o mundo, a baixa ingestão de frutas e vegetais contribui significativamente para grande incidência de doenças, incluindo as doenças cardiovasculares. A Organização Mundial da Saúde recomenda uma ingestão de um mínimo de 400g ou cinco porções de frutas e vegetais por dia para a prevenção de doenças crónicas, como doen...

Introdução: A angiotomografia computarizada das artérias coronárias é uma modalidade da tomografia computadorizada, que permite o estudo tridimensional das artérias coronárias. É um exame não invasivo de alto valor preditivo negativo e está indicado para o diagnóstico de doença arterial coronária aterosclerótica e não aterosclerótica. O seu uso tem...

Introduction: Atrial fibrillation (AF) is the most common sustained arrhythmia in the adult population. The objective of this research is to determine the frequency, etiology, evolution, treatment, and evolution of patients diagnosed with AF admitted for heart failure (HF) in a tertiary hospital in Luanda, Angola. Methods: This is a descriptive, cr...

Prosthetic valve thrombosis is a serious complication of valve replacement associated with a high mortality rate. Stroke may be the first symptom of prosthetic valve thrombosis. We present the case of a patient who visited the emergency department with symptoms of dysarthria and left hemiparesis. An examination revealed an ischemic stroke with hemo...

Objective We aimed to evaluate the status of the Index of Cardiac Electrophysiological Balance (iCEB) in subjects with habitual cigarette smoking compared to non-smokers in apparently healthy Angolans. Methods The data came from the CardioBengo study, a cross-sectional community-based study, from which a random sample of individuals aged between 15...

Coronary artery calcium is a component of atherosclerosis and a marker for the presence of coronary artery disease (CAD). It can be quantified based on non-contrast computed tomogra-phy (CT) using coronary calcium score (CCS) according to the Agatston method. This study aimed to assess the prevalence of CAD in a population with a zero CCS, using 64...

Abstract: We report the case of a 82-year-old woman, known to have hypertension, who was admitted to the emergency department of Luanda Medical Center for chest pain 24 hours after an episode of commercial aircraft depressurization and whose thoraco-abdominal CT revealed a Stanford type A acute aortic dissection. Key clinical message: Elderly patie...

Unlabelled: This article aims to study the prevalence of coronary artery calcification and associated factors in a multiethnic population in Angola. Methods: A descriptive, cross-sectional observational study was carried out in a private clinic in Angola. For this purpose, information was collected from sociodemographic and biological data. The...

The Foundation for Scientific and Technological Development (FUNDECIT), in partnership with the Center for Advanced Studies in Education and Medical Training (CE-DUMED) of the Faculty of Medicine of Agostinho Neto University (FMUAN), took the initiative to organize the Workshop on Integrity and Ethics in Scientific Research. The event brought toget...

Optimal growth and development in childhood and adolescence is crucial for lifelong health and well-being1–6 . Here we used data from 2,325 population-based studies, with measurements of height and weight from 71 million participants, to report the height and body-mass index (BMI) of children and adolescents aged 5–19 years on the basis of rural an...

In Angola, coronary artery disease (CAD) has increased in prevalence in recent years. This study aims to evaluate the additional value of the coronary calcium score (CCS) to conventional risk factors (CRF) in predicting the presence of CAD. Results: This study comprises 204 patients. The mean age was 56.46±9.19 years. 123(60.3%) patients are male....

A razão conta ou é só parte da equação?

This article aims to study the etiological and clinical profile of acute heart failure in Angola and to identify the predictors associated with in-hospital mortality. Methods: A descriptive, observational, cross-sectional study was carried out in a tertiary public hospital in Angola. Information on demographic and biological data was collected. The...

The present article describes the prevalence of coronary artery anomalies (CAAs) in patients undergoing coronary CT angiography at a private clinic in Luanda, Angola, and the clinical and angiotomographic characteristics of the two patients with CAAs. These anomalies are uncommon and constitute a significant challenge in resource‐poor countries.

Resumo apresentado no X Congresso de Humanização e Bioética, e IV Congresso Internacional Ibero-Americano de Bioética

Background Studies on the electrocardiogram findings in African pregnant women are limited. There is no information available in the literature on the electrocardiographic parameters of pregnant Angolan women. Objectives The aim of this study was to describe electrocardiographic findings in women with normal pregnancies in Bengo Province, Angola....

Malaria is a parasitic disease that represents a serious public health problem in developing countries, especially Plasmodium falciparum malaria due to its severity and mortality. Cardiac involvement, although reported on few occasions, has been revealed to be more frequent and lethal than believed. Among the main cardiovascular manifestations of m...

Introduction: The presence of changes in the resting electrocardiogram (ECG) is an independent factor for the onset of coronary artery disease and is associated with an increased mortality rate and increased risk for cardiovascular disease. The importance of identifying electrocardiographic changes and their relationship with cardiovascular disease...

Background: The importance of identifying electrocardiographic changes and their relationship to cardiovascular disease has been extensively studied in the Caucasian population and in African Americans. The presence of abnormalities in the resting electrocardiogram is associated as an independent factor for the onset of coronary artery disease and...

Os antigos romanos afirmavam: "Verba volant, scripta manent"! (As palavras voam, os escritos permanecem!). Pautados por este pensamento, foi com imensa alegria que aceitamos o desafio de lançar pela primeira vez um livro com os resumos do Congresso Angolano de Cardiologia e Hipertensão. O V Congresso Angolano de Cardiologia e Hipertensão aconteceu...

Introdução: Na área de saúde, o grau de satisfação dos profissionais determina a qualidade de serviço e a satisfação dos pacientes.Objectivo: Avaliar os factores associados à insatisfação em médicos que trabalham em unidades hospitalares de nível terciário, em Luanda, Angola.Material e Métodos: Estudo transversal, com uma amostra de médicos das pri...

O aneurisma do seio de Valsalva (ASV) é um defeito cardíaco incomum, associado à separação ou à falta de fusão entre a camada média da aorta e o anel fibroso da válvula aórtica. Este artigo descreve o caso de um jovem de 19 anos com história que evolui há cerca de 2 meses caracterizada por dificuldade respiratória, cansaço fácil, ortopneia, dispnei...

A Dextrocardia é uma condição rara, geralmente encontrada de forma acidental e em associação com outras anormalidades congénitas, como por exemplo o coração univentricular, a prevalência de anatomia univentricular em pacientes com dextrocardia é de cerca de 16 a 25%. O coração univentricular constitui um conjunto de alterações tipicamente associada...

A Tetralogia de Fallot é a cardiopatia congénita cianótica mais comum, que se tornou uma das primeiras patologias a ter sido corrigida cirurgicamente. As cardiopatias congênitas no adulto se apresentam geralmente de duas formas: as que chegam à idade adulta sem correcção e as que sobreviveram à cirurgia realizada em etapas anteriores, quer no lacte...

Introdução: A gravidez está associada a importantes alterações hemodinâmicas e cardíacas, características desse período. Os estudos sobre os achados eletrocardiográficos em mulheres grávidas africanas são limitados, especialmente na África Subsaariana. Há uma escassez desse tipo de dados entre mulheres grávidas angolanas. Objectivo: O objectivo des...

A fibrilhação auricular é a arritmia sustentada mais prevalente na população adulta com significado clínico, representando um importante problema de saúde pública, pelos seus efeitos na esperança de vida e na carga de doença. Constitui uma das complicações cardiovasculares em doentes com pneumonia adquirida na comunidade (PAC) O objectivo do presen...

RESUMO Introdução: Na área de saúde, o grau de satisfação dos profissionais determina a qualidade de serviço e a satisfação dos pacientes. Objectivo: Avaliar os factores associados à insatisfação em médicos que trabalham em unidades hospitalares de nível terciário, em Luanda, Angola. Material e Métodos: Estudo transversal, com uma amostra de médico...

Appendix A. Supplementary data

No dia 07 de Agosto de 2020, foram actualizadas as medidas excepcionais e temporárias a vigorar durante a situação de calamidade pública declarada por força da pandemia COVID-19 em Angola (Diário da República, I série, nº 120, publicado - 07 de Agosto de 2020), de entre estas, destacamos o ponto 2 do artigo 4º que diz: “É igualmente obrigatório o u...

Elevated blood pressure (BP) is a growing burden worldwide, leading to over 10 million deaths each year. May Measurement Month (MMM) is a global initiative aimed at raising awareness of high BP and to act as a temporary solution to the lack of screening programes worldwide. There is increasing prevalence of hypertension in developing countries lead...

Either the pseudoaneurysm of mitral-aortic intervalvular fibrosa or the aneurysms of Valsalva are rare cardiac conditions. Con-comitant diagnosis in the same patient is extremely rare with only one case report. Herein, we described an extremely rare case of concomitant pseudoaneurysm of mitral-aortic intervalvular fibrosa and aneurysm of left sinus...

INTRODUÇÂO: O papel atribuído à adiposidade central nos últimos anos denota particular importância no desenvolvimento de doenças crónicas, especialmente cardiovasculares. Algumas medidas antropométricas simples e práticas, dentre elas a razão cintura/quadril (RCQ), pode ser utilizada para detectar indivíduos com elevada probabilidade de desenvolver...

A avaliação do risco cardiovascular no pré-operatório das cirurgias de artroplastia da anca e joelho é mandatória para optimizar as comorbidades pré-existentes e descobrir condições médicas ainda não diagnosticadas, uma vez que estas acarretam um risco acrescido de complicações cardíacas e acidentes embólicos. OBJECTIVOS: Identificação e correcção...

IntroductionAfrican–Americans present higher prevalence of left ventricular hypertrophy (LVH) when compared with white populations. However, there is a lack of information about the prevalence and determinants of LVH in black individuals living in Africa. MethodsA cross-sectional study was performed with a non-probabilistic sample comprised of 609...

PALAVRAS-CHAVE: Taquicardia paroxística supraventricular, aneurisma submitral. O aneurisma submitral é uma doença cardíaca bastante reconhecida, mas relativamente desconhecida. Acreditou-se durante muito tempo que era uma condição que ocorria, quase exclusivamente, em indivíduos africanos de raça negra. Apesar de ainda existir esta ideia de prevalê...

Methods The incidence of obesity is increasing worldwide, especially in countries with accelerated economic growth. We determined the prevalence of and associations between overweight/ obesity and cardiovascular risk factors in pre-pubertal (seven- to 11-year-old) schoolchildren (both genders, n = 198) in Luanda, Angola. Biochemical (fasting blood)...

INTRODUÇÃO: A hipertensão arterial (HTA) é doença cardiovascular (DCV) grave com elevada prevalência e a maior causa de morbi-mortalidade no mundo em particular na população negra. Atinge adultos cada vez mais jovens e afeta cerca de um quarto da população adulta mundial. Na África Subsaariana a situação é mais preocupante devido a transição epidem...

Cardiovascular diseases are the leading cause of death in the majority of developed and developing countries. African countries are currently facing an increase in both cardiovascular and transmitted diseases. In addition, cardiovascular risk varies among different socioeconomic groups. Thus, we determined the prevalence of modifiable cardiovascula...

A high carotid-femoral pulse wave velocity (PWV) has been related to increased cardiovascular morbidity and mortality, but has not been previously evaluated in amputees. The aim of this study was to compare PWV between amputees and nonamputees. In this cross-sectional study, data were collected from 60 male lower limb amputees and 86 male age-match...

A persistência da veia cava superior esquerda é uma anomalia congénita vascular relativamente pouco comum mas importante. Resulta da falha embriológica na regressão de parte da veia cardinal esquerda. Apesar de frequentemente ocorrer de forma isolada, a persistência da veia cava superior esquerda encontra-se por vezes associada a outros defeitos ca...