Publications by authors named "Dores Helder"

Sports cardiology is an evolving field in cardiology, with several topics remaining controversial. Beyond the several well-known benefits of regular exercise practice, the occurrence of adverse clinical events during sports in apparently healthy individuals, especially sudden cardiac death, and the described long-term adverse cardiac adaptations associated to high volume of exercise, remain challenging. The early identification of athletes with increased risk is critical, but the most appropriate preparticipation screening protocols are also debatable and a more personalized evaluation, considering individual and sports-related characteristics, will potentially optimize this evaluation.

View Article and Find Full Text PDF
Article Synopsis
  • Sudden cardiac death (SCD) in athletes is a serious issue, and this study aimed to analyze SCD cases in Portugal over the last 20 years to better understand its incidence.
  • The research included a comprehensive search for cases and involved contacting sports federations, identifying 42 instances of SCD, predominantly among males aged around 27, with most cases occurring in outdoor sports during competitions.
  • The overall incidence of SCD was low, at 0.39 cases per 100,000 athletes per year, highlighting the need for better data collection practices to understand the causes and contexts of these tragic events.
View Article and Find Full Text PDF

The recent pandemic ushered in a marked surge in the adoption of digital health technologies (DHTs), necessitating remote approaches aiming to safeguard both patient and healthcare provider well-being. These technologies encompass an array of terms, including e-health, m-health, telemedicine, wearables, sensors, smartphone apps, digital therapeutics, virtual and augmented reality, and artificial intelligence (AI). Notably, some DHTs employed in critical healthcare decisions may transition into the realm of medical devices, subjecting them to more stringent regulatory scrutiny.

View Article and Find Full Text PDF

Background: Acute coronary syndrome (ACS), specifically ST-segment elevation myocardial infarction is a major cause of morbidity and mortality throughout Europe. Diagnosis in the acute setting is mainly based on clinical symptoms and physician's interpretation of an electrocardiogram (ECG), which may be subject to errors. ST-segment elevation is the leading criteria to activate urgent reperfusion therapy, but a clear ST-elevation pattern might not be present in patients with coronary occlusion and ST-segment elevation might be seen in patients with normal coronary arteries.

View Article and Find Full Text PDF

Atherosclerotic cardiovascular disease (ASCVD) remains the major cause of premature death and disability; effective cardiovascular (CV) risk prevention is fundamental. The World Heart Federation (WHF) Cholesterol Roadmap provides a framework for national policy development and aims to achieve ASCVD prevention. At the invitation of the WHF, a group of experts from the Portuguese Society of Cardiology (SPC), addressed the cholesterol burden at nationally and discussed possible strategies to include in a Portuguese cholesterol roadmap.

View Article and Find Full Text PDF

Despite the well-known health benefits of regular physical activity, sedentary behavior and physical inactivity remain a real global pandemic. Exercise is associated with increased life expectancy, improved quality of life and prevention of multiple diseases. Although less implemented in practice compared to aerobic exercise, recent evidence shows that resistance exercise (RE) is also responsible for various benefits, including improvements in body composition, control of several cardiovascular (CV) risk factors, and reduction of CV outcomes.

View Article and Find Full Text PDF

Cardiopulmonary exercise testing (CPET) provides a noninvasive and integrated assessment of the response of the respiratory, cardiovascular, and musculoskeletal systems to exercise. This information improves the diagnosis, risk stratification, and therapeutic management of several clinical conditions. Additionally, CPET is the gold standard test for cardiorespiratory fitness quantification and exercise prescription, both in patients with cardiopulmonary disease undergoing cardiac or pulmonary rehabilitation programs and in healthy individuals, such as high-level athletes.

View Article and Find Full Text PDF

Introduction And Objectives: The association between exercise and coronary atherosclerosis still remains unclarified. We aimed to analyze the prevalence of high coronary atherosclerotic burden in veteran athletes, considering cardiovascular (CV) risk and volume of exercise.

Methods: A total of 105 asymptomatic male veteran athletes (48±5.

View Article and Find Full Text PDF

Introduction And Objectives: Cardiac rehabilitation (CR) is a central component in the management of cardiovascular disease. While its potential benefits have been extensively explored and confirmed, its implementation is still suboptimal, due to various possible barriers. This study aimed to assess training and attitudes concerning CR among physicians in a Portuguese setting.

View Article and Find Full Text PDF

Background: Long COVID is a condition where symptoms or complications persist beyond 3 months after COVID-19 infection. Although most athletes experience mild symptoms, those involved in sports with higher cardiovascular demands can develop long COVID, which can negatively impact sports performance. This narrative review aimed to analyze the long COVID in athletes, especially cardiovascular effects; to alert medical and sporting community for the clinical aftermaths of COVID-19, focusing on physical activity; and to discuss the potential return-to-play strategies for these athletes.

View Article and Find Full Text PDF

Introduction And Objectives: Childhood offers an excellent window of opportunity to start interventions to promote behavioral changes before unhealthy lifestyles become established, leading to cardiovascular diseases. The goal of this pilot educational project for children is the promotion of healthy lifestyles and cardiovascular health.

Methods: This project was implemented in 4th grade children and included teacher-led classroom activities, a lesson given by a cardiologist and a practical lesson with dietitians.

View Article and Find Full Text PDF

Background: Although the 12‑lead electrocardiogram (ECG) is abnormal in most patients with hypertrophic cardiomyopathy (HCM), some present normal ECG. This study aimed to analyse the baseline characteristics, clinical presentation and outcomes of HCM patients with normal ECG and to compare them with those with abnormal ECG.

Methods And Results: Baseline characteristics, clinical presentation, data from complementary exams and clinical outcomes of 1070 consecutive patients included in the Portuguese Registry of HCM (Pro-HCM registry) were compared between two groups of patients: normal Vs.

View Article and Find Full Text PDF

Global warming is a result of the increased emission of greenhouse gases. The consequences of this climate change threaten society, biodiversity, food and resource availability. The consequences include an increased risk of cardiovascular (CV) disease and cardiovascular mortality.

View Article and Find Full Text PDF

Air pollution is one of the main environmental risk factors for health and is linked to cardiovascular diseases, which are the leading cause of mortality worldwide. In this position paper, we discuss the main air pollutants and how they can promote the development of cardiovascular disease or cardiovascular events. We also summarise the main evidence supporting the association between air pollution and cardiovascular events, such as coronary events (acute coronary syndromes/myocardial infarction; chronic coronary syndromes), stroke, heart failure and mortality.

View Article and Find Full Text PDF

Objective: The aim of this study was to investigate the changes in 24-h heart rate variability and aerobic fitness, and their associations, in female soccer players during the preseason period.

Methods: Sixteen players were assessed (24-h HRV and Yo-Yo Intermittent Recovery Test, level 1 [YYIR1]) before and after 4 weeks of preseason. The relationship between R-R24h length and high-frequency oscillations (HF24h) was analyzed by a quadratic regression model (revealing or not saturation of vagal activity) assessed 48-h before (PRE-preseason) and 48-h after (POST-preseason) the preseason period.

View Article and Find Full Text PDF

Anomalous origin of the right coronary artery from the opposite sinus (right-ACAOS) with interarterial course (IAC) has been associated with increased risk of sudden cardiac death (SCD). Widespread use of coronary computed tomography angiography (CCTA) has led to increased recognition of this condition, even among healthy individuals. Our study sought to examine the prevalence, anatomical characteristics, and outcomes of right-ACAOS with IAC in patients undergoing CCTA for suspected coronary artery disease (CAD).

View Article and Find Full Text PDF

To describe cardiac remodeling in a population of male master athletes evaluated by transthoracic echocardiography and to analyse its relationship with several exercise-related characteristics. A total of 105 male master athletes aged ≥ 40 years old, mostly involved in endurance sports (81.0%) with a median training-volume of 66 [44; 103] METs/h/week, were studied.

View Article and Find Full Text PDF

Introduction: Coronary artery calcium (CAC) scoring is used for both cardiovascular risk reclassification and as a gatekeeper for coronary computed tomography angiography (CCTA). The aims of this study were to assess to what extent CAC score results can reclassify the cardiovascular risk of patients without obstructive coronary artery disease (CAD) on CCTA, and to measure the proportion of these patients whose primary prevention medication is changed after the exam.

Methods: In a retrospective analysis of a multicenter registry of individuals who underwent CCTA for suspected CAD during a two-year period, the Systematic COronary Risk Evaluation (SCORE) and Multi-Ethnic Study of Atherosclerosis (MESA) risk scores were calculated for each individual.

View Article and Find Full Text PDF