Resultados: 9

Diagnostic accuracy of artificial-intelligence-based electrocardiogram algorithm to estimate heart failure with reduced ejection fraction: a systematic review and meta-analysis

Curr. probl. cardiol; 50 (4), 2025
INTRODUCTION: AI-based ECG has shown good accuracy in diagnosing heart failure. However, due to the heterogeneity of studies regarding cutoff points, its precision for specifically detecting heart failure with left ventricle reduced ejection fraction (LVEF <40 %) is not yet well established. What is the ...

The role of cardiac magnetic resonance imaging during pregnancy - a challenging early diagnosis of a congenital heart condition

DESCRIPTION OF CLINICAL PRESENTATION: Congenital heart defects affect, approximately, 1% of the population and standard echocardiography can have limited diagnostic accuracy in certain cases. Fetal cardiac magnetic resonance (fCMR) has potential to clarify anatomic information, improving prenatal diagnos...

Adaptive servo-ventilation for sleep-disordered breathing in patients with heart failure with reduced ejection fraction (ADVENT-HF): a multicentre, multinational, parallel-group, open-label, phase 3 randomised controlled trial

Lancet Respir. Med; 12 (2), 2024
BACKGROUND: In patients with heart failure and reduced ejection fraction, sleep-disordered breathing, comprising obstructive sleep apnoea (OSA) and central sleep apnoea (CSA), is associated with increased morbidity, mortality, and sleep disruption. We hypothesised that treating sleep-disordered breathing...

Multifaceted strategy based on automated text messaging after a recent heart failure admission: the MESSAGE-HF Randomized Clinical Trial

JAMA cardiol. (Online); 9 (2), 2024
IMPORTANCE: Readmissions after an index heart failure (HF) hospitalization are a major contemporary health care problem. OBJECTIVE: To evaluate the feasibility and efficacy of an intensive telemonitoring strategy in the vulnerable period after an HF hospitalization. DESIGN, SETTING, AND PARTICIPANTS: Thi...

Left atrial strain as a predictor of left ventricular filling pressures in coronary artery disease with preserved ejection fraction: a comprehensive study with left ventricular end-diastolic and pre-atrial contraction pressures

Assessing left ventricular (LV) filling pressure (LVFP) is challenging in patients with coronary artery disease (CAD) and preserved LV ejection fraction (LVEF). We aimed to correlate left atrial strain (LAS) with two invasive complementary parameters of LVFP and compared its accuracy to other echocardiog...

Paradigmas no diagnóstico da trabeculação excessiva do ventrículo esquerdo: relato de caso

Arq. bras. cardiol; 120 (5 supl.3), 2023
INTRODUÇÃO: A prática regular e intensa de exercício físico pode provocar adaptações cardíacas fisiológicas em níveis estrutural, elétrico, funcional e periférico. O diagnóstico diferencial entre coração de atleta e patologias se faz necessário e tem se tornado desafiador. Em estudos com ...

Three and two dimensional cardiac mechanics by speckle tracking are predictors of outcomes in chagas heart disease

ABSTRACT: Chagas disease (CD) is a neglected infectious disease associated with early mortality and substantial disability. Three-dimensional speckle tracking (3D STE) may play a role in the evaluation of CD. We aim to characterize new echocardiographic variables in patients with CD and to assess the hyp...

Home-based training program in patients with chronic heart failure and reduced ejection fraction: a randomized pilot study

Clinics; 76 (), 2021
OBJECTIVES: We aimed to compare the effects of home-and center-based exercise training programs on functional capacity, inspiratory muscle strength, daily physical activity level, and quality of life (QoL) in patients with chronic heart failure (CHF) over a 12-week period. METHODS: This study included 2...

Cardiopulmonary exercise testing in patients with left bundle branch block and preserved ejection fraction

BACKGROUND: Left bundle branch block (LBBB) has prognostic significance in patients with congestive heart failure. However, its influence is not well established in patients with preserved systolic ventricular function. OBJECTIVE: To evaluate the implications of LBBB presence in the cardiovascular perfor...