Diabetic Cardiomyopathy: What Clinicians Should Know.

Diabetes has classically been associated with atherosclerotic cardiovascular disease. However, heart failure is now increasingly recognized as a prevalent and often first cardiovascular complication among patients with diabetes. Investigation of this epidemiological relationship has led to recognition of diabetic cardiomyopathy, or structural heart disease that develops in patients with diabetes and may lead to progressive heart failure independently of coronary artery disease or conventional cardiovascular risk factors such as hypertension.

Digoxin Discontinuation in Patients With HFrEF on Beta-Blockers: Implication for Future 'Knock-Out Trials' in Heart Failure.

Background: National heart failure guidelines recommend quadruple therapy with renin-angiotensin system inhibitors, beta-blockers, mineralocorticoid receptor antagonists, and sodium-glucose cotransporter 2 inhibitors for patients with heart failure with reduced ejection fraction (HFrEF), most of whom also receive loop diuretics. However, the guidelines are less clear about the safe approaches to discontinuing older drugs whose decreasing or residual benefit is less well understood. The objective of this study was to examine whether digoxin can be safely discontinued in patients with HFrEF receiving beta-blockers.

Clinically Guided Adaptive Machine Learning Update Strategies for Predicting Severe COVID-19 Outcomes.

Background: Machine learning algorithms are essential for predicting severe outcomes during public health crises like COVID-19. However, the dynamic nature of diseases requires continual evaluation and updating of these algorithms. This study aims to compare three update strategies for predicting severe COVID-19 outcomes postdiagnosis: "naive" (a single initial model), "frequent" (periodic retraining), and "context-driven" (retraining informed by clinical insights).

Sociodemographic Disparities in Coronary Artery Calcium Screening.

Objectives: This study aimed to compare the demographic features and socioeconomic status of patients who underwent coronary artery calcium screening to that of their local population.

Background: Coronary artery calcium scores provide important evidence of subclinical atherosclerosis. However, insurance often does not cover coronary artery calcium testing, which could exclude people of lower socioeconomic status.