Articles related to CARDIAC ARRHYTHMIA

A hospitalist review of updated AHA resuscitation guidance highlights changes involving cardioversion energy, vascular access, POCUS, postarrest oxygen and temperature targets, medication use, and ethical decision-making during resuscitation.

Higher moderate-to-vigorous physical activity was associated with lower incident atrial fibrillation risk in a UK Biobank cohort, with a stronger association among participants with atrial cardiomyopathy. The observational design does not establish causality.

Whole-genome sequencing of nearly one million participants identified pathogenic DMPK repeat expansions more frequently than historical estimates of myotonic dystrophy type 1 prevalence, while linking expansion status with cardiac conduction disorders and early-onset cataracts.

A perimenopausal woman presenting with ST-segment elevation myocardial infarction was found to have both spontaneous coronary artery dissection and stress-induced cardiomyopathy, highlighting the diagnostic complexity and potential overlap of two uncommon causes of acute coronary syndrome in women.

In the randomized DECAF trial, patients undergoing cardioversion who consumed at least one caffeinated coffee daily experienced fewer clinically detected atrial fibrillation recurrences than those abstaining from caffeine. The study was modest in size and further validation is needed.

A randomized crossover trial of 108 habitual cannabis users found fewer premature atrial contractions on cannabis-use days than abstinence days. The short-term physiologic findings provide mechanistic insight but were not designed to evaluate long-term cardiovascular health outcomes.