Catheter ablation was found to be associated with greater rates of freedom from AF or atrial tachycardia in patients with persistent AF, when performed in combination with vein of Marshall ethanol infusion vs alone.
Catheter ablation was found to be superior to medical rate control for improving LVEF long term in patients with atrial fibrillation and systolic heart failure.
Treatment with beta-blockers vs amiodarone, calcium channel blockers, or digoxin was associated with improved heart control at 1, but not 6 hours in patients with sepsis and atrial fibrillation.
Prolongation of the QTc interval was found to be prevalent after 7 days of hospitalization for COVID-19.
Substrate ablation during sinus rhythm was found to be associated with low rates of procedural complications and early mortality.
Study authors assessed whether azithromycin in addition to a hydroxychloroquine regimen shows positive results in clinical improvement or mortality reduction in patients hospitalized with severe COVID-19.
The risks for ventricular fibrillation or sudden cardiac arrest were found to be associated with low T/R ratios at leads II and V5 in patients with spontaneous type-1 Brugada pattern.
To evaluate the association, the study authors utilized healthcare databases from Ontario, Canada to identify adults 66 years of age and older with no history of AF who filled at least 1 prescription for levothyroxine.
Retrograde coronary venous ethanol ablation may prevent the recurrence of arrhythmias in the long-term in patients with ventricular arrhythmias refractory to drugs and radiofrequency ablation.
Elevated cardiac troponin I levels had prognostic value for paroxysmal supraventricular tachycardias only when the condition was associated with a history of coronary artery disease.