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In a randomized trial, patients whose heart rates were strictly controlled fared no better than those treated more leniently — at least in the short term.
CME Exam

Respiratory disturbances can trigger AF and NSVT during sleep.
CME Exam

Data from a small case series suggest that advanced symptoms, low LVEF, or both are associated with adverse maternal and fetal outcomes.

Findings from a large observational study link early repolarization in inferior leads to increased risk for cardiac and arrhythmic death.

Indications for device therapy have burgeoned as risk factors for sudden cardiac death and heart failure have become increasingly well defined.

Two major professional societies update their guidance in an era when many ICDs are implanted prophylactically.

For many post-MI patients, noninducibility of ventricular arrhythmias on electrophysiology testing does not mean risk is low.

No overall prevention benefit was documented in a randomized, placebo-controlled trial.

Statins lower LDL-cholesterol levels and, thereby, reduce cardiovascular risk. Some evidence suggests that other properties of statins also play a role in this risk reduction. . . .

A meta-analysis of four randomized comparison trials suggests that ablation may have the edge over drug treatment — but also highlights the paucity of evidence.

In a small observational study, the frequency and duration of atrial tachyarrhythmias decreased in individuals with pre-existing devices who upgraded to CRT.

Implantable cardioverter-defibrillators (ICDs) are effective for primary prevention of sudden cardiac death (SCD) in high-risk patients. In a study partly funded by an ICD manufacturer, . . .

For the growing number of patients with implantable cardioverter-defibrillators (ICDs), what are the clinical and electrophysiological characteristics associated with arrhythmia recurrence? In this single-center study, . . .

Although implantable cardioverter-defibrillators (ICDs) are used frequently to treat patients with sustained ventricular arrhythmias, ICDs' relative efficacy compared with antiarrhythmic therapy is unknown. This case-control . . .

In a matched-cohort observational study, RBBB arrhythmias predicted poor outcome, but LBBB arrhythmias did not.

Adenosine is frequently used for the treatment of paroxysmal supraventricular tachycardia (PSVT), but there has been concern that adenosine in this setting can trigger atrial . . .

In a single-center cohort, untreated bradycardia in adults older than 60 was associated with eventual pacemaker placement but did not increase mortality risk.
CME Exam

Radiofrequency pulmonary-vein ablation outperformed drug therapy in limiting AF recurrence and improving quality of life.
CME Exam

Findings from yet another study show the detriment of RV pacing; however, the benefits of CRT in patients with preserved LV function remain unclear.