Narrow QRS complexes occur regularly. This tracing suggests either atrial flutter or ventricular tachycardia. It is not atrial flutter, however. If it were, the QRS complexes occurring regularly would ...

The approval was based on data from 5 randomized, double-blind, placebo-controlled trials that included 317 patients with supraventricular tachycardia. Landiolol is a selective beta-1 adrenergic ...

Background: A 60-year-old male with obesity (body-mass index 43 kg/m 2) presented with recurrent symptomatic atrial fibrillation (AF), which he had had since age 41 years. The AF was refractory to ...