Background: Case reports link antipsychotic drugs with sudden cardiac deaths, which is consistent with doserelated electrophysiologic effects. Because this association has not been confirmed in controlled studies, we conducted a retrospective cohort study in Tennessee Medicaid enrollees, which included many antipsychotic users; there were also computer files describing medication use and comorb...

The electrophysiologic effects of intravenously administered disopyramide (2 mg/kg) on three parameters of sinus node function were examined in 16 symptomatic patients with sinus node dysfunction. Based on their ECG data before study, patients were subdivided into group A (n = 8), those with sinus pauses and/or sinoatrial (SA) exit block; and group B (n = 8), those with sinus bradycardia. Disop...

OBJECTIVE The aim of the study was to provide criteria that can help to distinguish between GBS-TRF and A-CIDP in the early phase of disease. BACKGROUND The distinction between Guillain-Barré syndrome (GBS) with fluctuations shortly after start of treatment (treatment-related fluctuations, or GBS-TRF) and chronic inflammatory demyelinating polyneuropathy with acute onset (A-CIDP) is difficult...

OBJECTIVES Goal of this study was to assess the long-term reproducibility of electrophysiologic drug testing in patients with ventricular tachyarrhythmias (VT/VF). BACKGROUND Programmed ventricular stimulation (PVS) is still widely used to guide antiarrhythmic therapy in patients with sustained ventricular tachycardia/fibrillation (VT/VF). Sotalol is considered as one of the most effective dr...

BACKGROUND Three-dimensional (3D) electroanatomical navigation systems decrease the fluoroscopy time of electrophysiology and ablation procedures. The aim of this study was to assess the safety and efficacy of a complete nonfluoroscopic approach for electrophysiologic studies and right-sided catheter ablations for supraventricular tachycardia in patients with normal cardiac anatomy using a 3D, ...