Gregory N. Beatch

Learn More
OBJECTIVES This randomized double-blind study compared the efficacy and safety of intravenous vernakalant and amiodarone for the acute conversion of recent-onset atrial fibrillation (AF). BACKGROUND Intravenous vernakalant has effectively converted recent-onset AF and was well tolerated in placebo-controlled studies. METHODS A total of 254 adult(More)
OBJECTIVES The purpose of this study was to determine the efficacy and safety of intravenous RSD1235 in terminating recent onset atrial fibrillation (AF). BACKGROUND Anti-arrhythmic drugs currently available to terminate AF have limited efficacy and safety. RSD1235 is a novel atrial selective anti-arrhythmic drug. METHODS This was a phase II,(More)
INTRODUCTION RSD1235 is a novel drug recently shown to convert AF rapidly and safely in patients.(1) Its mechanism of action has been investigated in a rat model of ischemic arrhythmia, along with changes in action potential (AP) morphology in isolated rat ventricular myocytes and effects on cloned channels. METHODS AND RESULTS Ischemic arrhythmias were(More)
OBJECTIVES To determine the acute effects of vernakalant (RSD1235) on electrophysiologic (EP) properties in humans. BACKGROUND Vernakalant is an investigational mixed ion channel blocker that can terminate acute atrial fibrillation (AF) in humans at 2 to 5 mg/kg and may be more "atrial-selective" than available agents. METHODS Patients (N=19; 53% male;(More)
1 The anti-tussive effects, of the local anaesthetic, lidocaine and carcainium chloride (RSD931) have been investigated in guinea-pigs and rabbits. 2 Pre-treatment of guinea-pigs with aerosols of lidocaine or RSD931 at 0.1, 1.0 and 10 mg ml(-1) reduced the number of citric acid-induced coughs by 9.3, 32.6 and 40.9% (P>0.05) for lidocaine and by 25.3%(More)
AIMS Vernakalant is a novel, relatively atrial-selective antiarrhythmic agent for conversion of atrial fibrillation (AF) to sinus rhythm. This study examined the safety and efficacy of vernakalant in converting atrial flutter (AFL) to sinus rhythm. METHODS AND RESULTS This was a phase 2/3, randomized, double-blind, placebo-controlled trial. Adults with(More)
1. Rats were used to evaluate the antiarrhythmic properties of tedisamil, a novel agent with the electrophysiological properties of a Class III antiarrhythmic drug. Tedisamil was tested against coronary artery occlusion-induced arrhythmias in conscious animals. 2. The actions of tedisamil on the ECG, as well as responses to electrical stimulation, were(More)
OBJECTIVE RSD1235 is a novel antiarrhythmic drug with atria-selective electrophysiological actions on Na(+) and K(+) currents. The mechanism for its protection of ventricular repolarization was assessed by its action on Purkinje fibers, and by block of late sodium current active during repolarization. Further, RSD1235's ability to reverse the pro-arrhythmic(More)
BACKGROUND Vernakalant, a relatively atrial-selective antiarrhythmic drug, has previously demonstrated efficacy for the acute conversion of atrial fibrillation (AF) to sinus rhythm. This study was designed to determine the most appropriate oral dose of vernakalant for the prevention of AF recurrence postcardioversion. METHODS AND RESULTS Patients with(More)
BACKGROUND Vernakalant is a novel, relatively atrial-selective antiarrhythmic drug. This analysis assessed the efficacy and safety of intravenous vernakalant for the rapid conversion of atrial fibrillation (AF) to sinus rhythm in patients with a history of ischemic heart disease (IHD). METHODS The presence of IHD was extracted from the medical history of(More)