cardiac involvement infrequently occurs in hypopituitarism, and lethal cardiac arrhythmias are rarely reported. we present a middle age female who died as a consequence of refractory ventricular arrhythmia whose medical history and previous laboratory investigation were consistent with hypopituitarism. we conclude that hypopituitarism may lead to electrocardiographic changes and malignant ventr...

Implantable devices capable of several modes of therapy will require differentiation of various ventricular tachyarrhythmias. Three methods of arrhythmia analysis, magnitude-squared coherence, ventricular rate, and irregularity of cycle length were performed for 45 episodes of induced ventricular tachyarrhythmia in 15 patients. Differentiation of monomorphic ventricular tachycardia from polymor...

Implantable devices capable of several modes of therapy will require differentiation of various ventricular tachyarrhythmias. Three methods of arrhythmia analysis, magnitude-squared coherence, ventricular rate, and irregularity of cycle length were performed for 45 episodes of induced ventricular tachyarrhythmia in 15 patients. Differentiation of monomorphic ventricular tachycardia from polymor...

We analyzed the morphology and rate of ventricular tachycardia induced by programmed cardiac stimulation in 18 patients with recurrent sustained ventricular tachycardia who had only one type of ventricular tachycardia during spontaneous episodes. In nine of 18 patients, we induced only one type of ventricular tachycardia, with a morphology and rate similar to those noted during spontaneous vent...

We analyzed the morphology and rate of ventricular tachycardia induced by programmed cardiac stimulation in 18 patients with recurrent sustained ventricular tachycardia who had only one type of ventricular tachycardia during spontaneous episodes. In nine of 18 patients, we induced only one type of ventricular tachycardia, with a morphology and rate similar to those noted during spontaneous vent...

OBJECTIVES The aim of this study was to assess the clinical characteristics and the efficacy of radiofrequency catheter ablation (RFCA) for idiopathic ventricular fibrillation (VF) and/or polymorphic ventricular tachycardia initiated by ventricular extrasystoles originating from the right ventricular outflow tract (RVOT). BACKGROUND Ventricular fibrillation and/or polymorphic ventricular tach...

Defibrillation/cardioversion thresholds were measured in 33 patients undergoing defibrillator implants. Each patient had a 12 cm2 patch placed near the left ventricular apex via a thoracotomy and a 10 cm2 spring lead placed pervenously at the right atrial-superior vena caval junction. Ventricular tachycardia of stable morphology, polymorphic ventricular tachycardia, or ventricular fibrillation ...