INTRODUCTION Arrhythmogenic right ventricular cardiomyopathy is an inherited myocardial disease affecting predominantly young people and manifests as sustained ventricular tachycardia with left bundle branch block morphology, sudden death or isolated right or biventricular heart failure. However, its first manifestation as sustained ventricular tachycardia in older patients without preceding sy...

Although changes in the pulmonary vasculature are the primary cause of pulmonary arterial hypertension (PAH), severity of symptoms and survival are strongly associated with right ventricular function, and right heart failure is the main cause of death in patients with PAH. Echocardiography and cardiac magnetic resonance imaging allow noninvasive evaluation of right ventricular function and stru...

A 76-yr-old man with unipolar ventricular pacemaker, previously implanted in the right ventricular apex, presented with syncopal attack and twitching of the right pectoralis muscle. He finally was diagnosed as having Twiddler's syndrome. The patient had a pulse rate of 36/min and cannon waves in the neck veins. Chest radiography showed a dislodged pacing lead completely wrapped around the pulse...

A 49-year-old female was referred for further evaluation of exercise-induced symptomatic 2nd degree 2 : 1 atrioventricular (AV) block (Mobitz type 2, Panel A). Several days of telemetric surveillance confirmed intermittent AV block but did not reveal evidence of any other arrhythmias. Coronary angiography showed normal coronary arteries. However, despite overall normal left ventricular ejection...

CHEST, 79: 1, JANUARY, 1981 IMAGING OF SUPRACARDIAC TOTAL ANOMALOUS PULMONARY VENOUS DRAINAGE 113 patient was one of acute ventricular failure with severe right upper abdominal quadrant pain due to liver distention, ascites, and edema. We suspect that the primary event was acute detachment of the semicircular suture, producing tricuspid regurgitation, acute right ventricular distention, increas...

Hemodynamics influence cardiac development, and alterations in blood flow may lead to impaired cardiac growth and malformations. The developing myocardium adapts to augmented workload by increasing cell number (hyperplasia). The aim of this study was to determine the influence of alterations in ventricular preload on fetal myocyte proliferation by manipulation of intracardiac shunting at the at...

Evaluation of global and regional right ventricu-lar systolic function in patients with pulmonary hypertension using a novel speckle tracking method. et al. Comparison of novel echocardiographic parameters of right ventricular function with ejection fraction by cardiac magnetic resonance. mitral and tricuspid annular velocities by pulsed wave Doppler tissue imaging in healthy subjects. Measurem...

INTRODUCTION The insertion of cryopreserved homograft conduit into the pulmonary outflow tract is an effective method of relieving severe pulmonary valve dysfunction. A certain proportion of the inserted homografts undergo late degeneration resulting in progressive right ventricular outflow obstruction. When severe, this obstruction needs repeat intervention. The timing of this intervention is ...