IT IS USUALLY possible to distinguish pulmonic stenosis with an intact ventric-ular septum (designated as pulmonic stenosis) from pulmonic stenosis with a right-to-left shunt through a ventricular septal defect (te-tralogy of Fallot) by routine clinical, electro-cardiographic, and radiologic examination.1-3 If the diagnosis is still uncertain, it can as a rule be made by phonocardiography and c...

Twenty-four healthy subjects and 33 patients with left-sided valvular heart disease in atrial fibrillation were studied using a pulsed-wave Doppler ultrasound system connected to a 900 two-dimensional echocardiography device. Systolic turbulence in the right atrium (RAST) was studied, and the ratio of maximum systolic velocity to maximum diastolic velocity ratio (MSV:MDV) was determined in the ...

are surviving to adulthood, this study was done to provide follow-up data for physicians concerned with their care. We reviewed the current status of 233 patients born before January 1962 who had repair ofTOF at a median age of 9.7 years (range 11 months to 36 years). There were 26 surgical deaths (11.1%), 12 late cardiacrelated deaths (5.9%) and three noncardiac deaths (1.3%). Eight of the 12 ...

INTRODUCTION Conventional, atrial-synchronised, right ventricular apical pacing (VP) may compromise ventricular function by causing ventricular desynchronisation. The aim of this study was to evaluate the long-term effects of VP on left and right ventricular systolic and diastolic function. METHODS We studied 21 clinically stable dual-chamber pacemaker recipients (mean age 68 +/- 9 years) wit...

BACKGROUND Cardiac resynchronization therapy has been shown to improve systolic function in patients with advanced chronic heart failure and electromechanical delay (QRS width > 120 ms). However, the effect of acute biventricular (BiV) pacing on perioperative haemodynamic changes is not well defined. In the present study, acute changes in regional left ventricular (LV) systolic function determi...

OBJECTIVE To determine preoperatively, by analysing asynchronous left ventricular wall motion, whether to approach through the right ventricle or the left ventricle when carrying out catheter ablation of the accessory pathway in Wolff-Parkinson-White syndrome, especially in patients with the pathway located on the septum. METHODS 73 patients with manifest Wolff-Parkinson-White syndrome who un...

The effects of a large arteriovenous fistula on left and right ventricular hemodynamics and cardiac myocyte size were examined in adult rats at 1 week and 1 month after surgery. Cardiac output, left ventricular function, and right ventricular function were evaluated before obtaining isolated myocytes for cell size measurements. Average heart weight increased 35% at 1 week and 86% at 1 month in ...