THE SURGICAL SIGNIFICANCE OF HYPERTROPHIC INFUNDIBULAR OBSTRUCTION ACCOMPANYING VALVULAR PULMONIC STENOSIS

Regression after open valvotomy of infundibular stenosis accompanying severe valvular pulmonic stenosis.

Three patients operated upon under hypothermia for severe valvular pulmonic stenosis had right ventricular pressures in excess of 100 mm. Hg after open valvotomy. The residual obstruction, localized by pressure measurements to the subvalvular region, appeared to be due to greatly hypertrophied musculature in the outflow tract of the ventricle. Infundibular resection was not attempted. Electroca...

The ejection click of valvular pulmonic stenosis.

Ten patients with valvular pulmonic stenosis were studied by simultaneous external phonocardiograms and intracardiac pressure recordings during successive respiratory cycles to examine the mechanism of the respiratory variation in the ejection click. Selective cineangiograms were perforned in four. During inspiration right ventricular end-diastolic pressure (RVEDP) exceeded the pressure in the ...

Pulmonary valvular stenosis: the infundibular factor in relation to valvotomy.

It has been found that after pulmonary valvotomy for pulmonary valvular stenosis with an intact interventricular septum a satisfactory fall in right ventricular pressure is not always achieved immediately. In order to explain this, Kirklin, Connolly, Ellis, Burchell, Edwards, and Wood (1953) concluded that before the development of open heart surgery there were two main reasons: (1) failure to ...

Hypertrophic infundibular stenosis complicating simple pulmonary valve stenosis.

Branchio-oculo-facial syndrome with valvular pulmonic stenosis.