منابع مشابه
Pulmonary valvotomv PULMONARY VALVULAR STENOSIS
Twenty children with pulmonary valvular stenosis were studied by cardiac catheterization both at rest and during submaximal supine exercise, prior to and following pulmonary valvotomy. The resting and exercise states were comparable preoperatively and postoperatively since cardiac output, heart rate, A V 02 difference and oxygen consumption were similar. Evidence of improved cardiac function wa...
متن کاملPulmonary Valvular Stenosis
OBSTRUCTION to the outflow of blood from the right ventricle may occur as a result of congenital stenosis of the pulmonary valve, of the infundibulum, or of the supravalvular area. These all result in a fixed constriction of the lumen of the involved region. Recently, considerable interest has been focused upon a more dynamic type of infundibular obstruction that occurs in a number of patients ...
متن کاملInfundibular pulmonary stenosis.
A 63-yr-old patient presented with a preoperative diagnosis of aortic stenosis and pulmonary stenosis for aortic valve (AV) replacement and possible pulmonary valve (PV) repair. His symptoms included chest heaviness and shortness of breath. A preoperative transthoracic echocardiogram demonstrated calcified tri-leaflet AV with severe stenosis and a peak pulmonic flow velocity of 3.7 m/s. Cardiac...
متن کاملPulmonary artery stenosis.
SINCE the description by Mbller' in 1953 of stenosis of peripheral pulmonary arteries, this congenital lesion has been recognized with increasing frequency. The lesion is of interest both from a clinical and physiologic standpoint. From the latter standpoint, there is sufficient documentation to warrant the inclusion of this congenital anomaly as one of the causes of right ventricular hypertens...
متن کاملAcquired Pulmonary Stenosis
Acquired pulmonary stenosis refers to narrowing of the right ventricular outflow tract or main pulmonary artery which has developed after birth. It may arise from external pressure or from an intrinsic pathological process, and is generally regarded as a rare condition because few cases have been reported. Our experience, however, suggests that it is probably not as rare as previously believed ...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1909
ISSN: 0035-9157
DOI: 10.1177/003591570900200163