Balloon dilatation of the mitral valve by a single bifoil (2 x 19 mm) or trefoil (3 x 15 mm) catheter.
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منابع مشابه
Balloon dilatation of the mitral valve by a single bifoil (2 x 19 mm) or trefoil (3 x 15 mm) catheter.
The efficacy of balloon dilatation of the mitral valve by a bifoil (2 x 19 mm) or trefoil (3 x 15 mm) catheter (single catheter technique) was assessed in 53 patients (mean age 28) with mitral stenosis, most of whom were women. The procedure was unsuccessful in three patients. After balloon dilatation the left atrial pressure decreased from 22 mm Hg to 13 mm Hg and the mitral valve gradient fro...
متن کاملExercise ventilation after balloon dilatation of the mitral valve.
BACKGROUND Exertional dyspnoea is a limiting symptom in many patients with mitral stenosis but its causes remain incompletely understood. Ventilation during exercise is abnormal in chronic heart failure of all causes and there is increased ventilatory cost of carbon dioxide production. PATIENTS 23 patients with rheumatic mitral stenosis undergoing percutaneous balloon dilatation of the mitral...
متن کاملPercutaneous transluminal balloon dilatation of the mitral valve in pregnancy.
Pregnancy can cause life threatening complications in women with mitral stenosis, and there is a substantial risk of fetal death if valvotomy under cardiopulmonary bypass is required. A patient is described in whom pulmonary oedema developed after delivery of her first child by caesarean section 13 months previously. Subsequent cardiac catheterisation showed severe mitral stenosis (valve area 0...
متن کاملHistological changes in the aortic valve after balloon dilatation: evidence for a delayed healing process.
OBJECTIVE To investigate whether balloon dilatation of the aortic valve induces long-term macroscopic or histological changes or both to explain the restenosis process. DESIGN Prospective study of 39 consecutive patients. Sixteen later (mean (SD) 12 (10) months) required operation. This non-randomised subgroup was compared with 10 patients who had aortic valve replacement without prior dilata...
متن کاملIn vitro balloon dilatation of mitral valve stenosis: the importance of subvalvar involvement as a cause of mitral valve insufficiency.
To investigate the mechanism that increases the orifice area of the mitral valve during balloon dilatation 43 surgically excised intact rheumatic mitral valves were studied. The main pathological features were (a) fibrosis of mitral valve leaflets and commissures (10 valves); (b) fibrosis with calcification of one commissure (eight anterolateral, seven posteromedial); (c) fibrosis with calcific...
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ژورنال
عنوان ژورنال: Heart
سال: 1990
ISSN: 1355-6037
DOI: 10.1136/hrt.64.5.342