OBJECTIVES We report our experience of percutaneous valve insertion in pulmonary position in humans. BACKGROUND Over the past 40 years, prosthetic conduits have been developed to surgically establish continuity between the right ventricle and the pulmonary artery. However, stenosis and insufficiency of the conduit due to valvular degeneration or panus ingrowth frequently occur, limiting patient...

Pulmonary valve stenosis was relieved by balloon dilatation during cardiac catheterisation on 27 occasions in 23 infants and children aged 7 days to 12 years, median 31 months (three aged less than 2 weeks). Pulmonary valve diameter was estimated by cross sectional echocardiography to assist in the choice of balloon size. Before dilatation the right ventricular systolic pressure ranged from 41 ...

Various haemodynamic parameters in patients with mitral stenosis have been extensively studied but only a few measurements of the pulmonary blood volume are available (Milnor et al., 1960; Dock et al., 1961 ; McGaff et al., 1963 ; Schreiner et al., 1963; Yu et al., 1963). Furthermore, no worker has correlated the pulmonary symptoms of patients with mitral stenosis to their pulmonary blood volum...

BACKGROUND High morbidity and mortality due to Rheumatic heart disease (RHD) associated with females is mainly because of late diagnosis on one hand and socioeconomic reasons on the other hand. Poor referral to tertiary care centres leads to delayed diagnosis which results in complications. The objectives of this cross-sectional descriptive study was to assess the frequency of severe mitral ste...

BACKGROUND The classification of pulmonary stenosis (PS) severity based on the transpulmonary pressure gradient, which is affected by flow rate. CASE REPORT We report the first case of a pregnant patient with atrial septal defect (ASD) and pulmonary stenosis that was misclassified by conventional echocardiographic methods. Most importantly, three-dimensional transoesophageal echocardiographic...

The relation between the size of the balloon used for dilatation of the pulmonary valve and the extent of relief of pulmonary stenosis both immediately after and at intermediate term follow up was studied. Sixty four balloon dilatation procedures in 56 patients were divided into group 1-12 in which the ratio of the diameter of the balloon to that of the pulmonary annulus was less than or equal ...

BACKGROUND The decay of the pressure gradient across a stenotic mitral valve is determined by the size of the orifice and net AV compliance (C(n)). We have observed a group of symptomatic patients, usually in sinus rhythm, characterized by pulmonary hypertension (particularly during exercise) despite a relatively large mitral valve area by pressure half-time. We speculated that this discrepancy...

A modification of the Lecompte operation is reported in which the pulmonary valve is preserved. This technique is applicable in certain anomalies of ventriculoarterial connection with ventricular septal defect and subpulmonary stenosis. The main advantage of this modification, besides preservation of growth potential of the translocated pulmonary artery, consists of preservation of pulmonary va...

pure or predominant mitral stenosis before and 34 to 40 months after valvotomy. The patients were divided into 3 groups: pure mitral stenosis without increased pulmonary vascular resistance (group I, n =33), pure mitral stenosis with abnormal increase of pulmonary vascular resistance (group II, n= I2), and predominant mitral stenosis with mild insufficiency (group III, n= 9; all patients underg...

OBJECTIVE To determine the long-term natural history of patients with mild pulmonary valve stenosis. METHODS Throughout a 24-year evolutive period (1980 to 2004), 83 patients with pulmonary valve stenosis were evaluated, with 29 of them presenting a mild form of the defect. Of these 29, 13 patients had a long-term follow up. The mean age at the first and last follow-up visits was 34 months (1...