Sixty-seven patients undergoing a second closed mitral valvotomy between 1957 and 1974 have been reviewed. Since 1951, 510 patients have had a primary closed valvotomy in the same unit. The incidence of restenosis severe enough to warrant further surgery is higher after a finger fracture procedure (40%) than after a Tubbs dilator valvotomy (9.2%). There is an operative mortality of 10.4%, and a...

OBJECTIVES Transventricular valvotomy is a kind of hybrid therapy that is widely used in developing countries where cardiac catheter intervention is limited in neonates. The purpose of this study was to evaluate the surgical outcomes and effectiveness of transventricular valvotomy in neonates with pulmonary atresia and an intact ventricular septum. METHODS Between August 2008 and July 2013, 2...

Calcification of the valve is frequently encountered at valvotomy for the relief of mitral stenosis. Calcific embolism is a recognized hazard of the operation, but Michell (1960), who has reviewed the problem of valvular calcification with regard to mitral valvotomy, has stated that, "the danger from calcific emboli during valvotomy does not seem to be very great." Perhaps it is not always reco...

BACKGROUND Failure of infants with critical aortic stenosis to survive after adequate valvotomy despite a left ventricular size that appears to be adequate indicates that additional preoperative anatomic features may contribute to mortality. METHODS AND RESULTS Discriminant analysis was used to determine which of several echocardiographically measured left heart structures were independent pr...

were selected according to age, sex, cardiac rhythm, and mode of operation, the mitral valve area (MVA) was determined by cardiac catheterization in 32 patients before and 1 year following closed mitral valvotomy. There was a significantly greater increase in MVA in female patients, younger patients, and patients with sinus rhythm than in males, patients over 45 years of age, and patients with ...

Patients with tetralogy of Fallot (TOF) after complete repair and pulmonic stenosis (PS) after surgical valvotomy often develop significant pulmonic regurgitation (PR) that eventually requires valve replacement. Although criteria exist for the timing of pulmonary valve replacement in TOF, it remains less clear when to intervene in valvotomy patients and whether TOF recommendations can be applie...

The authors investigated the index ofpulmonary bloodflow distribution between the upper and lower parts of the lungs in three groups ofpatients with acquired valvular heart disease before, and 3 and 12 months after surgical correction for mitral and aortic valve disease. Three and 12 months after mitral valvotomy, there was a statistically significant decrease in the perfusion of the upper part...

The cardiogram of mitral stenosis, with emphasis on right ventricular hypertrophy and P wave changes before and after mitral valvotomy has been studied previously by Mounsey (1957) and by Rodriguez Torres et al. (1959). Cardiographic evidence of right ventricular hypertrophy that recurred after valvotomy and increased when restenosis occurred has been presented by Wilcken (1960). The present st...

Mitral pressure half-time (T1/2) is widely used as an independent measure of mitral valve area in patients undergoing percutaneous mitral valvotomy. However, fluid dynamics theory predicts T1/2 to be strongly dependent on chamber compliance and the peak transmitral gradient, which are variables that change dramatically with valvotomy. These theoretical predictions were tested in an in vitro mod...

IN certain cases of inactive rheumatic heart disease when the lesion is predominantly mitral stenosis dramatic results may be obtained from surgical relief of the valvular obstruction (Bailey, 1949; Glover, et al., 1950; Baker, et al., 1950, 1952). Unfortunately, not all cases of mitral stenosis will benefit from operative interference. The major difficulty associated with the surgical treatmen...