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Results for “PULMONARY VALVE STENOSIS”

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At least 307 records · Page 17Linked to original sources
PubMed1984

Assessment of percutaneous balloon pulmonary and aortic valvuloplasty.

Percutaneous balloon pulmonary or aortic valvuloplasty was performed in 66 consecutive patients with no deaths. The transvalvular pressure gradient was reduced from 85 +/- 35 to 30 +/- 15 mm Hg (p less than 0.01) in 39 patients with congenital pulmonary valve stenosis and from 108 +/- 46 to 32 +/- 16 mm Hg (p less than 0.01) in 27 patients with congenital aortic valve stenosis. Subsequent mild aortic regurgitation occurred in seven patients and moderate regurgitation occurred in one patient. Operative evaluation of seven patients with pulmonary valve stenosis who had additional cardiac anomalies revealed the mechanisms of valve opening to be commissural splitting, cusp tear, or avulsion of the cusp from the anulus. Operative evaluation of two patients with residual high aortic valve gradients revealed minor degrees of commissural splitting. Although further evaluation is required to determine the long-term effects, early evaluation indicates that percutaneous balloon valvuloplasty may be useful in the definitive treatment of isolated pulmonary valve stenosis in some patients and of palliative value in others. The procedure is considered palliative in patients with aortic valve stenosis.

Adolescent↗
PubMed1991

[Complications of catheter-balloon valvuloplasty (analysis of their causes and the methods of prevention and treatment].

The authors analyse the results of 1,404 operations of catheter-balloon valvuloplasty in stenoses of the pulmonary, aortic, and mitral valves. The experience was accumulated by the leading heart surgeons of the country from 1984 to 1990. The total number of complications was 77 (5.4%), 23 (1.6%) of them were fetal. The least number of complications (1.88%) occurred in catheter-balloon valvuloplasty in pulmonary stenosis, 1% were fetal. Complications in aortic stenosis were encountered in 11.3% of cases, 4.8% were fatal. The greatest number of complications (44) were recorded in mitral stenosis with a relatively low mortality (2.7%). The authors distinguish unspecific complications connected with the use of standard diagnostic catheters and instruments, and specific complications linked with the use of balloon catheters or caused by the course of the disease, and the character of the valve affection. As the result of analysis of the causes of complications, the authors suggest a system for preparation of patients for operation and the principles of its safe accomplishment and describe the order of the acts undertaken by the surgeon for the management of complications. Analysis of complications of catheter-balloon valvuloplasty demonstrates the efficacy and mild injurious character of this method, which makes it possible to rank it among the generally accepted cardiosurgical methods for the correction of heart valvular stenoses.

Aortic Valve Stenosis↗
PubMed1992

Failure of balloon dilatation of the pulmonary valve in carcinoid pulmonary stenosis.

BACKGROUND: Carcinoid heart disease typically results in pulmonary stenosis and tricuspid incompetence. Percutaneous balloon dilatation is an effective treatment for congenital pulmonary stenosis and has been applied successfully to tricuspid stenosis caused by carcinoid heart disease. The value of balloon dilatation of the pulmonary valve in carcinoid pulmonary stenosis was assessed. METHODS: Two patients with severe congestive heart failure secondary to carcinoid heart disease and with documented pulmonary stenosis had balloon dilatation of the pulmonary valve. In both cases tricuspid regurgitation was also present together with reduced cardiac output. RESULTS: The procedure was technically successful in both patients. One patient experienced symptomatic benefit for two months and the other experienced no improvement. Both patients subsequently required combined tricuspid and pulmonary valve replacement from which good results and symptomatic improvement were obtained. CONCLUSION: Though balloon dilatation of the pulmonary valve is technically feasible it is unlikely to provide useful palliation in carcinoid heart disease. Valve surgery should be considered in patients in whom the malignancy is controlled but carcinoid heart disease is producing drug resistant congestive heart failure.

Carcinoid Heart Disease↗
PubMed1978

Cardiovascular malformations in Turner's and Noonan's syndrome.

The cardiovascular findings in 9 patients with Turner's syndrome and 9 patients with Noonan's syndrome are described. Of the 9 patients with Turner's syndrome, 4 had coarctation of the aorta, 4 aorta stenosis, and the remaining patient both these lesions. All patients with Noonan's syndrome had pulmonary valve stenosis. In addition, 2 children had an atrial septal defect and 1 an atrial septal defect associated with mild supravalvar pulmonary stenosis and anomalous drainage of the right upper pulmonary veins. In the majority of patients the electrocardiogram was different from the pattern usually seen in pulmonary valve stenosis: the QRS axis in the frontal plane was superiorly oriented in 7 out of 9 cases and in 2 patients evidence of right ventricular hypertrophy was lacking in the right praecordial leads; in 5 patients an rS complex was seen in the left praecordial leads. Gross thickening of pulmonary valve cusps was found at operation in 4 of the 8 patients who were operated on. Although phenotypically related, Turner's and Noonan's syndromes are associated with different and distinct cardiovascular anomalies.

Adolescent↗