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J Hegesh

Publications and source records attributed to J Hegesh.

41 records · Page 3Linked to original sources
PubMed1984

Pericardial-mechanical valved conduits in the management of right ventricular outflow tracts. Preliminary report.

Over the 3 year period from 1980 to 1982, mechanical prosthetic valves were implanted in the pulmonary pathway in seven patients. In two the procedure was a pulmonary valve replacement. In two it was an implantation of a pulmonary valve with transannular pericardial patching, and in three, complete pericardial (tube) conduits, which included mechanical valves, were constructed. There were neither perioperative nor late complications. Four patients were recatheterized. In three residual right ventricular hypertension was observed. In one of the three the cause of obstruction was not verified, but in the remaining two it was unrelated to the mechanical valve. No thromboembolic phenomena were observed.

Adolescent↗
PubMed1983

Diagnosing tricuspid regurgitation by direct imaging of the regurgitant flow in the right atrium using contrast echocardiography.

To determine whether tricuspid regurgitation (TR) can be diagnosed by direct imaging of regurgitant flow in the right atrium (RA) using contrast echocardiography, echocardiography was performed in 35 patients using peripheral intravenous injections of 5% dextrose solution. Fifteen patients had TR judged by v-wave synchronous contrast appearance on the inferior vena cava echogram (a previously validated method for diagnosing TR), 5 of whom had clinically obvious TR. Twenty patients had no TR on inferior vena cava contrast echocardiography, 9 of whom were normal volunteers. On subsequent blind review, 13 of the 15 patients with TR were correctly identified on the basis of the regurgitant contrast flow just posterior to the tricuspid valve in the RA. Of the 20 without TR, 19 were correctly identified and there was 1 false-positive result. Using different criteria for the diagnosis (insisting on imaging of flow across the tricuspid valve in systole), another blinded observer correctly diagnosed only 8 of the 15 patients as having TR, but had no false-positive results. To avoid false-positive results, it is important to realize that there are 2 regions where retrograde flow can normally be seen in the RA: (1) briefly at the onset of systole coincident with tricuspid valve closure, and (2) in the posterior RA, as distinct from the anterior RA area just behind the tricuspid valve where TR is diagnosed in this study.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1983

Severe congestive heart failure in mild pulmonic stenosis due to dysplastic pulmonary valve associated with cardiomyopathy.

Congestive heart failure has never been described in patients with dysplastic stenotic pulmonary valve without associated shunt lesions. We describe two patients with mild pulmonic stenosis due to valvular dysplasia associated with cardiomyopathy who developed severe congestive heart failure. Since the small pressure gradients across the pulmonary valve cannot cause this complication, we suggest that it resulted from the associated hypertrophic non-obstructive cardiomyopathy. The presence of cardiomyopathy may alter the clinical presentation and prognosis of patients with dysplastic pulmonary valve. In some cases, like our two cases, the cardiomyopathy rather than the valvular lesion should be considered the main disease.

Cardiomegaly↗