[Malfunction of disc prostheses. Echocardiographic study of 5 cases (author's transl)]. / Malfunzionamento di protesi a disco. Studio ecocardiografico di cinque casi.
G Ital Cardiol
; 10(5): 565-77, 1980.
Article
in It
| MEDLINE
| ID: mdl-7450378
ABSTRACT
78 patients who underwent disc prostheses replacement, 36 in mitral area, 58 in aortic area were studied by echocardiography. The Authors found 5 cases of malfunction, 3 in mitral area and 2 in aortic area. Regarding mitral malfunctions in 1 case a valve thrombosis was found; in 2 cases there was a partial leak. Regarding aortic malfunctions there was paravalvular leak. In mitral area malfunctions the Authors found alterations of the disc morphology during diastolic opening time associated with alteration of opening time. An increased diastolic closure velocity in 2 cases of paraprosthetic leak was found. A diagnostic element in the case with thrombosis was variability of maximal disc escursion during the same recording, because opening time variability never got over 10 m. seconds. In aortic area malfunctions the Authors found a constant fluttering of anterior mitral leaflet, a sinergic septal motion with the posterior wall and in 1 case the presence of disc opening before the first component of the first sound. The Authors underline the importance of simultaneous eco-phonocardiographic examination and the check-ups for the time to be.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Aortic Valve
/
Heart Valve Prosthesis
/
Echocardiography
/
Mitral Valve
Type of study:
Diagnostic_studies
Limits:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Language:
It
Journal:
G Ital Cardiol
Year:
1980
Document type:
Article
Publication country:
IT
/
ITALIA
/
ITALY
/
ITÁLIA