[Collapse of the aortic valve in dilated myocardiopathies: echocardiographic study].

Abstract:

:In order to clarify the early systolic partial closure (notching) of aortic valve in patients (pts) with dilated cardiomyopathy (DC), authors (AA) evaluated the M-mode echocardiograms corresponding to 41 pts with DC. Pts were separated in two groups, according to the presence of systolic notching: group A (18 pts) presenting systolic notching; group B (23 pts) in which no systolic notching was observed. For each group, the same echocardiographic parameters were evaluated related to aortic root, left atrium, left ventricule (LV), aortic valve and mitral valve. Both groups were compared statistically. Results--Group A presented a reduced motion of aortic root and greater initial maximal aortic cuspids separation. AA therefore conclude that in pts with DC the systolic notching has no eventual relation with mitral regurgitation. In this setting no conclusions about LV function can be inferred, and it is suggested that systolic notching may bear some relation with differences in the distribution of transvalvular aortic flow.

journal_name

Acta Med Port

journal_title

Acta medica portuguesa

authors

Martins RM,Morais J,Isaac J,Lopes C,Correia NF,Moita JF,Monteiro AA,Lopes MR

subject

Has Abstract

pub_date

1989-03-01 00:00:00

pages

61-4

issue

2

eissn

0870-399X

issn

1646-0758

journal_volume

2

pub_type

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