M-mode echocardiography in the detection of surgically resectable left ventricular aneurysm.

Autor:	HALL, R.J.C.
Zdroj:	European Heart Journal; Apr1983, Vol. 4 Issue 4, p230-237, 8p
Abstrakt:	Thirty- nine patients with severe cardiac failure and a previous transmural myocardial infarct were studied prospectively to assess the ability of M-mode echocardiography to detect resectable left ventricular aneurysms. Subsequent angiography showed an aneurysm in 23 patients and diffuse left ventricular damage in 16. Nine (57%) of the patients without aneurysm had either left ventricular end-systolic dimensions in excess of 6 cm combined with reduced contraction of the base of the left ventricle (fractional shortening of the level of the mitral valve <20%), or gross reduction of contraction (fractional shortening <15%) regardless of left ventricular dimension. These abnormalities did not occur in any patient with an aneurysm. In 21 (91%) of the patients with a left ventricular aneurysm its presence was correctly predicted either by fractional shortening in excess of 20% (16 patients) or gross delay of mitral valve opening (>80 ms 16 patients). In one patient without an aneurysm, fractional shortening was >20% and thus incorrectly suggested the presence of aneurysm. Only 39% of aneurysms were directly visualized. Therefore M-mode echocardiography can correctly rule out the diagnosis in over 50% of patients without an aneurysm and strongly suggest the possibility in over 90% of patients with one. [ABSTRACT FROM PUBLISHER]
Databáze:	Complementary Index
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