[Echocardiographic variables related to mitral insufficiency in dilated cardiomyopathy].
OBJECTIVE
To evaluate the prevalence of mitral regurgitation (MR) in dilated cardiomyopathy (DC) and its relationship with left ventricular (LV) size and function.


METHODS
Forty-five patients, age ranged 2 to 84 (mean = 50 +/- 16) years, 32 male, with DC submitted to dopplerechocardiogram between October 1991 and December 1992 were studied.


RESULTS
Among 45 patients with DC, MR was found in 26 (58%). The systolic diameter (LVSD) and diastolic diameter (LVDD) of LV were significantly higher in patients with MR (60.7 x 51.5, p < 0.001 e 70.2 x 65.4, p < 0.02), respectively, and the left ventricular ejection fraction (LVEF) was significantly smaller in patients with MR (29.6 x 42.0, p < 0.001), when compared to the patients without MR.


CONCLUSIONS
The majority of the patients with DC were found to have MR. The LV size and contractile function showed a direct correlation with the MR prevalence. The echocardiographic findings LVEF > or = or < 40%, LVSD > or = or < 50mm and LVDD > or = or < 65mm can identify group of patients with high (+/- 75%) or low (< 25%) MR prevalence.
Hoss
A J
AJ
Centro de Diagnóstico Cardiovascular, Santa Cruz do Sul.
Petterson
C H
CH
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002311:Cardiomyopathy, Dilated / Q000150:complications / Q000000981:diagnostic imaging* / Q000503:physiopathology; D002648:Child; D002675:Child, Preschool; D015150:Echocardiography, Doppler; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000150:complications / Q000000981:diagnostic imaging* / Q000503:physiopathology; D009200:Myocardial Contraction; D012189:Retrospective Studies; D013318:Stroke Volume; D016277:Ventricular Function, Left; D016278:Ventricular Function, Right
Variáveis ecocardiográficas relacionadas à insuficiência mitral na miocardiopatia dilatada.