Detection of mild XXXX by range-gated pulsed Doppler echocardiograhy.

@entity1 @entity712 @entity28 @entity2415 @entity337 @entity299
In order to assess the sensitivity and specificity of the range-gated pulsed Doppler echocardiogram for the detection of @entity337 , a study with use of this technique was carried out in 46 @entity1 . They were classified into 3 groups: Group I was composed of 19 @entity1 with a variety of @entity299 but with a competent aortic valve. Cardiac catheterization revealed no @entity337 in any of the 19 @entity1 , and the Doppler echocardiogram detected no turbulent diastolic flow in the left ventricular outflow tract. Group II was composed of 17 @entity1 who clinically and by auscultation had @entity337 , which was confirmed by cardiac catheterization in 6. In all 17 @entity1 the Doppler echocardiogram detected several grades of turbulent diastolic flow compatible with @entity337 in the left ventricular outflow tract. Group III was composed of 10 @entity1 with @entity337 but without the expected clinical or auscultatory evidence. The echocardiogram detected mitral valve flutter in only 1 @entity1 . Cardiac catheterization revealed @entity337 graded 1/4 and 2/4 in 9 @entity1 , and the @entity1 who did not undergo catheterization had a murmur of @entity337 6 months later. In all 10 @entity1 the Doppler echocardiogram detected a regurgitating turbulent flow compatible with @entity337 in the left ventricular outflow tract. It is concluded that the Doppler echocardiogram was more useful than auscultation and echocardiography for the detection of mild @entity337 . In this study the range-gated pulsed Doppler echocardiogram proved 100% sensitive and specific. However, it will be necessary to study larger groups in order to assess its utility in more complicated conditions ( @entity28 , @entity2415 , and @entity712 ) and the differential diagnosis with other diastolic murmurs.
