Abstract
Real-time 3-dimensional echocardiography was performed in 10 patients with obstructive hypertrophic cardiomyopathy (HC) before and after myectomy and in 6 controls. The exact location of systolic anterior motion of the mitral leaflet was shown in all patients with HC with a predominant involvement of the medial portion in 4 patients and the middle portion in 6 patients. The smallest area of the left ventricular outflow tract was significantly smaller in patients with HC than in controls (1.4 ± 0.7 vs 5.1 ± 1.2 cm 2, p <0.01), significantly increased after myectomy (4.8 ± 1.8 cm2, p <0.01) and was associated with a reduction of the pressure gradient at rest from 63 ± 41 to 15 ± 5 mm Hg (p <0.01).
Original language | English (US) |
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Pages (from-to) | 964-966 |
Number of pages | 3 |
Journal | American Journal of Cardiology |
Volume | 94 |
Issue number | 7 |
DOIs | |
State | Published - Oct 1 2004 |
Funding
This study was supported in part by grant NCC9–58 from the National Aeronautics and Space Administration, Houston, Texas, and by grant USAMRMC #02360007 from the Department of Defense, Fort Detrick, Maryland.
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine