Transesophageal echocardiographic evaluation of mitral regurgitation in hypertrophic cardiomyopathy: contributions of eccentric left ventricular hypertrophy and related abnormalities of the mitral complex

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
T OkiS Ito

Abstract

This study was designed to evaluate the contribution of eccentric left ventricular hypertrophy and its related organic and spatial abnormalities of the mitral complex to the occurrence of mitral regurgitation in patients with hypertrophic cardiomyopathy We selected 45 consecutive patients with systolic mitral regurgitation by color Doppler echocardiography and performed transesophageal echocardiography in all patients. Eighteen patients were in the obstructive group and 27 patients were in the nonobstructive group of hypertrophic cardiomyopathy with asymmetric septal hypertrophy. Twenty subjects without any cardiac disorders served as the control group. The maximum area of mitral regurgitation was significantly greater in the obstructive group than in the nonobstructive group. Mitral regurgitation appeared more frequently during pansystole in the two groups with hypertrophic cardiomyopathy, particularly in the obstructive group. Mitral valve prolapse was observed in 20 (44%) of the 45 patients with hypertrophic cardiomyopathy. Distances between the posterior papillary muscle and anterior or posterior mitral anulus were significantly smaller in the two groups with hypertrophic cardiomyopathy than in the normal control group. In ...Continue Reading

References

Feb 1, 1992·The American Journal of Cardiology·J ZamoranoJ Meyer
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Citations

Nov 16, 2011·General Thoracic and Cardiovascular Surgery·Takashi MiuraTomohiro Odate
Mar 6, 1998·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·T C YeoJ B Seward
Jul 27, 2021·Circulation Journal : Official Journal of the Japanese Circulation Society·Hiroaki KitaokaUNKNOWN Japanese Circulation Society Joint Working Group

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