Open AccessAn evaluation of two‐dimensional echocardiography in the diagnosis of hypertrophic cardiomyopathy
Author(s) -
Ballester M.,
Rees S.,
Rickards A. F.,
Mcdonald L.
Publication year - 1984
Publication title -
clinical cardiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.263
H-Index - 72
eISSN - 1932-8737
pISSN - 0160-9289
DOI - 10.1002/clc.4960071203
Subject(s) - hypertrophic cardiomyopathy , medicine , cardiology , mitral valve , mitral regurgitation , functional mitral regurgitation , cardiomyopathy , muscle hypertrophy , heart failure , ejection fraction
Various anatomical and functional features of hypertrophic cardiomyopathy are analyzed in view of the data provided by two‐dimensional echocardiography. Measurement of septal thickness is crucial, and is best done by a combination of M‐Mode and 2‐D echo. Two types of systolic anterior movement of the mitral valve (SAM) are observed and are related to the degree of sub‐valvular gradient. The specificity of these patterns of SAM is analyzed. The functional anatomy of the mitral valve in relation to the presence and degree of mitral regurgitation shows that although the presence and type of SAM are important, there are other causes of mitral regurgita‐tion in hypertrophic cardiomyopathy unrelated to SAM. We emphasize the fact the 2‐D echo cannot “diagnose” hypertrophic cardiomyopathy except when cardiac hypertrophy plus SAM involving the body of the mitral valve is seen; in the remaining cases, 2‐D echo confirms/suggests the clinical diagnosis.