Role of two-dimensional echocardiography in diagnostics of hypertrophic cardiomyopathy

Česká verzia

Authors: J. Veselka
Authors place of work: 2. LF UK a FN V Motole, Praha ; Kardiologická klinika
Published in the journal: Kardiol Rev Int Med 2006, 8(1-2): 52-55
Category: Editorial

Summary

Echocardiography is essential for HCM diagnostics. Except for magnetic resonance imaging (MRI), all the other examinations are rather supporting. Diagnosis of HCM is usually based on left ventricle (LV) hypertrophy mainly in interventricular septum (IVS) and front wall. HCM diagnostics also focuses on reduced LV with high ejection fraction, Doppler signs of impaired LV diastolic function and intraventricular gradient that is found in one-fourth of patients. Another typical sign of HCM is asymmetric septal hypertrophy with maximum LV wall thickness exceeding 12 mm and with IVS/free wall ratio over 1.3. If ratio of 1.5 is applied, the examination is even more specific. It should be emphasized that echocardiographic criteria have to be related to clinical examination and that LV hypertrophy or intraventricular obstruction alone are not reasons for diagnosing HCM. In clinical practice, heart morphology is best described by echocardiography. Hopefully we can soon use cardiac MRI that is in the frame to diagnose HCM even more accurately.

Keywords:
hypertrophic cardiomyopathy – echocardiography – obstruction

Zdroje

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