Apical hypertrophic cardiomyopathy: potential utility of Strain imaging

Eur J Echocardiogr. 2008 Jul;9(4):560-2. doi: 10.1016/j.euje.2007.02.004. Epub 2008 May 1.

Abstract

Hypertrophic cardiomyopathy (HCM) is a frequently recognized condition on echocardiography. The apical variant, also known as 'Japanese variant', is rare and often poses a diagnostic challenge. There has been a resurgence of interest in the diagnosis of HCM especially with the advent of novel imaging modalities such as strain imaging. Two-dimensional (2D) strain echocardiography calculates tissue velocities via frame-to-frame tracking of acoustic markers within the image and provides strain parameters comparable with tissue-Doppler-derived strain. We describe paradoxical apical strain (systolic lengthening) without overt apical dyskinesis (conventional imaging) in two patients with apical HCM, using 2D strain imaging. Our report highlights a novel application of 2D strain imaging that could facilitate the diagnosis of apical HCM.

MeSH terms

  • Adult
  • Cardiomyopathy, Hypertrophic / complications
  • Cardiomyopathy, Hypertrophic / diagnostic imaging*
  • Humans
  • Male
  • Middle Aged
  • Stroke / etiology
  • Syncope / etiology
  • Ultrasonography