Dynamic left ventricular outflow tract obstruction evoked by exercise echocardiography: prevalence and predictive factors in a prospective study.

@article{Zywica2008DynamicLV,
  title={Dynamic left ventricular outflow tract obstruction evoked by exercise echocardiography: prevalence and predictive factors in a prospective study.},
  author={K Zywica and Raphael Jenni and Patricia A. Pellikka and Anja Faeh-Gunz and Burkart Seifert and Christine Helena Attenhofer Jost},
  journal={European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology},
  year={2008},
  volume={9 5},
  pages={665-71}
}
AIMS In patients without hypertrophic obstructive cardiomyopathy (HOCM), dynamic left ventricular outflow tract obstruction (DLVOTO) can cause ischaemia. Little is known about incidence and predictors of DLVOTO in patients without HOCM. METHODS AND RESULTS In 300 patients referred for exercise echocardiography, assessment of DLVOTO at rest and with Valsalva and of the presence of systolic anterior motion of the mitral valve leaflets (SAM) was performed. Within 90 s post-exercise, wall motion… CONTINUE READING