Improvement of (eft ventricular diastolic function after alcohol septai ablation for obstructive hypertrophic cardiomyopathy? Yes, of course, but...

摘要

Recently, I have read with a great interest a very important paper by Jassal et al.1 The authors reported their results of non-invasive evaluation of. left ventricular (LV) diastolic function in 30 selected patients with a highly symptomatic obstructive hypertrophic cardiomyopathy (HCM) treated by alcohol septai ablation (ASA). The authors concluded that positive changes in Doppler variables are likely to be due to the improvement of LV relaxation following ASA. Similarly, we have shown the improvement of isovolumic relaxation time after ASA and, moreover, the improvement of Tei index which incorporates both systolic and diastolic time intervals for expressing global ventricular performance.2 However, in fact, the observation by Jassal et al. is the first study to provide a comprehensive evidence that ASA leads to sustained improvement in LV diastolic function.