[Comparable effects of percutaneous transluminal septal myocardial ablation and subaortic ventriculotomy in treating patients with hypertrophic obstructive cardiomyopathy, an echocardiography follow-up study].
OBJECTIVE
To compare the effect of percutaneous transluminal septal myocardial ablation (n = 20) with subaortic ventriculotomy (n = 17) in patients with hypertrophic obstructive cardiomyopathy by echocardiography.


METHODS
The pre- and post-operation (1 week post procedure) gradients of left ventricular out flow (LVOTGs) were measured by echocardiography.


RESULTS
Post operation LVOTGs were significantly reduced than that of pre-operation in patients treated with either percutaneous transluminal septal myocardial ablation [(36 +/- 20) vs. (99 +/- 19) mm Hg (1 mm Hg = 0.133 kPa), P < 0.05], or subaortic ventriculotomy [(28 +/- 17) vs. (117 +/- 32) mm Hg]. Post operation LVOTGs were also similar with the two procedures [(36 +/- 20) vs. (28 +/- 17) mm Hg, P > 0.05].


CONCLUSIONS
Percutaneous transluminal septal myocardial ablation is as effective as subaortic ventriculotomy in treating patients with hypertrophic obstructive cardiomyopathy.
Li
Jing
J
Department of Cardiology, Beijing Hospital, Beijing 100730, China.
Liu
Yan-ling
YL
He
Qing
Q
Qiao
Shu-bin
SB
Feng
Wei
W
Lü
Xiu-zhang
XZ
Zhu
Zhen-hui
ZH
Ling
Yan
Y
Wang
Jian-peng
JP
D000328:Adult; D002312:Cardiomyopathy, Hypertrophic / Q000000981:diagnostic imaging* / Q000601:surgery*; D017115:Catheter Ablation / Q000379:methods*; D004452:Echocardiography; D005260:Female; D006346:Heart Septum / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged