Faber L, Seggewiss H, Ziemssen P, Gleichmann U
Department of Cardiology, Heart Center NRW, Ruhr University of Bochum, Bad Oeynhausen, Germany.
Catheter Cardiovasc Interv. 1999 Aug;47(4):462-6. doi: 10.1002/(SICI)1522-726X(199908)47:4<462::AID-CCD16>3.0.CO;2-9.
Percutaneous transluminal septal myocardial ablation (PTSMA) has been introduced as an alternative to surgery for symptomatic hypertrophic obstructive cardiomyopathy (HOCM). Visualization of the ablation area prior to induction of the chemical necrosis is possible by intraprocedural myocardial contrast echocardiography (MCE). We report on two patients in whom MCE showed opacification of the medial papillary muscle or the left ventricular posterolateral free wall. In both patients the correct ablation area could be identified by MCE after a change of the target vessel, thus avoiding potentially fatal complications due to induction of a necrosis of myocardium distant from the septal target area.
经皮腔内室间隔心肌消融术（PTSMA）已被引入，作为有症状的肥厚性梗阻性心肌病（HOCM）手术治疗的替代方法。术中经心肌对比超声心动图（MCE）可在化学性坏死诱导前可视化消融区域。我们报告了两名患者，MCE显示内侧乳头肌或左心室后外侧游离壁显影。在两名患者中，通过更换靶血管后，MCE均可确定正确的消融区域，从而避免了因诱导远离间隔靶区域的心肌坏死而导致的潜在致命并发症。
