静脉心肌对比超声心动图可预测肥厚型梗阻性心肌病经皮腔内室间隔心肌消融术后左心室流出道压力阶差的复发情况。
Intravenous myocardial contrast echocardiography can predict recurrence of pressure gradient of left ventricular outflow tract in hypertrophic obstructive cardiomyopathy after percutaneous transluminal septal myocardial ablation.
作者信息
Suna Sinichiro, Nishino Masami, Sawada Tamaki, Egami Yasuyuki, Shutta Ryu, Tanouchi Jun, Yamada Yoshio
机构信息
Division of Cardiology, Osaka Rosai Hospital, 1179-3, Nagasone-cho, Kita-ku, Sakai-city, Osaka 591-8025, Japan.
出版信息
J Cardiol Cases. 2009 Nov 8;1(1):e25-e27. doi: 10.1016/j.jccase.2009.06.005. eCollection 2010 Feb.
Abstract
Percutaneous transluminal septal myocardial ablation (PTSMA) is appropriate in patients who are refractory to medical treatments for hypertrophic obstructive cardiomyopathy (HOCM). However, about 10% of patients show recurrence of left ventricular outflow tract pressure gradient (LVOG) after PTSMA and need repeat PTSMA. The authors describe two HOCM cases who underwent intravenous myocardial contrast echocardiography (IVMCE) at two weeks after PTSMA. IVMCE revealed the total defect of the PTSMA area in one patient, a 69-year-old woman. This patient has shown no recurrence of LVOG for 4 years. Faintly stained PTSMA area by IVMCE was seen in the other patient, an 83-year-old woman. This patient had a recurrence of LVOG 3 months later. Therefore, in conclusion, IVMCE might predict recurrence of LVOG after PTSMA.
摘要
经皮腔内室间隔心肌消融术（PTSMA）适用于药物治疗无效的肥厚性梗阻性心肌病（HOCM）患者。然而，约10%的患者在PTSMA后出现左心室流出道压力阶差（LVOG）复发，需要再次进行PTSMA。作者描述了两例HOCM患者，他们在PTSMA后两周接受了静脉心肌对比超声心动图（IVMCE）检查。IVMCE显示，在一名69岁女性患者中，PTSMA区域完全缺损。该患者4年来未出现LVOG复发。在另一名83岁女性患者中，IVMCE显示PTSMA区域染色较淡。该患者在3个月后出现LVOG复发。因此，综上所述，IVMCE可能预测PTSMA后LVOG的复发。
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