心脏不同部位的微波消融比较  

EFFECT OF MICROWAVE ABLATION ON DIFFERENT HEART TISSUES

作　　者：汪爱虎[1] 许群[1] 庄亚纯[1] 顾菊康[1] 庄文燕[1] 

机构地区：[1]上海市第一人民医院心内科

出　　处：《中国循环杂志》1995年第9期542-543,共2页Chinese Circulation Journal

摘　　要：利用２４５０ＭＨｚ微波（固定功率５０Ｗ，消融时间３０秒），对离体猪心脏不同部位组织进行消融比较。结果：左室前壁损伤范围大于左室乳头肌、主动脉瓣和二尖瓣环下以及右侧房室交界区（Ｐ＜０．０５）；室间隔的损伤范围大于右侧房室交界区（Ｐ＜０．０５）；主动脉瓣环下、二尖瓣环下及右侧房室交界区损伤范围之间无显著差异（Ｐ＞０．０５）；５０Ｗ、３０秒的能量可引起左右心房、右室前壁的透壁性损伤，但无穿孔。结论：同等微波条件下，消融心脏不同部位的组织，其损伤范围有显著差异。应依据组织的性质，选择合适的消融功率及时间。The lesion sizes of microwave ablation on different portions of pig heart in vitro were compared at a fixed power output (50 W, 2450 MHz)and a fixed duration (30sec)of ablation. Results:The lesion dimensions of anterior wall of left ventricle was larger than that of musculi papillaris sinister ,tissues under mitral and aortic annulus,right side of atrioventricular (AV) junction (p<0. 05) ;and the lesion dimensions of interventricular septum was larger than that of right side of AV junction (p<0. 05). The differences of lesion dimensions between tissues under mitral and aortic annulus and right side of AV junction were not significant (p>0. 05). Transmural lesions in the left and right atrial myocardium and anterior wall of right ventricle were found,but with no perforation.Conclusions: The differences of lesion dimensions in different portions of heart tissue ablated under the same condition are significant. A suitable power output and duration of ablation should be selected accordingly.

关 键 词：心脏 猪 消融 微波消融 

分 类 号：R454.1[医药卫生—治疗学] R331.38[医药卫生—临床医学]