新西兰兔实验性高前壁心肌坏死的Wilson和头胸导联的定位诊断  

Localization of acute experimental myocardial necrosis in high anterior wall by Wilson and head-chest lead

作　　者：周翔[1] 尹炳生[1] 

机构地区：[1]第一军医大学基础部心电研究中心,广东广州市510515

出　　处：《心血管康复医学杂志》2002年第5期390-392,共3页Chinese Journal of Cardiovascular Rehabilitation Medicine

基　　金：国家自然科学基金资助项目(39270647).

摘　　要：目的:比较新西兰兔实验性高前壁心肌坏死Wilson和头胸（head-chest,HC）导联的定位诊断。方法:采用冰乙酸化学腐蚀法复制高前壁心肌坏死的动物模型30只.记录心表心电图加以确认,再记录胸背体表70点的ECG。根据病理性Q波出现和分布范围的不同,判断两种导联定位诊断的差异。结果:Wilson导联在胸背部区域都记录到病理性Q波,而HC导联仅在胸部小范围内记录到病理性Q波,同一测试点两种导联记录到的病理性Q波的例数,经配对计数资料的x2检验有显著性差异（P<0.05）,同一试点HC导联病Q波阳性率显著少于Wilson导联。结论:Wilson导联记录到病理Q波的范围过于广泛,而HC导联则相对集中,与心肌坏死区域相当,故HC导联对于高前壁心肌坏死定位诊断的价值优于Wilson导联。Objective: Compare the localization of acute experimental myocardial necrosis in high anterior wall by Wilson and head-chest (HC) lead. Methods: Acute myocardial necrosis of 30 New-Zealand rabbits was reproduced by the quantitative chemical injury with glacial acetic acid and corroborated by pericardial ECG. ECG at 70 points on chest and back surface were recorded by Wilson lead and HC lead simultaneously. The difference between two leads to localize the necrosis was judged by the emergence and distribution of pathologic Q wave. Results: Pathologic Q wave appears at many points in broad expanse of the surface of back and chest by Wilson lead. while at a few points on the surface of anterior part of chest in HC lead. X2 verification of paired enumerated information shows their significant difference(P<0. 05) see also tablel. Conclusion:Distribution zone of pathologic Q wave recorded by Wilson lead is much wider than that by HC lead. HC lead. But distribution zone of pathologic Q wave recorded by HC lead is more concentration, so for necrosis localization in high anterior wall HC lead possesses more value.

关 键 词：定位诊断 新西兰兔 高前壁心肌坏死 WILSON导联 头胸导联 病理性Q波 

分 类 号：R542.204[医药卫生—心血管疾病]