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目的研究探讨无人区心电轴在宽QRS波群心动过速诊断中的应用价值。方法随机选取2015年1月至2016年1月就诊的宽QRS波群心动过速100例患者为研究对象,回顾性分析患者同步12导联心电图特征,目测判断I、aVF导联心电轴以确定是否存在无人区心电轴。结果所有患者经心脏电生理检查后,明确有65例患者为室性心动过速,26例患者为室上性心动过速伴室内差异性传导,9例患者为室上性心动过速伴预激综合征。经过目测判断I、aVF导联心电轴后,65例室性心动过速患者中有58例存在无人区心电轴(89.23%),而室上性心动过速伴室内差异性传导及室上性心动过速伴预激综合征患者中无1例存在无人区心电轴。结论无人区心电轴能很好的诊断及鉴别宽QRS波群心动过速的类型,具有较高的特异性、准确率以及操作的简便性,可作为诊断及鉴别诊断宽QRS波群心动过速的重要手段,值得临床上进一步应用推广。
Objective To study the value of unmanned electrocardiographic axis in the diagnosis of wide QRS complex tachycardia. Methods A total of 100 patients with wide QRS tachycardia who were referred to our hospital from January 2015 to January 2016 were selected as the research objects. The 12-lead electrocardiogram characteristics of patients were retrospectively analyzed. The ECG axis of I and aVF leads Determine the existence of unoccupied cardiac axis. Results All patients underwent cardiac electrophysiological examination, 65 patients were clearly ventricular tachycardia, 26 patients were supraventricular tachycardia with intra-ventricular differential conduction, 9 patients were supraventricular tachycardia with pre- Irritable syndrome. After visualization of the I / aVF lead ECG axis, 58 of 65 patients with ventricular tachycardia had unmanned electrocardial axis (89.23%), while supraventricular tachycardia with indoors differential conduction and None of the patients with supraventricular tachycardia and pre-excitation syndrome had an unmanned cardiac axis. Conclusion The ECG axis in unmanned area can diagnose and identify the type of wide QRS complex tachycardia with high specificity, accuracy and ease of operation, which can be used as a diagnostic and differential diagnosis of wide QRS complex An important means of speeding, it is worth to further promote the clinical application.