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目的 :研究阵发性折返性室上性窄QRS波心动过速终止后倒置T波的临床意义。方法 :对 71例自发折返性 (房室结折返或房室折返 )室上性窄QRS波心动过速终止后倒置T波的患者行运动心电图试验、运动铊心肌灌注显像及冠状动脉造影。结果 :心动过速终止后 ,30例 (4 2 .3% )出现倒置T波 ,均行运动心电图试验 ,5例呈阳性改变的病例行运动铊心肌灌注显像 ,3例呈铊阳性改变的病例冠状动脉造影显示 1支血管管腔直径≥75 %的明显狭窄 ,但均无冠心病的临床表现。结论 :阵发性折返性室上性窄QRS波心动过速终止后倒置T波代表一种常见的现象 ,可能持续存在一段时间 ,根据常见的临床和心电图指标不能预测其是否发生。冠心病似乎不是这种复极异常的原因
Objective: To study the clinical significance of inverted T waves after termination of paroxysmal suprarenal superior narrow QRS tachycardia. Methods: A total of 71 patients with spontaneous reentrant (atrioventricular nodal reentry or atrioventricular reentrant) supraventricular tachycardia (QRS tachycardia) were retrospectively analyzed with electrocardiogram (ECG), exercise thallium perfusion imaging and coronary angiography. Results: T wave inversion occurred in 30 patients (42.3%) after tachycardia termination. All patients underwent exercise electrocardiogram (ECG) test. Five patients were positive for thallium myocardial perfusion imaging and three patients were positive for thallium Coronary angiography showed a significant stenosis of ≥175% of the vessel lumen diameter, but no clinical manifestations of coronary heart disease. CONCLUSIONS: Inversion of T wave after termination of paroxysmal supraventricularly narrowing QRS tachycardia represents a common phenomenon that may persist for some time and its occurrence can not be predicted based on common clinical and electrocardiographic indicators. Coronary heart disease does not seem to be the cause of this complex abnormalities