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患者女性,47岁。因阵发性心悸,头晕4年,复发2小时,以特发性室性心动过速收入院。查体:心血管无异常体征。ECG:窦性心律,频发室早,短阵室速。动态心电图示:①窦性心动过速。②室性早搏。③频发室性早搏(9051次/24h,其中短阵室速3阵次。)④ST-T正常。二维心脏超声示:心脏各腔室大小正常。肝、肾功能正常。食道心脏电生理诊断:右室特发性室性心动过速,房室结双通道。在局麻下行射频消融术治疗室性心动过速,靶点消融后重复心房及心室递增起搏与程序刺激未诱发出室速,遂以异丙肾上腺素0.5mg加入生理
Patient female, 47 years old. Due to paroxysmal palpitations, dizziness 4 years, 2 hours relapse, idiopathic ventricular tachycardia income hospital. Physical examination: no abnormal signs of cardiovascular disease. ECG: sinus rhythm, frequent premature ventricular tachycardia. Holter ECG: ① sinus tachycardia. ② premature ventricular contractions. ③ frequent ventricular premature beats (9051 times / 24h, of which maneuvers 3 times.) ST-T normal. Two-dimensional cardiac ultrasound showed: the size of the normal heart chamber. Liver, kidney function is normal. Diagnosis of esophageal cardiac electrophysiology: Right ventricular idiopathic ventricular tachycardia, atrioventricular node dual channel. Radiofrequency catheter ablation in local anesthesia for the treatment of ventricular tachycardia, ablation of the target after repeated atrial and ventricular ascending pacing and procedural stimulation did not induce ventricular tachycardia, then isoproterenol 0.5mg added to the physiology