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1 临床资料 例1,患者男性,27岁,发作性胸闷10天。以“病毒性心肌炎”收住院。查体:血压120/80mmHg;心率83次/分,心律齐,心界不大,单导心电图(ECG)示:间歇性Ⅰ度房室传导阻滞。行食道心房调搏检查(TEAP),S1S2程序刺激法,注射阿托品前窦性节律75次/分,P-R间期420毫秒;660～460毫秒均为慢径传导,注射阿托品(1mg)后,慢径出现特殊的文氏现象及短阵非阵发交界性心动过速,频率90～103次/分;递增起搏及扫描刺激可见房室跳跃传导,提示房室结双径路。
1 clinical data Example 1, male patient, 27 years old, onset of chest tightness for 10 days. To “viral myocarditis” admitted to hospital. Physical examination: blood pressure 120 / 80mmHg; heart rate 83 beats / min, heart rate Qi, heart is not big, single-lead ECG: Intermittent Ⅰ degree atrioventricular block. The esophageal atrial pacing test (TEAP), S1S2 program stimulation, sinus rhythm before injection of atropine 75 beats / min, PR interval of 420 milliseconds; 660 ~ 460 milliseconds are slow path conduction, injection of atropine (1mg), slow Diameter appeared special Wen’s phenomenon and a burst of non-paroxysmal border tachycardia, frequency of 90 to 103 beats / min; ascending pacing and scanning stimulation can be seen atrioventricular jump conduction, suggesting atrioventricular node dual pathway.