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2.心电图改变:例1于1986年12月9日上午11:30呈CRBB+CLAH+Ⅰ°～Ⅱ°2:1LPH;同日下午2:30呈CRBB+CLAH+Ⅰ°LPH;同日下午5:30为完全房分离(三束支阻滞)+右室上部逸搏心律。1987年1月15日,呈正常心电图。例2于1988年10月12日示Ⅰ°LBBB;12月7日示Ⅱ°Ⅱ型RBB+CLAHⅠ°重型～Ⅱ°Ⅱ型3:2LAH;12月14日凌晨2:25时示CAVBB+室性停搏,2:30经复苏术后为缓慢多源性室性逸搏心律。静滴异丙肾上腺素后呈不完全房室分离加速室性逸搏心律,部分窦性下传呈LBB,进而恢复窦性心律+LBB。例3于1988年11月3日,呈CAVBB+右室高位逸搏心律(Ⅰ°RBB+Ⅰ°LPH)。同年11月16日,恢复正常心电图。例4心电图变化,于1988年10月6日下午3:30呈Ⅲ°窦房传导阻滞+缓慢房室性逸搏心律+Ⅰ°RBB+CLAP+Ⅰ°LPH+左室高位频发室早,有连发,次日下午4时,呈窦性心律+低位偶发室早。3.拟诊病因;例1和例3诊断为急性病毒性心肌炎.例2为慢性病毒性心肌炎,例4为原为性心肌病扩张型。
2. Electrocardiogram changes: Example 1 CRBB + CLAH + Ⅰ ° ~ Ⅱ ° 2: 1LPH at 11:30 am on December 9, 1986; CRBB + CLAH + Ⅰ ° LPH at 2:30 pm on the same day; at 5: 30 for the complete separation of the room (three bundle branch block) + rhythm of upper right heart rhythm. January 15, 1987, was normal ECG. Example 2 showed I ° LBBB on October 12, 1988; on December 7 I showed type Ⅱ ° Ⅱ RBB + CLAHⅠ ° heavy to Ⅱ ° Ⅱ type 3: 2 LAH; on December 14 at 2:25 am, I showed CAVBB + Cardioplegia, 2:30 after the recovery for the slow multi-source ventricular escape rhythm. After intravenous infusion of isoproterenol showed incomplete atrioventricular separation accelerated atrial rhythm, part of the sinusoid was LBB, and then restore sinus rhythm + LBB. Example 3 On November 3, 1988, there was CAVBB + right ventricular extrasystoles ventricular arrhythmia (Ⅰ ° RBB + Ⅰ ° LPH). November 16 the same year, return to normal ECG. Example 4 ECG changes, at 3:30 pm on October 6, 1988 was Ⅲ ° sinoatrial block + slow atrioventricular paces rhythm + Ⅰ ° RBB + CLAP + Ⅰ ° LPH + high frequency of left ventricular premature ventricular contractions, There are bursts, the next day at 4 pm, showed sinus rhythm + low sporadic room early. 3. The proposed etiology; cases 1 and 3 diagnosed as acute viral myocarditis .2 cases of chronic viral myocarditis, 4 cases of the original cardiomyopathy dilatation.