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患者男性,54岁。临床诊断:风心病。心电图(附图,见第172页)基本心律为房颤。V_1中R_(4、11)和V_3中R_(3、11-13)。之前皆有相对较长之R-R间期,本身呈右束支阻滞图形,符合Ashman现象,为时相性室内差异传导,V_3中R_(11)-R_(13)则为右束支内蝉联现象。然而V_3中R_9-R_(10)与R_(17)-R_(18)皆为0.51秒,比R_(11)(配对间期0.37秒)更早发生之R_(19)(配对间期0.34秒)却继以正常QRS波,类
Male patient, 54 years old. Clinical diagnosis: rheumatic heart disease. ECG (with photos, see page 172) The basic rhythm is atrial fibrillation. R_ (4,11) in V_1 and R_ (3,11-13) in V_3. Previously, there was a relatively long RR interval, itself showed a right bundle branch block pattern, in line with the Ashman phenomenon, the indoor phase difference of conduction, V_3 R_ (11) -R_ (13) is the right bundle branch cicada phenomenon . However, R_9-R_ (10) and R_ (17) -R_ (18) in V_3 were all 0.51 s, which was earlier than R_ (11) (pairing interval 0.37s) ) Following the normal QRS wave, class