Section of Cardiology, Department of Medicine, Louisiana State University Health Sciences Center, New Orleans, Louisiana.
Heart and Vascular Center, Touro Infirmary, New Orleans, Louisiana.
Am J Cardiol. 2018 Sep 15;122(6):1111-1112. doi: 10.1016/j.amjcard.2018.05.041. Epub 2018 Jun 23.
In a 45-year-old woman with syncope, an electrocardiogram revealed intermittent asymptomatic type I second degree atrioventricular block, right bundle branch block and left anterior fascicular block. An echocardiogram documented concentric left ventricular hypertrophy and right ventricular dilatation and hypokinesia. Because the patient did not have second degree atrioventricular block at the time of an electrophysiological study, the atrioventricular node, the left posterior fascicle, and the His bundle all remain potential sites for the type I second degree atrioventricular block on her initial electrocardiogram.
在一名 45 岁的晕厥女性中，心电图显示间歇性无症状 I 型二度房室传导阻滞、右束支阻滞和左前分支阻滞。超声心动图记录到左心室肥厚和右心室扩张及运动减弱。由于患者在电生理研究时没有二度房室传导阻滞，房室结、左后分支和希氏束在她最初的心电图上仍然是 I 型二度房室传导阻滞的潜在部位。
