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频率依赖性房间传导阻滞已被提出。但国内鲜有报道。最近我们遇到一例,考虑与快频率依赖性Bachmann束阻滞有关。报道如下。病历摘要和心电图资料患者女,32岁,因心悸、胸闷两天来院门诊。起病前2周有感冒病史,平时体健。体验体温37.2℃,心率90次,律不齐,早搏约8次,心尖部第一心音稍减低,闻及Ⅰ—Ⅱ收缩期吹风样杂音,余各瓣膜区均未闻及杂音,双肺呼吸音清晰。血沉30mm/h,白细胞总数11000,中性80％,淋巴20％。胸片见心影稍扩大,心电图记录见附图、临床拟诊急性病毒性心肌炎。心电图分析图中上下两行为Ⅱ导联连续记录。前3个P波和最后4个P波呈正常圆顶直立型,P波宽度0.11秒,P—P间距为0.93～0.96秒,第4～11
Frequency-dependent room block has been proposed. However, there are few reports in China. We recently encountered a case to consider and fast frequency-dependent Bachmann beam retardation. Reported as follows. Patient history and ECG data Female, 32 years old, due to heart palpitations, chest tightness, two days to hospital. 2 weeks before onset of a cold history, usually healthy. Experience the body temperature of 37.2 ℃, 90 heart rate, irregular heartbeat, premature beat about 8 times, apical first heart sound slightly reduced, smell and Ⅰ-Ⅱ systolic hair-like murmur, I valve area were not heard any noise, lungs Breath sounds clear. ESR 30mm / h, the total number of white blood cells 11000, 80% neutral, lymphatic 20%. See the chest X-ray slightly enlarged chest X-ray, electrocardiogram records see the photos, clinical diagnosis of acute viral myocarditis. ECG analysis of the upper and lower two lines for the Ⅱ lead continuous record. The first three P waves and the last four P waves were normal dome upright with a P wave width of 0.11 seconds, a P-P separation of 0.93 to 0.96 seconds, and a fourth to 11th