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患者男性,58岁。有高血压及慢性支气管炎病史,因心律不齐就诊。体检:BP150/100,心界不大,心率68次/分,律不齐,各瓣膜区未闻及病理性杂音。胸片示左房不大。心电图(附图,上两行和下两行分别为连续记录)示;窦性心律,心率70次/分,P-R0.14秒,QRS正常。第1行可见提早出现的P′波,落在前一心动的T波上,其后无QRS,为房早未下传。第2行中间部分连续出现4个P′波,频率渐快约为300次/分,为短阵房扑,R_5为房速下传产生。第3、4行分别出现1个和连续2个P′波未下传。第4行出现连续2个P波未下传。第2行R_6为窦性下传,理由为:1.其前P波形态与大多数窦性P波相同;2.R_(6-7)为窦性周期,3.R_(4-6)为1.58秒,与第3行R_(4-5)1.50秒
Male patient, 58 years old. Have a history of hypertension and chronic bronchitis, due to irregular heartbeat treatment. Physical examination: BP150 / 100, heart is not, heart rate 68 beats / min, irregular arrhythmia, the valve area is not known and pathological murmur. Chest radiograph showed little left atrium. ECG (the figure, the last two lines and the next two lines were recorded continuously); sinus rhythm, heart rate 70 beats / min, P-R0.14 seconds, QRS normal. The first line shows the early appearance of P ’wave, falling on the previous heartbeat T wave, followed by no QRS, for the room has not been downloaded. In the middle of the second row, four P ’waves appeared continuously, and the frequency was gradually increased by about 300 beats / min. Lines 1, 3 and 4 appear as 1 and 2 consecutive P ’waves are not transmitted. Line 4 appears two consecutive P wave is not transmitted. The second line of R_6 is sinus, for the following reasons: 1. The former P wave morphology and most sinusoidal P wave the same; 2.R_ (6-7) for the sinus cycle, 3.R_ (4-6) For 1.58 seconds, and line R_ (4-5) for 1.50 seconds