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病例,女性,72岁。临床诊断:冠心病。 心电图结果:为Ⅱ导联连续描记,见P波按序出现,P-P0.73-0.75s。图中所出现的波长R-R所分割为三组文氏周期,每组文氏周期之P-R由0.24→0.40→0.42s,在0.42s下传的QRS波后又出现逆P(P＇)波,R-P＇为0.20s,由P＇波出现后结束一次文氏周期,周而复始。未见窦P波后的QRS波脱落,而由P＇波代替了一次窦性P波。 心电图诊断:不典型Ⅱ°Ⅰ型房室传导
Case, female, 72 years old. Clinical diagnosis: coronary heart disease. ECG results: for the lead II continuous tracing, see P waves appear in order, P-P0.73-0.75s. The wavelength RR appearing in the figure is divided into three groups of Wen’s cycles, and the PR of each group of Wen’s cycles is from 0.24 → 0.40 → 0.42s, and the inverse P (P ’) wave appears after the QRS waves propagate at 0.42s, RP ’is 0.20 s, ending with a Wen’s cycle after the P’ wave appears, going round and round again. No QRS wave after sinus wave P wave off, but by P ’wave instead of a sinus P wave. ECG diagnosis: atypical type Ⅱ ° Ⅰ atrioventricular conduction