患者女性,78岁,临床诊断:冠心病。记录心电图前2周内无药物治疗史。附图(见第170页)Ⅱ、Ⅲ导联未见直立P,随R波之后均跟有逆行P~-波,R-P~-逐搏延长,P~--P~-逐搏缩短,最后出现长P~--P~-,来见正常QRS后P~-脱漏。仅见R-P~-延长至0.18—0.20秒后出现一畸形的QRS距前一QRS<0.50秒,畸形QRS出现在周期突然缩短时,系反复心搏伴室内差异性传导。多数R-R间距为0.84—0.88秒,即室率71—68次/分。Ⅱ导联R_2-R_3、R_4-R_5间距为1.28秒,与R_7-R_9相等,R_8为显性反复心搏,推测在R_2-R_3、R_4-R_5中有隐匿性反 Female patient, 78 years old, clinical diagnosis: coronary heart disease. There was no history of medication within 2 weeks before ECG recording. There is no upright P in leads Ⅱ and Ⅲ in the figure (see page 170). After R-wave followed by retrograde P ~ -wave and RP ~ -beat-beat extension, P ~ -P ~ Appear long P ~ - P ~ -, to see the normal QRS P ~ - leakage. Only see R-P ~ - extended to 0.18-0.20 seconds after the occurrence of a deformed QRS QRS <0.50 seconds from the previous, abnormal QRS appeared in the cycle suddenly shortened, the Department of repeated heart rate with ventricular differential conduction. Most R-R spacing of 0.84-0.88 seconds, that is, chamber rate of 71-68 beats / min. Ⅱ lead R_2-R_3, R_4-R_5 spacing of 1.28 seconds, and R_7-R_9 equal, R_8 dominant repeated heartbeat, presumed R_2-R_3, R_4-R_5 in the occult anti