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患儿男性,3.5岁,1990年4月15日因“感冒”来院门诊。心电图(附图)P 波顺序出现,P-P0.46—0.52s(130—125次/min),为窦性心动过速。肢导联呈2:1房室下传,下传时 P-R 间期固定于0.14s,QRS 宽0.12s,呈完全性右束支阻滞(CRBBB),R-R0.92s(65次/min)。V_1R_(1、2)仍为2:1下传心搏,P-R 仍为0.14s;R_(1、2)外形略有变异,可能与胸导联随呼吸变动有关。R_3变窄为0.10s,外形变为 Rs 型,P-R 缩短为0.13s。R_4更窄,为0.08s,呈 rS 型,伴 P-R0.12s。R_5时限0.08s,s 波较 R_4更深,伴 P-R0.11s。R_6时
Children with children, 3.5 years old, April 15, 1990 due to “cold” to hospital. Electrocardiogram (with photos) P wave order, P-P0.46-0.52s (130-125 beats / min), sinus tachycardia. The leads of the limbs were delivered 2: 1 atrioventricularly, and the PR interval was fixed at 0.14s and the QRS width was 0.12s, with complete right bundle branch block (CRBBB) and R-R 0.92s (65 beats / min ). V_1R_ (1,2) is still 2: 1 beats heartbeat, P-R is still 0.14s; R_ (1,2) slightly variant appearance may be related to the chest lead with respiratory changes. R_3 narrowed to 0.10s, the shape became Rs type, P-R shortened to 0.13s. R_4 more narrow, 0.08s, was rS type, with P-R0.12s. R_5 time 0.08s, s wave deeper than R_4, with P-R0.11s. R_6