论文部分内容阅读
室上性阵发性心动过速伴完全性电交替较为少见,现将我们最近遇到的一例报告如患者男性,28岁,农民,因鼻息肉收入本院五官科。术前心电图连续描记的Ⅱ导联(附图)示窦性心律。上行P_3、P_8、P_(13)提早出现,重叠于T波中,呈负正双相,与窦性P波形态明显不同,P′-R间期0.16秒,为房性早搏。下行自P_3开始连续出现一系列规则倒置的P波,P-P间期0.38秒,其后QRS波群呈室上型,P′-R间期0.14秒,R-P′间期0.24秒,为室上性阵发性心动过速。其P-QRS-T均见明显的电交替(total electrical alternans)现象,如下行第8、10,12、14、16……个P波倒置相对较浅,QRS波群呈Rs型,R波较高,其后T波亦相对较高;而第9、11、13、15、17……,P波倒置较深,QRS波群呈qRs型,R波较低,其后T波也略低。
Supraventricular tachycardia associated with complete sexual alternation is relatively rare, now we have recently encountered a case such as patients male, 28-year-old farmer, due to nasal polyps received in our hospital ENT. Preoperative ECG continuous tracing II lead (with photos) shows sinus rhythm. Upstream P_3, P_8 and P_ (13) appeared earlier and overlapped in T wave, showing positive and negative biphasic, which was obviously different from sinus P wave morphology. The P’-R interval was 0.16 second, which was premature atrial premature. Downstream from P_3 began a series of regular inverted P wave, PP interval of 0.38 seconds, then QRS complex was supratentorial, P’-R interval of 0.14 seconds, RP ’interval of 0.24 seconds for the supraventricular Paroxysmal tachycardia. The P-QRS-T showed obvious electrical alternating (total electrical alternans) phenomenon, such as the next 8,10,12,14,16 ...... P wave inversion is relatively shallow, QRS complex was Rs type, R wave Higher, followed by T wave is relatively high; and 9,11,13,15,17 ..., P wave deeper inversion, QRS complex was qRs type, R wave is low, followed by T wave is also slightly low.