不同胎龄新生儿肢体导联QRS波群型态特点研究  

Characteristics of QRS wave pattern in limb leads of neonates with different gestational age

作　　者：陈娟 吴湘杰[1] CHEN Juan;WU XiangJie(Department of Functional Examination,Xi’an Fourth Hospital,Xi’an 710004)

机构地区：[1]西安市第四医院功能检查科,西安710004

出　　处：《陕西医学杂志》2020年第6期724-727,共4页Shaanxi Medical Journal

摘　　要：目的:比较不同胎龄新生儿同步12导联心电图肢体QRS波型态及各肢体导联Q波出现率的差异,为新生儿心电图诊断提供参考依据。方法:收集早产儿(胎龄<37周)68例和足月儿51例常规12导联心电图,根据胎龄分为三组,A组(30周≤胎龄<33周)32例,B组(33周≤胎龄<37周)36例,C组(37周≤胎龄≤40周)51例;对比心电图检查结果。结果:三组新生儿Ⅰ、avL导联多见负向S波占优势的rS型,Ⅱ、Ⅲ、avF、avR导联以正向R波占优势的qR、Rs型多见;新生儿额面导联Q波多出现在Ⅱ、Ⅲ、avF、avR导联,且Ⅲ、avF导联Q波出现率明显高于Ⅱ导联,avR导联Q波出现率接近于III导联;随着出生时胎龄的增加,各组Q波出现率明显增大。结论:新生儿Ⅰ、avL导联QRS波群以负向S波为主,Ⅱ、Ⅲ、avF、avR导联以正向R波为主;随出生时胎龄不同,其肢体导联QRS型态具有多样性,Ⅱ、Ⅲ、avF、avR导联Q波出现率随胎龄增加而呈上升趋势。Objective:To compare the difference of QRS wave pattern and Q wave occurrence rate of limb leads of synchronous 12-lead electrocardiogram(ECG)in neonates with different gestational age,and to provide reference for neonatal electrocardiogram diagnosis.Methods:The routine 12-lead ECG of 68 premature infants(gestational age<37 weeks)and 51 full term infants were collected.According to gestational age,they were divided into group A(30 weeks≤gestational age<33 weeks,32 cases),group B(33 weeks≤gestational age<37 weeks,36 cases)and group C(37 weeks≤gestational age≤40 weeks,51 cases).The routine 12-lead ECG was performed in each group of newborns within 1 hour after birth,and the results were compared.Results:In the three groups,negative S wave(rS type)predominated inⅠand avL leads,while positive R wave(qR type and Rs type)predominated inⅡ,Ⅲ,avF and avR leads.The Q wave of the frontal lead of the newborn usually appeared inⅡ,Ⅲ,avF and avR leads,and the incidence of Q wave inⅢand avF leads was significantly higher than that inⅡlead,and the incidence of Q wave in avR lead was close to that inⅢlead.With the increase of gestational age at birth,the incidence rate of Q wave in each group was significantly increased.Conclusion:Negative S wave predo minated inⅠand avL leads,while positive R wave predominated inⅡ,Ⅲ,avF and avR leads.The QRS pattern of limb lead varies with different gestational age at birth.The incidence rate of Q wave is increased with the increase of gestational age.

关 键 词：新生儿 早产儿 胎龄 心电图 QRS型态 Q波出现率 肢体导联 

分 类 号：R444[医药卫生—诊断学]