T-wave characteristics of electrocardiogram in newborn Infants with different gestational age
10.3760/cma.j.issn.1673-4912.2010.03.013
- VernacularTitle:不同胎龄新生儿心电图T波的特点
- Author:
Li LI
;
Baodong PANG
;
Yingyu LI
;
Lijuan WANG
;
Fenglan WANG
;
Jin WANG
;
Yanan KAN
- Publication Type:Journal Article
- Keywords:
Electrocardiogram;
Gestational age: Infant,newborn: T-wave
- From:
Chinese Pediatric Emergency Medicine
2010;17(3):227-229
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluated T-wave characteristics in newborn infants with different gestational age. Methods One hundred and forty-two newborn infants were divided into four groups based on the gestation age consisting of the 28～30 weeks group,31～33 weeks group,34～36 weeks group and 37～40weeks group, respectively. The T-wave characteristics of electrocardiogram were compared among the newborn infants of four groups. Results TV1 amplitudes ( mV, median ( interquartile range) ) of 4 groups were -0. 10( -0. 30～0. 10), -0. 10( -0. 30～0. 15), -0. 10( -0. 45～0. 25 ) and 0. 10( -0. 30～0. 70) ,respectively. There was a statistical elevation of TV1 amplitude with the increase of the gestational age. TV5 amplitudes( mV, median ( interquartile range ) ) of 4 groups were 0. 10 ( - 0. 10～0. 30), 0. 10 ( - 0. 20～0. 30) ,0. 15( -0. 05～0. 25) and 0. 10( -0. 10～0. 50) ,respectively. No significant differences of TV5 amplitudes were found among 4 groups. The incidences of low or inverted T-waves in leads I and aVL, or low and flat T-waves in all leads reduced significantly with the increase of the gestational age. Conclusion The TV1 amplitude and the incidence of abnormal T-wave in newborn infants are correlated to the gestational age,and TV5 amplitude is not correlated to the gestational age.
