正常新生儿生后7天经皮胆红素值的临床分析

目的:提供常州地区正常新生儿生后7天经皮胆红素(TcB)值,得出胆红素的平均峰值,为临床诊断奠定基础并制定一份适合本地区新生儿小时TcB百分位列线图。方法:2010年1～3月679例健康足月和近足月新生儿采用JH20-1B型经皮黄疸仪测量获得7 482个TcB测量值,检测时间为生后12 h直至出生后152 h。计算每1个指定时段的TcB百分位数,用于制定按小时绘制的列线图。结果:①正常新生儿生后12～152 h不同时间点的TcB不同,生后116 h达高峰,新生儿高胆红素血症(TcB≥12.9 mg/dl)占8.4%(57/679),出院后随访无1例发生胆红素脑病。②制定的TcB列线图反映了正常新生儿生后7天的TcB水平自然史。胆红素的平均峰值为(10.0±2.2)mg/dl,胆红素第40百分位为8.3 mg/dl,第75百分位为10.8 mg/dl,第95百分位为12.6 mg/dl。③在围产因素中,TcB水平与胎龄、胎膜早破、头颅血肿差异有统计学意义(P<0.05)。结论:本地区正常新生儿黄疸出现的时间、高峰的时间与国内外报道相似;正常新生儿高胆红素血症的诊断标准应高于现行标准,从而高胆红素血症的干预标准也应相应提高。

Clinical analysis on transcutaneous bilirubin value of normal neonates at 7 days after birth

Objective:To provide the transcutaneous bilirubin(TcB) value of normal neonates at 7 days after birth in Changzhou region,obtain the average peak value of TcB,provide a basis for clinical diagnosis,draft an hour-specific TcB percentile nomogram suitable for the neonates in the region.Methods:7 482 TcB values were obtained from 679 healthy full term neonates and near full term neonates by JH20-1B percutaneous jaundice apparatus from January to March in 2010,the detection time was from 12 hours after birth un...