影响足月新生儿脐带脱落时间相关因素的研究

Influencing factors of umbilical cord separation in full-term newborns

摘要:

目的：分析影响足月新生儿脐带脱落时间的相关因素。方法：观察337例足月新生儿脐带脱落时间，并对性别、胎龄、体重、脐带结扎位置、脐残端长度、脐带直径、脐带贴卫生、医护人员及家属手卫生、脐部感染等14项相关因素进行单因素分析和多因素非条件logistic回归分析。结果：单因素相关分析发现脐带结扎位置、脐残端长度、脐带直径、脐带贴卫生、脐部感染对脱脐时间有影响（P<0.05）。其中脐带结扎位置、脐残端长度、脐带贴卫生、脐部感染是影响新生儿脐带脱落时间主要因素。结论：脐带结扎位置<0.5 cm、脐带残端保留<0.5 cm、保持脐带贴卫生、预防脐部感染有助于脐带尽早脱落。［中国当代儿科杂志，2010，12(11)：867-869］

Abstract:

OBJECTIVE: To investigate the influencing factors for the time of umbilical cord separation in full-term newborns. METHODS: The time of umbilical cord separation was recorded in 337 full-term newborns. Single factor and multifactor unconditioned logistic regression were performed to investigate the influencing factors of umbilical cord separation. Fourteen possible factors associated with the time of umbilical cord separation, including sex, gestational age, body weight, position of umbilical cord ligature, length of umbilical cord stump, umbilical cord diameter, cleanness of umbilical cord paster, hand cleanness of medical staff and family members and umbilical infection, were involved. RESULTS: The single factor correlative analysis demonstrated that the position of umbilical cord ligature, length of umbilical cord stump, umbilical cord diameter, cleanness of umbilical cord paster, and umbilical infection were influencing factors for the time of umbilical cord separation (P<0.05). The multifactor unconditioned logistic regression analysis demonstrated four major influencing factors for umbilical cord separation: position of umbilical cord ligature, length of umbilical cord stump, cleanness of umbilical cord paster, and umbilical infection. CONCLUSIONS: The following factors contribute to early separation of umbilical cord: the proper position of umbilical cord ligature (<0.5 cm to umbilical ring), the umbilical cord stump of <0.5 cm, keeping the umbilical cord paster clean and the prevention of umbilical infection.［Chin J Contemp Pediatr, 2010, 12 (11):867-869］