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目的：探讨新生儿脐静脉置管(UVC)留置时间与导管位置及并发症关系。方法回顾性分析本院新生儿重症监护病房(NICU)接受UVC新生儿的临床资料,按UVC留置时间分为≥10 d组和<10 d组。对两组的置管位置、置管后并发症进行比较分析。结果共纳入52例患儿,其中男33例,女19例；胎龄26~37 w；出生体重700~2000 g。置管时间≥10 d组22例,<10 d组30例。两组一般情况比较差异无统计学意义。≥10 d组留置时间中位数为11.5 d,<10 d组为4.5 d,两者差异有统计学意义(<0.05)；≥10 d组因回血不畅或腹胀等并发症拔管者为4例,<10 d组均因回血不畅或腹胀等并发症拔管；两组导管管端位置中位数分别为T7.5(6.25~9.0)、T10(8.75~11.0)(T为胸椎),两者比较差异有统计学意义；≥10 d组腹胀、喂养不耐受、导管相关血流感染、NEC发生率均较<10 d组低,其中腹胀、喂养不耐受比较差异有统计学意义(<0.05)。结论 UVC管端位置为膈肌上1~2 cm为宜,位置得当,留置时间长,并发症少,如导管位置不当,应注意观察腹部情况,及时拔管,减少并发症,避免病情加重进展。“,”Objective To investigate the neonatal umbilical vein catheter (UVC)indwelling time and of the location of the catheter and complications. Methods A retrospective analysis of neonatal intensive care unit (NICU) accept UVC neonatal clinical data,according to the UVC lien time is divided into greater than or equal to 10 days and less than 10 days group.Of two groups,the site of insertion catheter complications after comparative analysis. Results Were included in the 52 cases,in which the male 33 cases,female 19 cases;Gestational age 26 ~ 37 weeks;The birth weight of 700 ~ 2000 g.Catheter time 10 days or more group of 22 cases,<10 days group 30 cases.The general situation is similar between the two groups has no statistical significance. Ten days or more group of indwelling time a median of 11.5 days,<4.5 days for 10 days,the difference was statistically significant ( <0.05);P group 10 days because of h. not free or complications such as abdominal distension extubation in 4 cases,<10days group are due to h.not free or complications such as abdominal distension extubation;Two groups of the median catheter tube position respectively T7.5 (6.25~9.0),T10 (8.75 ~11.0) (T for thoracic),both comparative difference was statistically significant;Ten days or more group of abdominal distension,feeding intolerance,the incidence of catheter related blood stream infections,NEC is<10 days set low,including abdominal distension,feeding intolerance comparative difference was statistically significant( <0.05).Conclusion UVC pipe position for 1~2 cm on the diaphragm advisable,position properly,the indwelling time,fewer complications,such as inappropriate position of catheter,should pay attention to observe the abdomen,tube drawing in time,reduce the complications, avoid aggravation of progress.