| Objective: To investigate the occurrence and related risk factors of extrauterine growth retardation(EUGR)in premature infants under 34 weeks of gestational age,so as to formulate corresponding treatment strategies and reduce the incidence of EUGR.Methods: A case-control study was conducted to analyze 693 premature infants whose gestational age was less than 34 weeks and discharged normally from May 2015 to April2018 in the Neonatal intensive Care Unit of the first affiliated Hospital of Xinjiang Medical University.According to whether extrauterine stunting occurred at the time of discharge,it was divided into two groups: extrauterine stunting group(n ≤ 255)and no extrauterine growth retardation group(n ≤ 436).The medical history characteristics of the two groups were compared with the relevant data,and the related high risk factors were analyzed by univariate analysis,and the meaningful factors in univariate analysis were included in logistic binary regression analysis.To determine the independent risk factors of extrauterine stunting in premature infants under 34 weeks in our hospital.Results: According to body weight,body length and head circumference,there were255 cases of EUGR in 691 premature infants,the incidence rate was 36.9%,and 436 cases of EUGR did not occur.According to body weight,body length and head circumference,the incidence of EUGR at discharge was 28.8%(199 cases),30.0%(20.7%)and 25.2%,respectively.%(174 cases).Univariate analysis showed that pregnant women with hypertension during pregnancy were asphyxiated at birth with(PIH),gestational age(GA),birth weight(BW),intrauterine growth retardation(IUGR),fasting water,total intestinal feeding days,antibiotic use days.Caffeine,hospitalization days,average daily calorie intake,average daily protein intake,invasive ventilator,total oxygen inhalation days,hospital infection with(NI),using peripheral central vein catheterization(PICC),There was significant difference in these 16 high risk factors between the two groups(P < 0.05),but the antenatal use of hormones and hormones were significantly different between the two groups(P>0.05).There was no significant difference in GDM,sex,between the two groups.In logistic binary regression analysis,IUGR,GA,BW and hospitalization days were independent risk factors for EUGR in premature infants less than 34 weeks after discharge.Conclusion: We should do a good job of health education before pregnancy,change bad living habits,strengthen physical conditioning,carry out scientific nutritional guidance and nutritional supplement during pregnancy,and regularly carry out antenatal examination to reduce the occurrence of premature delivery,low birth weight and intrauterine growth retardation.Reducing hospitalization time as much as possible can reduce the incidence of EUGR in premature infants.Meaning. |