Chinese Journal of Child Health Care ›› 2023, Vol. 31 ›› Issue (10): 1127-1131.DOI: 10.11852/zgetbjzz2022-1397

• Clinical Research • Previous Articles     Next Articles

Application of individualized vitamin D supplementation in very preterm infants

YOU Fang1, NI Baiting1, ZHAO Jing2, QIANG Guangfeng1, REN Xueyun1   

  1. 1. Department of Pediatrics, Affiliated Hospital of Jining Medical College, Jining, Shandong 272000, China;
    2. Maternal and Child Health and Family Planning Service Center of Sishui County
  • Received:2022-11-21 Revised:2023-02-15 Online:2023-10-10 Published:2023-10-23
  • Contact: REN Xueyun, E-mail:441024311@qq.com

个体化维生素D补充方案在极早产儿中的应用研究

游芳1, 倪佰亭1, 赵静2, 强光峰1, 任雪云1   

  1. 1.济宁医学院附属医院,山东 济宁 272000;
    2.泗水县妇幼保健计划生育服务中心
  • 通讯作者: 任雪云,E-mail:441024311@qq.com
  • 作者简介:游芳(1983-),女,山东人,副主任医师,硕士研究生,主要研究方向为新生儿疾病。
  • 基金资助:
    济宁市重点研发计划项目(2019SMNS009)

Abstract: Objective To investigate the efficacy of individualized vitamin D supplementation in very preterm infants, in order to provide reference for optimizing the vitamin D supplementation strategy for very preterm infants. Methods A total of 106 very preterm infants hospitalized in NICU from July 2021 to July 2022 were selected into this study, and were randomly divided into observation group (n=47) and control group (n=59). Infants in both groups took vitamin D supplementation from the 7th day after birth. In the observation group, infants received daily vitamin D supplementatation,and the dose was based on their serum 25-hydroxy vitamin D[25-(OH)D] level:800U was taken orally for the infants with sufficient vitamin D; for infants with vitamin D insufficiency, oral vitamin D supplementation was increased to 1 400U; for infants with vitamin D deficiency, oral vitamin D supplementation was increased to 1 800U; for infants with excessive vitamin D, oral vitamin D dose was reduced to 400U; for infants with vitamin D potential poisoning and poisoning, vitamin D supplementation would be discontinued. In the control group, infants were routinely supplemented with 800U vitamin D. Serum levels of 25-(OH)D, the incidence of vitamin D deficiency/insufficiency, and the occurrence of vitamin D overdose or poisoning were compared between the two groups within 48 hours, 4 weeks and 8 weeks after birth. Results The incidence of vitamin D deficiency and insufficiency in 106 very preterm infants within 48 hours after birth was 81.1% and 9.43%, respectively. There was no significant difference in serum 25-(OH)D level and incidence of vitamin D deficiency/insufficiency between the two groups within 48h after birth (P>0.05). The level of serum 25-(OH) D in the observation group was significantly higher than that in the control group at 4 and 8 weeks after birth (t=3.84, 5.94, P<0.05), and the incidence rate of vitamin D deficiency was significantly lower than that in the control group (χ2=11.02, 18.32, P<0.05). Conclusion Compared with the routine supplementation of 800U vitamin D, individualized vitamin D supplementation can significantly increase serum 25-(OH)D level at 4 and 8 weeks after birth and reduce the incidence of vitamin D deficiency in very preterm infants.

Key words: individualized, vitamin D supplementation, 25-hydroxyvitamin D, very preterm infants

摘要: 目的 探讨个体化维生素D补充方案在极早产儿中应用的有效性,为优化极早产儿维生素D补充方案提供临床依据。方法 选取2021年7月—2022年7月在济宁医学院附属医院NICU住院的极早产儿106例,随机分为观察组(n=47)和对照组(n=59),两组患儿均于生后第7天开始补充维生素D,观察组根据血清25-羟维生素D[25-(OH)D]水平决定每日维生素D的补充剂量:维生素D充足的患儿口服维生素D 800U;不足的患儿口服维生素D 增加至1 400U;缺乏的患儿口服维生素D增加至1 800U;过量的患儿口服维生素D减量至400U;维生素D潜在中毒及中毒的患儿停用维生素D。对照组常规补充维生素D 800U,比较两组患儿生后48h内、生后4周、生后8周血清25-(OH)D水平、维生素D缺乏/不足发生率及是否存在维生素D过量或中毒的发生。结果 106例极早产儿生后48h内维生素D缺乏的发生率为81.1%,维生素D不足的发生率为9.43%。两组患儿生后48h内血清25-(OH)D水平及维生素D 缺乏/不足发生率比较,差异无统计学意义(P>0.05)。生后4周、生后8周观察组血清25-(OH)D水平显著高于对照组(t=3.84、5.94,P<0.05),维生素D缺乏发生率明显低于对照组(χ2=11.02、18.32,P<0.05)。结论 与常规补充800U维生素D比较,个体化维生素D补充方案能显著提升极早产儿生后4周、生后8周血清25-(OH)D水平,降低维生素D缺乏发生率。

关键词: 个体化, 维生素D补充, 25-羟维生素D, 极早产儿

CLC Number: