Association Between NT-proBNP and Prolonged Length of Stay in Hospital Among Preterm Infants Born at 28–31 Weeks' Gestation

Frontiers in Pediatrics

Mengyuan Lei²  Min Zhao²  Qianya Xu²  Mengmeng Wang²  Suge Han²  Junbo Wang²  Min Song²  Chenghan Luo²  Haoqi Qin²  Jian Ge²  Yanting Zhao²  Wenqian Ding²  Li Wang²  Wenjun Cao²  Zanyang Shi³  Xinru Cheng³  Fengxia Mao³  Qian Zhang³ 

[1] Henan High Risk Newborn Clinical Treatment and Follow-Up Center, Zhengzhou, China;The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China;Zhengzhou Key Laboratory for Prevention and Control of Developmental Disorders, Zhengzhou, China;

关键词: N-terminal pro-brain natriuretic peptide;    preterm infants;    length of stay;    cardiac function;    duration of hospitalization;   

DOI  :  10.3389/fped.2021.783900

来源: DOAJ

【 摘 要 】

ObjectiveIn the early life of preterm infants, the relationship between heart function and length of hospitalization is unclear. This study aims to examine the association between serum NT-proBNP level on the 7th day (NT-proBNP7) after birth and length of hospitalization among preterm infants.MethodsA retrospective cohort study was conducted. Patients included 709 preterm infants born at 28–31 weeks' gestational age (GA) admitted to the NICU of the First Affiliated Hospital of Zhengzhou University between December 20, 2016, to April 31, 2021. Main outcome: Late discharge (postmenstrual age at discharge was in the fourth quartile (highest) among infants born at the same GA). Exposure factor: NT-proBNP7.ResultsWe observed increased prevalence ratios for late discharge among the tertile of logarithm of NT-proBNP7 level (LnNT-proBNP7) which was positive. Compared with the lowest tertile, infants in the highest tertile of LnNT-proBNP7 had an 8.4-fold increased probability of late discharge, and the results were consistent for the subgroups. Next, a non-linear (S-shaped) relationship between LnNT-proBNP7 and late discharge was observed, whose turning points were 7.5 and 9. The effect sizes and the confidence intervals on the left of the first turning point, between two turning points and on the right of the second turning point, were 0.6 (95% CI, 0.2–1.6), 5.0 (95% CI, 2.4–10.6), and 1.1 (95% CI, 0.2–6.1), respectively. In addition, the prevalence of BPD, NEC, nosocomial infection, or any of them was highest in the group of LnNT-proBNP7 ≥ 9, lowest in the group of LnNT-proBNP7 < 7.5.ConclusionHigher NT-proBNP7 levels were associated with longer hospitalization. The relationship between LnNT-proBNP7 and late discharge was S-shaped. LnNT-proBNP7 was positively related with late discharge when LnNT-proBNP7 was between 7.5 and 9.

【 授权许可】

Unknown