Efficacy of therapeutic hypothermia on mild neonatal hypoxic-ischemic encephalopathy: a prospective randomized controlled study

HUANG Jie, DING Ya-Ling, GAO Liang, ZHU Yao, LIN Ya-Yin, LIN Xin-Zhu

Chinese Journal of Contemporary Pediatrics ›› 2024, Vol. 26 ›› Issue (8) : 803-810.

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Chinese Journal of Contemporary Pediatrics ›› 2024, Vol. 26 ›› Issue (8) : 803-810. DOI: 10.7499/j.issn.1008-8830.2401031
CLINICAL RESEARCH

Efficacy of therapeutic hypothermia on mild neonatal hypoxic-ischemic encephalopathy: a prospective randomized controlled study

  • HUANG Jie, DING Ya-Ling, GAO Liang, ZHU Yao, LIN Ya-Yin, LIN Xin-Zhu
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Abstract

Objective To investigate the efficacy of therapeutic hypothermia on mild neonatal hypoxic-ischemic encephalopathy (HIE). Methods A prospective study was performed on 153 neonates with mild HIE who were born from September 2019 to September 2023. These neonates were randomly divided into two groups: therapeutic hypothermia (n=77) and non-therapeutic hypothermia group (n=76). The short-term clinical efficacy of the two groups were compared. Barkovich scoring system was used to analyze the severity of brain injury shown on magnetic resonance imaging (MRI) between the two groups. Results There were no significant differences in gestational age, gender, birth weight, mode of birth, and Apgar score between the therapeutic hypothermia and non-therapeutic hypothermia groups (P>0.05). There were no significant differences in the incidence rates of sepsis, arrhythmia, persistent pulmonary hypertension and pulmonary hemorrhage and the duration of mechanical ventilation within the first 72 hours after birth between the two groups. The therapeutic hypothermia group had longer prothrombin time within the first 72 hours after birth and a longer hospital stay (P<0.05). Compared with the non-therapeutic hypothermia group, the therapeutic hypothermia group had lower incidence rates of MRI abnormalities (30% vs 57%), moderate to severe brain injury on MRI (5% vs 28%), and watershed injury (27% vs 51%) (P<0.05), as well as lower medium watershed injury score (0 vs 1) (P<0.05). Conclusions Therapeutic hypothermia can reduce the incidence rates of MRI abnormalities and watershed injury, without obvious adverse effects, in neonates with mild HIE, suggesting that therapeutic hypothermia may be beneficial in neuroprotection in these neonates.

Key words

Hypoxic-ischemic encephalopathy / Therapeutic hypothermia / Brain magnetic resonance imaging / Brain injury / Neonate

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HUANG Jie, DING Ya-Ling, GAO Liang, ZHU Yao, LIN Ya-Yin, LIN Xin-Zhu. Efficacy of therapeutic hypothermia on mild neonatal hypoxic-ischemic encephalopathy: a prospective randomized controlled study[J]. Chinese Journal of Contemporary Pediatrics. 2024, 26(8): 803-810 https://doi.org/10.7499/j.issn.1008-8830.2401031

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