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Effect of levothyroxine sodium on preterm infants with hypothyroidism


Haimei Jiao
Peng Yu
Jia Feng
Bingjin Zhang
Jingjing Li
Xuexiang Li

Abstract

Purpose: To investigate the effect of levothyroxine sodium on preterm infants with hypothyroidism.


Methods: The study involved a total of 96 preterm infants with hypothyroidism who were admitted to the Shengli Oilfield Central  Hospital, Dongying, from January 2020 to October 2021. These patients were divided randomly into a study group and control group with  48 patients in each group. The control group was given routine treatment, while study group received levothyroxine sodium tablets  orally. Growth and development (height, and weight), mental development index (MDI score), psychomotor development index (PDI  score), and thyroxine levels (thyroid-stimulating hormone (TSH), free triiodothyronine (FT3), and free thyroxine (FT4)) between both  groups were recorded.


Results: After treatment, thyroxine indices in both groups were significantly improved, but the indices in study  group were better than in control group (p < 0.05). Growth, mental and psychomotor development indices in the improved groups were  improved, but the improvements in the study group were significantly better than in control group (p < 0.05). The overall response rate  (ORR) in the study group (93.75 %) was significantly higher than in the control group (77.08 %; p < 0.05).


Conclusion: Levothyroxine  sodium improves growth, mental and psychomotor development, and thyroxine level in preterm infants with hypothyroidism. This  protocol will benefit from further large-scale investigation prior to application in clinical practice.   


Journal Identifiers


eISSN: 1596-9827
print ISSN: 1596-5996