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Effects of Thyroid Hormones on Risk of Intraventricular Hemorrhage in Preterm Infants

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Abstract

Intraventricular hemorrhage (IVH) often occurs in preterm infants and is an important cause of brain damage in the infants. Although its incidence has decreased, IVH remains a significant complication in the survival of preterm infants. One of the predisposing factors is thyroid function. The aim of the present study was to evaluate the effects of thyroid hormones T4 and thyroid-stimulating hormone (TSH) on risk of IVH in Iranian preterm infants. We designed a cross-sectional study, and the population includes fifty preterm infants admitted in the neonatal intensive care unit (NICU) ward of Ali Asghar Hospital, Tehran, Iran, during the period of 2017 to 2018. Cranial sonography at the 5th and 30th day after birth was performed to evaluate the IVH and thyroid function tests were conducted on blood samples using radioimmunoassay. Results of IVH prevalence and grading indicated that 5th day IVH occurs in 38% and 30th day IVH occurs in 28% of infants. There is no statistically significant correlation between T4 and TSH with 5th day IVH but there is a significant statistical relationship between T4 and TSH levels and IVH on the 30th day after birth. Thyroid function hormones could be used as markers to predict the risk of IVH in preterm infants. Larger sample size can help to obtain more validated results.

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Acknowledgments

The authors would like to thank the Vice Chancellor in charge of the research, Iran University of Medical Sciences and Health Services, all the patients who participated in this study, and our colleagues at the NICU ward of Ali Asghar Hospital.

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Authors and Affiliations

  1. Ali Asghar Hospital, Iran University of Medical Sciences, Tehran, Iran

    Nastaran Khosravi, Farhad Abolhasan Chobdar, Nasrin Khalesi & Zahra Vahedi

  2. Akbarabadi Hospital, Iran University of Medical Sciences, Tehran, Iran

    Ali Mazouri

  3. Department of Mechanical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan

    Alireza Karimi

Authors
  1. Nastaran Khosravi
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  2. Farhad Abolhasan Chobdar
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  3. Ali Mazouri
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  4. Nasrin Khalesi
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  5. Zahra Vahedi
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  6. Alireza Karimi
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Corresponding author

Correspondence to Zahra Vahedi.

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Ethics Approval and Consent to Participate

All parents of infants provided written informed consents and the project was approved by the Local Committee on Health Research Ethics (Iran University of Medical Sciences and Health Services).

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The authors declare that they have no competing interests.

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Khosravi, N., Chobdar, F.A., Mazouri, A. et al. Effects of Thyroid Hormones on Risk of Intraventricular Hemorrhage in Preterm Infants. SN Compr. Clin. Med. 2, 158–163 (2020). https://doi.org/10.1007/s42399-019-00200-3

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