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Subclinical hypothyroidism in children

M Shriraam1, M Sridhar

  • 1Department of Pediatrics, Apollo Childrens Hospital, Chennai. Correspondence to: Dr M Sridhar, Consultant Pediatrician, Apollo childrens Hospital, No. 15, Shafee Mohammed Road, Thousand Lights, Chennai 600 006, India. hemasridha@yahoo.co.uk.

Indian Pediatrics
|November 30, 2014
PubMed

Insights

Subclinical hypothyroidism in children often requires only monitoring, not thyroid replacement therapy, especially when thyroid-stimulating hormone is below 10 mIU/L. Key risk factors for progression include female sex and positive thyroid antibodies.

Area of Science:

  • Pediatric endocrinology
  • Thyroid disorders
  • Internal medicine

Background:

  • Subclinical hypothyroidism (SCH) is defined by elevated thyroid-stimulating hormone (TSH) with normal free T4, lacking overt symptoms.
  • Management strategies for pediatric SCH remain debated due to limited evidence.

Purpose of the Study:

  • To review current evidence on pediatric subclinical hypothyroidism.
  • To establish a consensus and management algorithm for this condition.

Main Methods:

  • A systematic literature search was conducted across PubMed, Cochrane, and Embase databases.
  • Included studies published between 1990 and 2014 focusing on pediatric subclinical hypothyroidism.
  • 13 relevant articles were selected for the review.

Main Results:

  • Pediatric subclinical hypothyroidism is frequently benign, often requiring only expectant management and monitoring.
  • Progression to overt hypothyroidism occurs less often than anticipated.
  • Thyroid replacement therapy is not indicated for TSH levels <10 mIU/L in children with SCH.

Conclusions:

  • Risk factors for progression to overt hypothyroidism include female sex, goiter, family history, positive thyroid peroxidase antibodies, and hypothyroid symptoms.
  • A suggested management algorithm emphasizes monitoring over immediate treatment.
  • Further robust randomized controlled trials focusing on clinical outcomes are needed.
Abstract

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