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To identify the incidence of endocrine dysfunction in children following traumatic brain injury (TBI). STUDY
This was a prospective evaluation of 31 children after TBI. Inclusion criteria included Glasgow Coma Scale (GCS) score =12 and age 1.5-18 years. We evaluated thyroid function, insulin-like growth factor I, insulin-like growth factor-binding protein 3, and cortisol at 1, 3, 6, and 12 months after injury, and assessed prolactin at 3 and 6 months. At 6 months, we also assessed overnight spontaneous growth hormone (GH) secretion, nocturnal thyrotropin surge, adrenal reserve, and serum and urine osmolarity.
The average patient age was 11.6 years, and mean GCS score was 6. The incidence of endocrine dysfunction was 15% at 1 month, 75% at 6 months, and 29% at 12 months. At 12 months after injury, 14% had precocious puberty, 9% had hypothyroidism, and 5% had GH deficiency. Endocrine dysfunction at 1 year did not correlate with the severity of injury.
Endocrine dysfunction after TBI is common in children, but most cases resolve by 1 year. We recommend endocrine surveillance at both 6 and 12 months following moderate or severe TBI to ensure early intervention for persistent or late-occurring endocrine sequelae.
Division of Endocrinology , Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH.
This article was published in the following journal.
Name: The Journal of pediatrics
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