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Pediatric Growth Hormone Deficiency

Isolated or combined pituitary GH deficiency causing short stature and metabolic effects

Written by: Saygı Hospital Health Guide Editorial Board
Published:

This content is for general information; please consult your physician for diagnosis and treatment.

References (5)

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What is Pediatric Growth Hormone Deficiency?

GH deficiency — isolated GHD or combined pituitary hormone deficiency (CPHD) with ACTH, TSH, gonadotropin, ADH; congenital (genetic mutations in GH1, GHRHR, POU1F1, PROP1, HESX1, septo-optic dysplasia) or acquired (tumors, cranial radiation, trauma, infection, infiltrative disease).

Diagnostic approach — height <-2 SDS or falling across percentiles with decreased growth velocity (<-1 SDS), bone age delay, low IGF-1 and IGFBP-3 for age, confirmed by two provocative GH tests (clonidine, insulin tolerance, arginine, glucagon); priming with sex steroids for peripubertal boys.

Imaging and genetics — pituitary MRI to identify hypoplasia, stalk interruption, ectopic posterior pituitary, septo-optic dysplasia, tumors; genetic testing in suspected syndromic or familial cases.

Comorbidities — hypoglycemia in infancy with ACTH/GH deficiency, micropenis, adrenal crisis risk, central hypothyroidism, hypogonadism at puberty; need coordinated hormone replacement.

Symptoms

Height below 3rd percentile or falling from prior growth curve
Growth velocity below the 25th percentile for age
Delayed bone age (usually 2+ years behind chronological)
Doll-like facies, prominent forehead, high-pitched voice
Central adiposity and decreased muscle mass
Neonatal hypoglycemia, micropenis, cryptorchidism in severe congenital forms

Risk Factors

Perinatal insults — breech birth, prolonged labor, hypoxia
Cranial radiation for brain tumor or leukemia (most common acquired cause)
Traumatic brain injury, CNS infection, or infiltrative disease
Brain tumors — craniopharyngioma, germinoma, glioma of optic pathway
Midline facial defects — cleft lip/palate, single central incisor, septo-optic dysplasia
Familial short stature with affected relatives (genetic GHD)

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • A child growing below 3rd percentile, crossing percentiles downward, or with growth velocity under 4-5 cm/year after age 4 warrants pediatric endocrinology referral and auxology review.
  • A newborn with hypoglycemia, micropenis, or midline defects requires urgent endocrine evaluation for combined pituitary hormone deficiency.
  • Any child post-cranial radiation or brain tumor surgery needs surveillance growth and endocrine evaluation annually for several years.

Treatment Methods

01
Confirm diagnosis — complete auxology including parental heights, Neyzi-Günöz Turkish growth charts, bone age, IGF-1/IGFBP-3, free T4/TSH, cortisol, celiac screen, karyotype in girls; provocative GH testing after ruling out other causes.
02
Recombinant human GH (rhGH) — daily subcutaneous injection starting 0.025-0.035 mg/kg/day (0.17-0.24 mg/kg/week) in young children, titrated to growth velocity and IGF-1 target 0 to +2 SDS; higher doses at puberty.
03
Combined hormone replacement — hydrocortisone for ACTH deficiency first, then levothyroxine, sex steroids at puberty for hypogonadotropic hypogonadism, desmopressin for central DI; coordinated dosing.
04
Monitoring — height and growth velocity every 3-6 months, annual IGF-1, bone age every 1-2 years, thyroid function (can unmask central hypothyroidism), fasting glucose/lipids; IGF-1 kept below +2 SDS for safety.
05
Duration and outcomes — treatment continued until final height achieved (growth velocity <2 cm/year and bone age >14 female, >16 male); transition to adult care with retesting for adult GHD continuation.
06
Safety monitoring — scoliosis exam, slipped capital femoral epiphysis awareness, intracranial hypertension screening, glucose tolerance in obesity; tumor-related GHD requires stable imaging before GH start.

Which Department to Visit?

You can visit our Çocuk Sağlığı ve Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.