Pediatric Endocrine Disorders: Clinical Management

Classified in Medicine & Health

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Hypothyroidism

Causes
  • Prenatal exposure to radioiodine
  • Maternal use of anti-thyroid medication
Symptoms
  • Asymptomatic
  • Prolonged jaundice
  • Wide fontanelle
  • Macroglossia
  • Umbilical hernia
  • Hypotonia
  • Abdominal distension
Diagnosis
  • Risk of mental retardation/cretinism
  • High TSH
  • Low Free T4
  • Screening: 2nd-4th day of life
TreatmentLevothyroxine

Hyperthyroidism

Causes
  • Maternal Graves disease
  • Transplacental IgG passage
Symptoms
  • Weight loss
  • Sweating
  • Heat intolerance
  • Agitation
  • Goiter
Diagnosis
  • TSH receptor autoantibodies
  • TSH and Free T4 levels
  • Ultrasound, Scintigraphy
Treatment
  • Antithyroid medication (e.g., thiamazole)
  • Beta-blockers
  • Diazepam
  • Thyroidectomy

Adrenal Insufficiency

Causes
  • Congenital adrenal hyperplasia
  • Meningococcal septicemia
  • Adrenal hemorrhage
  • Cessation of glucocorticoid therapy
  • Adrenoleukodystrophy (ALD gene mutation, Xq28)
Clinical Features
  • Cerebral sclerosis
  • Decreased visual acuity/blindness
  • Cognitive decline
  • Ataxia, Nausea/Vomiting
  • Drowsiness, fainting
  • Shock, hypotension, tachycardia, dehydration
Diagnosis
  • Blood glucose (hypoglycemia)
  • Electrolytes (hyponatremia)
  • Acidosis
  • Cortisol, Adrenal steroids, ACTH
Treatment
  • IV fluids (0.9% NaCl, then glucose solutions)
  • Correct Na & K
  • Hydrocortisone infusion

Diabetic Ketoacidosis (DKA)

Complications
  • Inadequate rehydration
  • Hypoglycemia
  • Hypokalemia
  • Hyperchloremic acidosis
  • Cerebral edema
Treatment
  • Rehydration: 0.9% saline
  • IV Insulin: 0.05-0.1 unit/kg/hour
  • Potassium replacement
  • Bicarbonate only if pH < 6.9

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