Pediatric Disorders Overview for Medical Students

Mar 15, 2025

Pediatric Shelf Review Lecture Notes

Introduction

  • Presenter: Devine, 4th-year medical student
  • Focus on pediatric disorders and high-yield exam topics

Sleep Disorders in Children

  • Sleep Terror Disorder
    • Agitation and tears at night, no memory next morning
    • Occurs in N3 stage of sleep, reassurance as treatment
    • Differentiate from nightmare disorder (occurs during REM, remembered)

Immunodeficiency Disorders

  • Bruton's Agammaglobulinemia
    • X-linked, affects boys, recurrent bacterial infections
    • Decreased B cells and immunoglobulins
    • Treatment with IVIG
  • DiGeorge Syndrome
    • T-cell deficiency, viral/fungal infections
    • Hypocalcemia, cardiac anomalies (truncus arteriosus)
  • Other Syndromes
    • SCID, CGD, Ataxia Telangiectasia, Wiskott-Aldrich

Pediatric Tumors

  • Wilms Tumor
    • Unilateral renal mass, hypertension
    • WT1 mutation, chromosome 11
  • Neuroblastoma
    • Crosses midline, calcified, catecholamine production

Growth and Development

  • Fetal Alcohol Syndrome
    • Microcephaly, smooth philtrum, ADHD
  • Down Syndrome Associations
    • Hirschsprung's disease, duodenal atresia, cardiac defects

Common Pediatric Conditions

  • Kawasaki Disease
    • Conjunctivitis, rash, cervical lymphadenopathy
    • Treat with IVIG and aspirin
  • Henoch-Schönlein Purpura (HSP)
    • Palpable purpura, abdominal pain, intussusception risk

Infectious Diseases

  • Lyme Disease
    • Amoxicillin for children under 8
  • RSV and Croup
    • RSV: wheeze and supportive care
    • Croup: barking cough, treat with racemic epinephrine

Immunizations and Reactions

  • Vaccines
    • Avoid live vaccines in immunocompromised and infants <1 year
    • Pneumococcal, meningococcal, and H. influenza for asplenic patients

Hematologic and Renal Disorders

  • Osteomyelitis
    • Varies by age and condition (e.g., Staph aureus, Salmonella in sickle cell)
  • Nephrotic and Nephritic Syndromes
    • Minimal change disease, post-streptococcal glomerulonephritis

Gastrointestinal and Endocrine Disorders

  • Pyloric Stenosis
    • Non-bilious vomiting, hypochloremic metabolic alkalosis
  • Cystic Fibrosis
    • Respiratory infections (Staph aureus <20 years, Pseudomonas >20 years)
    • Pancreatic insufficiency, sweat chloride test

Neurological and Skeletal Disorders

  • Infantile Spasms and Tuberous Sclerosis
    • Treat spasms with ACTH or vigabatrin
  • Osgood-Schlatter Disease
    • Pain over tibial tubercle, common in active children

Congenital Heart Defects

  • Tetralogy of Fallot
    • Pulmonary stenosis, VSD, overriding aorta, right ventricular hypertrophy
  • Transposition of the Great Arteries
    • Cyanosis, egg on a string appearance on X-ray

Genetic and Metabolic Disorders

  • Glycogen Storage Diseases
    • Von Gierke's, Pompe, McArdle's
  • Other Genetic Disorders
    • Turner syndrome, Klinefelter syndrome, Fragile X

Conclusion

  • Comprehensive overview, covering a range of pediatric topics
  • Emphasis on high-yield concepts for exam preparation

This summary captures the key topics discussed in the lecture, providing a structured overview that can be used for review before the Pediatric Shelf Exam.