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Surgical Problems in Children

Surgical Problems in Children. Ricardo A. Caicedo, MD Pediatric Gastroenterology University of Florida. GASTROINTESTINAL Pyloric stenosis Malrotation Midgut volvulus Duodenal atresia Meconium ileus Intussusception Meckel’s diverticulum Hirschsprung’s disease. GENITOURINARY

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Surgical Problems in Children

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  1. Surgical Problems in Children Ricardo A. Caicedo, MD Pediatric Gastroenterology University of Florida

  2. GASTROINTESTINAL Pyloric stenosis Malrotation Midgut volvulus Duodenal atresia Meconium ileus Intussusception Meckel’s diverticulum Hirschsprung’s disease GENITOURINARY Hypospadias Phimosis/paraphimosis Cryptorchidism Hydrocele Testicular torsion Problems • OBJECTIVES • Recognize • Diagnose • Consult surgery

  3. Pyloric stenosis • Hypertrophy of the gastric outlet • 1:150 males, 1:750 females • 2-12 weeks of age • Repetitive vomiting • Projectile • Non-bilious • Dehydration • Hypochloremic alkalosis • Exam • Visible peristaltic wave • Palpable “olive” to right of umbilicus

  4. Pyloric stenosis UGI Ultrasound Delayed passage of barium through thickened pyloric channel Thickened, elongated pyloric channel

  5. Pyloric stenosis Surgical tx = pyloromyotomy Hypertrophy of pylorus Endoscopic balloon dilation

  6. Malrotation Duodenum to right of spine • Failure of midgut to rotate into normal anatomic position during development • Colon and cecum in left • Duodenum on right side • Bilious vomiting • Peritoneal (Ladd) bands cause partial bowel obstruction • High risk for... Cecum in left abdomen

  7. Midgut volvulus ! SURGICAL EMERGENCY • Twisting of bowel around its mesentery and vascular supply • Leads to ischemia, infarction, perforation, necrosis • Presentation: lethargy, abdominal distention, bloody stools

  8. Duodenal atresia • Obliteration of lumen • Failure to recanalize • Neonatal bilious vomiting • Associations • Prematurity • Congenital heart defects • Trisomy 21 Double bubble sign ! Complete small bowel obstruction SURGICAL EMERGENCY

  9. Meconium ileus • CYSTIC FIBROSIS • First manifestation in 15% of CF cases • Thick meconium impacts in ileum • Abdominal distention • Bilious vomiting • Risk for • Volvulus • Perforation Microcolon with meconium plugs ! SURGICAL EMERGENCY

  10. Intussusception • Telescoping of one segment of bowel into another • Ileocolonic most common • 6 mos – 3 years old • Progressive course • Intermittent acute abd. pain • Vomiting • Bloody stools (currant jelly) • Fever, lethargy • Palpable sausage-shaped mass in upper abdomen

  11. IntussusceptionManagement • Abdominal X-ray: obstruction • Contrast enema • Diagnostic confirmation • Therapeutic in 75% of cases • Hydrostatic pressure reduces the intussusception • Surgeon must be involved directly • If enema reduction fails • Small bowel intussusceptions require surgical reduction

  12. Intussusception Terminal ileum telescoped into cecum

  13. Meckel’s diverticulum • Remnant of omphalomesenteric duct • Painless rectal bleeding • Less commonly: intuss., volvulus, perforation • Diagnosis • CT scan • Nuclear medicine scan • Endoscopy • Treatment • Surgical resection

  14. Hirschsprung’s disease • Congenital absence of ganglion cells in distal rectum - and varying distance proximally • Lack of peristalsis causes colonic obstruction • Abdominal distention • Failure to pass meconium • Fever and diarrhea suggest “toxic megacolon” ! SURGICAL EMERGENCY

  15. Hirschsprung’s AXR: obstructive pattern Suction rectal bx Absence ofganglion cells in myenteric plexus Barium enema: Dilated proximal colon with transition zone

  16. Surgical treatment • Colostomy • Pull-through and removal of • aganglionic segment Hirschsprung’s

  17. Inguinal hernia • Most common surgical problem • More common in male and premature infants • Intestinal segment entering into scrotum through processus vaginalis • Does not resolve spontaneously • Painless scrotal bulge • Increases in size with crying/straining • Management • Reducible: refer to surgery for repair • Incarcerated: immediate surgical consult

  18. Umbilical hernia • Incomplete closure of umbilical ring fascia • More common in premature and African-American infants • Usually close by 2-4 yrs • Refer to surgery if: • Larger than 1.5 cm at 2 yrs • Present after 4 yrs • Supraumbilical

  19. Hypospadias • Abnormal low position of urethral meatus • Absence of ventral foreskin • Associations • Undescended testes • Urinary tract anomalies • Management • Avoid circumcision • Refer to pediatric urology

  20. Phimosis vs. Paraphimosis Phimosis: inability to retract foreskin Tx: dorsal slit or circumcision Paraphimosis: foreskin retracted behind coronal groove; tourniquet to glans Tx: circumcision

  21. Cryptorchidism • Undescended testicle(s) • Spontaneous descent does not occur beyond age 1 yr • Bilateral in 1/3 of cases • Associations • Inguinal hernia • Hypospadias • Higher incidence of • Testicular torsion • Infertility • Cancer in cryptorchid testis

  22. Cryptorchidism • Endocrine eval. • Refer early: 6-12 mos of age • hCG stimulation test • “Locates” functional testes • Can aid in descent • Karyotype if hypospadias co-exists • Surgery • Orchidopexy • Usually in 2nd yr of life

  23. PAINLESS Hydrocele Varicocele Spermatocele Inguinal hernia PAINFUL Testicular torsion Epididymitis Orchitis Incarcerated hernia Scrotal swelling

  24. Hydrocele • Mobile • Transilluminates • Spontaneous resolution

  25. ! Testicular torsion SURGICAL EMERGENCY • Twisting of testis around spermatic cord • Caused by abnormal fixation of testis to scrotum • Vascular supply compromised • Acute painful scrotal swelling • Severe tenderness • Redness or dusky color • Testis elevated • Cremasteric reflex absent

  26. Torsion 6 hour window for surgical detorsion R. testis: blood flow (Doppler) L. testis: lack of blood flow The consequence of delayed diagnosis Ultrasound

  27. NUTRITION GROWTH DEVELOPMENT CHILD HEALTH

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