Peds GI Surgery - Opheim Flashcards

1
Q

What are the steps in the evaluation of a pediatric patient with a GI complaint?

A
  • History
    • OPQRSTa
    • Birth history, Feeding pattern, Activities
  • Physical exam
    • Face flushed, diaphoretic
    • Interaction with others
    • Position, wiggling around, curled up
    • Head to Toe exam
    • Abdominal exam
      • bump table, use stethoscope
      • Percuss, palpation
      • Can patient sit up, take deep breath, cough, twist torso, etc. comfortably
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2
Q

Define “acute abdomen”.

A

“Signs and symptoms of abdominal pain and tenderness, a clinical presentation that often requires emergency surgical therapy.”

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3
Q

What conditions are associated with an “acute abdomen”?

A
  • Causes
    • Infection
    • Obstruction
    • Ischemia
    • Perforation
  • “often” requires surgery… not “always”
    • Endocrine, metabolic, hematologic, toxins/drugs
    • DKA, porphyria, lead poisoning, hypercalcemia, Addison’s disease, constipation
  • Malrotation (after IV hydration)
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4
Q

What laboratory studies should be performed in the evaluation of abdominal problems?

A
  • Complete blood count with differential
    • WBC, hemoglobin, platelet
    • Neutrophil %
  • Basic metabolic profile
  • CRP
  • Sed rate
  • Urinalysis
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5
Q

What are the symptoms of Pyloric Stenosis?

A
  • Projectile, non-bilious vomiting
    • May have recent history of “formula intolerances”
    • curdled milk/formula, could have rust tint if delayed presentation
  • Baby acts hungry
  • Eventually will become dehydrated
    • No tears when baby cries
    • Infrequent wet diapers
    • Lethargy
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6
Q

What is the diagnostic test of choice for Pyloric Stenosis?

A

Ultrasound

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7
Q

What is the most important part of treating pyloric stenosis?

A

Fluid resuscitation first

(surgery later)

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8
Q

What is the clinical triad of symptoms in Intussusception?

A
  • Colicky abdominal pain
  • Bilious emesis
  • “Currant jelly” stools
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9
Q

How does intussusception lead to ischemia and necrosis?

A
  1. Lymphatic obstruction
  2. Venous congestion
  3. Impaired arterial blood flow
  4. ISCHEMIA AND NECROSIS!
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10
Q

What abdominal condition shows a “target sign” finding on ultrasound and/or CT scan?

A

Intussusception

(colon with small bowel inside of it)

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11
Q

What is the most common cause of acute surgical abdomen in children?

A

Acute appendicitis

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12
Q

What are the three etiologies of acute appendicitis?

A
  • Lymphoid hyperplasia
  • Fecolith
  • Foreign body
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13
Q

What is the basic pathophysiology of appendicitis?

A
  • Obstruction of appendix traps bacteria within
  • Bacteria multiply, appendix distends
  • Distention impairs venous outflow
  • Arterial inflow then becomes impaired
  • Ischemia, gangrene, necrosis, perforation
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14
Q

What exam findings can guide and/or determine the position of appendix?

A
  • –Pain at McBurney’s point - RLQ
  • –Psoas sign– retrocecal appendix
  • –Obturator sign– pelvic location of appendix
  • –Rovsing sign – pain in contralateral abdomen after palpation
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15
Q

What is Meckel’s Diverticulum?

A
  • Small bowel diverticulum— TRUE diverticulum
    • All layers of bowel wall
    • Embryology: persistent vitelline (omphalomesenteric) duct
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16
Q

What are the Rules of 2’s in Meckel’s Diverticulum?

A
  • 2% of population
  • Within 2 feet of ileocecal valve
  • 2 types of heterotopic tissue: gastric (50%) and pancreatic
  • 2 inches in length
  • 2 year old
17
Q

How does Meckel’s Diverticulum present?

A
  • Painless lower GI bleed
  • Obstruction
  • Meckel’s Diverticulitis
18
Q

Why is rectal bleeding common in Meckel’s Diverticulum?

A
  • Painless lower GI bleed (20-30% of complications)
    • Due to the gastric tissue contained in the diverticulum
    • Bleeding occurs on wall opposite of the Meckel’s
    • Meckel’s scan
    • –Technetium-99m pertechnetate scintigraphy
19
Q

What is Hirschsprung’s Disease?

A
  • Absence of Ganglion cells in the myenteric and submucosal plexus
  • Aganglionosis always involves distal rectum
  • Higher risk in patient’s with family hx and in Down syndrome patients.
20
Q

How does a patient with Hirschsprung’s Disease present?

A
  • Abdominal distention
  • Bilious emesis
  • Failure to pass meconium in the first 24 HRs
21
Q

What is the gold standard test to diagnose Hirschsprung Disease?

A

Full thickness rectal biopsy