Pancreatic Disorders

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Acute Pancreatitis - Fiery Flare-Up

  • Sudden pancreatic inflammation. Key symptoms: severe epigastric pain (often radiating to back), nausea, vomiting.
  • 📌 Pediatric Causes: Trauma, Drugs (valproate, L-asparaginase, steroids), Viral (Mumps, Coxsackie B), Systemic (CF, Kawasaki, HUS, IBD), Biliary/Anatomic (choledochal cyst, pancreas divisum), Idiopathic/Inherited (PRSS1, SPINK1).
  • Diagnosis (≥2 of 3 criteria):
    • Characteristic acute onset, persistent, severe epigastric abdominal pain.
    • Serum lipase or amylase activity ≥3x ULN (Upper Limit of Normal).
    • Characteristic findings on abdominal imaging (USG, CECT, or MRI).
  • Investigations: Serum lipase (preferred), amylase. USG abdomen (initial). CECT if diagnosis uncertain or for complications (e.g., necrosis) after 48-72 hrs.
  • Management:
    • Supportive care: Nil Per Oral (NPO) initially, transitioning to early enteral nutrition if tolerated. Aggressive IV fluid resuscitation. Analgesia (opioids).
    • Monitor: Vital signs, urine output, electrolytes.
    • Treat underlying cause (e.g., ERCP for choledocholithiasis).
  • Complications: Pancreatic pseudocyst, necrosis, abscess; Systemic: SIRS, ARDS, renal failure.

⭐ Serum lipase is preferred over amylase for diagnosing acute pancreatitis in children due to its higher sensitivity and specificity, and longer half-life.

Pancreatitis: Normal vs. Inflamed Pancreas

Chronic Pancreatitis & EPI - Lasting Ache & Leak

  • Chronic Pancreatitis (CP): Irreversible pancreatic damage, fibrosis, and ductal stricturing.
    • Causes: Alcohol (adults), tropical pancreatitis (common in India, early onset, large duct stones), genetic (CFTR, SPINK1, PRSS1), autoimmune.

    ⭐ Cystic fibrosis is the leading genetic cause of chronic pancreatitis and exocrine pancreatic insufficiency in children.

    • Symptoms: Persistent/recurrent epigastric pain (radiates to back), malabsorption (steatorrhea, weight loss), diabetes mellitus.
    • Diagnosis: Imaging shows calcifications (X-ray, CT), ductal dilation/strictures (MRCP - "chain of lakes" appearance), pancreatic atrophy. Chronic Pancreatitis: CT with calcifications & dilated duct
  • Exocrine Pancreatic Insufficiency (EPI): Reduced pancreatic enzyme secretion leading to maldigestion.
    • Symptoms: Steatorrhea (bulky, foul-smelling, greasy stools), weight loss, fat-soluble vitamin (A, D, E, K) deficiencies.
    • Diagnosis: Fecal elastase-1 < 200 µg/g stool (severe EPI < 100 µg/g).
    • Management: Pancreatic Enzyme Replacement Therapy (PERT), vitamin supplementation.
    • 📌 Mnemonic (EPI symptoms): Steatorrhea, Abdominal pain/distension, Decreased weight/vitamin deficiency (SAD).

Congenital & Other Issues - Twisted Tubes, Rare Lumps

  • Annular Pancreas
    • Embryology: Ventral bud malrotation; encircles 2nd part of duodenum.
    • Sx: Neonatal duodenal obstruction, bilious/non-bilious vomiting.
    • Dx: X-ray ('double bubble' sign). Annular pancreas neonate X-ray double bubble sign
    • Tx: Surgical bypass (duodenoduodenostomy).
  • Pancreas Divisum
    • Most common; failed fusion of ventral/dorsal ducts.
    • Often asymptomatic; can cause recurrent pancreatitis.
    • Dx: MRCP, ERCP (gold standard). Tx: Symptomatic - endoscopic sphincterotomy.
  • Ectopic Pancreas
    • Pancreatic tissue in stomach, duodenum, Meckel's. Usually asymptomatic.
  • Rare Tumors
    • Pancreatoblastoma: Most common malignant tumor in childhood (< 10 yrs); ↑ AFP.
    • Solid Pseudopapillary Neoplasm (SPN): Adolescent females; low malignant potential.

⭐ Annular pancreas typically presents in neonates with duodenal obstruction, vomiting (often bilious), and a characteristic 'double bubble' sign on abdominal X-ray.

Diagnostic & Management Pearls - Pancreas Pointers

  • Key Labs:
    • Serum Lipase: ↑ in 4-8h, peaks 24h, normalizes 8-14d. More specific than amylase.
    • Serum Amylase: ↑ in 6-12h, normalizes 3-5d.
    • Trypsinogen (IRT): Newborn screen for Cystic Fibrosis.
  • Exocrine Function:
    • Fecal Elastase-1: Measures enzyme output.

    ⭐ Fecal elastase-1 is a highly sensitive and specific non-invasive test for assessing exocrine pancreatic function, particularly useful in children with suspected malabsorption.

  • Imaging:
    • USG: Initial; gallstones, pseudocysts.
    • CT/MRI/MRCP: Severity, complications, ductal anatomy.
  • Management Core:
    • Acute: IV fluids, analgesia, NPO (brief), early enteral nutrition.
    • Chronic: Pain control, PERT, fat-soluble vitamins.
    • Address underlying cause.

High‑Yield Points - ⚡ Biggest Takeaways

  • Cystic fibrosis: leading cause of exocrine pancreatic insufficiency in children.
  • Acute pancreatitis in children: often due to trauma, viral infections (mumps), or medications.
  • Recurrent/chronic pancreatitis: consider genetic mutations (PRSS1, CFTR).
  • Pancreatic pseudocysts: common after acute pancreatitis or abdominal trauma.
  • Serum lipase: more specific than amylase for diagnosing acute pancreatitis.
  • Shwachman-Diamond syndrome: features pancreatic insufficiency, neutropenia, skeletal abnormalities.

Practice Questions: Pancreatic Disorders

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Which of the following is NOT a recommended management strategy for acute pancreatitis?

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Flashcards: Pancreatic Disorders

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_____ sign is seen on barium swallow in CHPS because of indentation of base of duodenal bulb by pylorus

TAP TO REVEAL ANSWER

_____ sign is seen on barium swallow in CHPS because of indentation of base of duodenal bulb by pylorus

Mushroom/kirkin/umbrella

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