Describe the necrotizing pancreatitis.
Definition: necrosis of pancreatic and peripancreatic tissue
Clinical features: fever, persistent tachycardia, or insufficient symptomatic improvement over several days
Diagnostics: nonenhancing areas of pancreatic parenchyma on CECT abdomen
Treatment
Sterile necrotizing pancreatitis can usually be managed conservatively.
Encourage enteral nutrition if feasible.
Provide supplemental nutritional support as needed.
Describe the infected necrotizing pancreatitis.
Definition: bacterial superinfection of necrotic pancreatic parenchyma
Clinical features: similar to those of necrotizing pancreatitis
Diagnostics
Laboratory studies: persistent or worsening leukocytosis, bacteremia, increasing inflammatory markers
CECT abdomen: gas within the pancreas and/or peripancreatic tissue or fluid collections
Fine-needle aspiration of necrotic areas: not routinely recommended Treatment
Broad-spectrum empiric antibiotics with good tissue penetration (e.g., carbapenems) for 4 weeks
Drainage of infected material if there is clinical deterioration or persistence of symptoms despite antibiotic therapy
Prognosis: high mortality rate (30%
Describe the walled-off necrosis.
Definition
An encapsulated collection of sterile necrotic material, usually occurring > 4 weeks after the onset of necrotizing pancreatitis
Previously known as pancreatic abscess
Diagnostics: CT abdomen with IV contrast showing an encapsulated heterogeneous collection containing fluid and debris
Treatment (of symptomatic walled-off necrosis): percutaneous drainage or transmural endoscopic necrosectomy
List other localized complications.
Pancreatic pseudocyst
Abdominal compartment syndrome
Pancreatic hemorrhage (blood vessel erosion with bleeding)
List systemic complications.
Shock, SIRS, sepsis, DIC
Pneumonia, respiratory failure, ARDS
Pleural effusion
Prerenal failure due to volume depletion
Hypocalcemia
Paralytic ileus
Pancreatic ascites
Last changed2 years ago