what is necrotizing pancreatitis

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Nature

Necrotizing pancreatitis is a severe complication of acute pancreatitis where part of the pancreas tissue dies (necrosis) due to inflammation and injury. This happens when the inflammation is so intense that it cuts off blood supply to the pancreatic tissue, causing tissue death

. The dead pancreatic tissue can become infected, leading to serious complications including systemic infection, organ failure, and potentially death

Key Points about Necrotizing Pancreatitis:

  • Cause: It usually starts as acute pancreatitis, often triggered by gallstones blocking the pancreatic duct or excessive alcohol use. Severe inflammation activates pancreatic enzymes inside the pancreas, which digest the tissue itself, causing damage and necrosis
  • Pathophysiology: The severe inflammation leads to ischemia (lack of blood flow), causing pancreatic cells to die. The necrosis can affect both the pancreas and surrounding tissues
  • Prevalence: Necrotizing pancreatitis occurs in about 5-20% of acute pancreatitis cases
  • Symptoms: Initially similar to acute pancreatitis (severe abdominal pain, nausea, vomiting), but as necrosis develops, symptoms may worsen and include signs of infection or systemic illness
  • Complications: Infection of necrotic tissue is a major risk, which can cause sepsis and increase mortality. Other complications include organ failure and prolonged illness
  • Diagnosis: Imaging such as contrast-enhanced CT scan is used to detect necrosis, typically performed a few days after symptom onset. Necrotic areas appear as non-enhancing regions in the pancreas
  • Treatment: Management includes hospitalization, supportive care with fluids and nutrition, and monitoring for infection. If infection occurs, removal of dead tissue through minimally invasive procedures or surgery may be necessary
  • Prognosis: Necrotizing pancreatitis has a higher mortality rate compared to mild pancreatitis, especially if infection develops. Mortality can be up to 14% if sterile, and 20-30% or higher if infected and not properly drained

In summary, necrotizing pancreatitis is a life-threatening condition where pancreatic tissue dies due to severe inflammation and ischemia, often requiring intensive medical care and sometimes surgical intervention to manage complications