Pancreatitis: Difference between revisions

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imported>Robert Badgett
(→‎Acute pancreatitis: Adapted from content I helped write at WP)
imported>Robert Badgett
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==Treatment==
==Treatment==
===Acute pancreatitis===
===Acute pancreatitis===
====Bowel rest====
Approximately 20% of patients have a relapse of pain during acute pancreatitis.<ref name="pmid17573797">{{cite journal |author=Petrov MS, van Santvoort HC, Besselink MG, Cirkel GA, Brink MA, Gooszen HG |title=Oral Refeeding After Onset of Acute Pancreatitis: A Review of Literature |journal= |volume= |issue= |pages= |year=2007 |pmid=17573797 |doi=10.1111/j.1572-0241.2007.01357.x}}</ref> Approximately 75% of relapses occur within 48 hours of oral refeeding.
The incidence of relapse after oral refeeding may be reduced by post-pyloric enteral rather than parenteral feeding prior to oral refeeding.<ref name="pmid17573797"/>


===Chronic pancreatitis===
===Chronic pancreatitis===

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Pancreatitis is "inflammation of the pancreas. Pancreatitis is classified as acute unless there are computed tomographic or endoscopic retrograde cholangiopancreatographic findings of chronic pancreatitis (International Symposium on Acute Pancreatitis, Atlanta, 1992). The two most common forms of acute pancreatitis are alcoholic pancreatitis and gallstone pancreatitis."[1]

Classification

Acute pancreatitis

Acute necrotizing pancreatitis

Acute necrotizing pancreatitis is a "severe form of acute inflammation of the pancreas characterized by one or more areas of necrosis in the pancreas with varying degree of involvement of the surrounding tissues or organ systems. Massive pancreatic necrosis may lead to diabetes mellitus, and malabsorption.[2]

Chronic pancreatitis

Chronic pancreatitis is "inflammation of the pancreas that is characterized by recurring or persistent abdominal pain with or without steatorrhea or diabetes mellitus. It is characterized by the irregular destruction of the pancreatic parenchyma which may be focal, segmental, or diffuse.[3]

Etiology/cause

The most common causes are gallstones and alcohol.[4]

Diagnosis

Acute pancreatitis

The diagnostic criteria for pancreatitis are "two of the following three features: 1) abdominal pain characteristic of acute pancreatitis, 2) serum amylase and/or lipase ≥3 times the upper limit of normal, and 3) characteristic findings of acute pancreatitis on CT scan."[5]

Two clinical practice guidelines state:

"It is usually not necessary to measure both serum amylase and lipase. Serum lipase may be preferable because it remains normal in some nonpancreatic conditions that increase serum amylase including macroamylasemia, parotitis, and some carcinomas. In general, serum lipase is thought to be more sensitive and specific than serum amylase in the diagnosis of acute pancreatitis"[5]
"Although amylase is widely available and provides acceptable accuracy of diagnosis, where lipase is available it is preferred for the diagnosis of acute pancreatitis (recommendation grade A)"[6]

Chronic pancreatitis

Treatment

Acute pancreatitis

Bowel rest

Approximately 20% of patients have a relapse of pain during acute pancreatitis.[7] Approximately 75% of relapses occur within 48 hours of oral refeeding.

The incidence of relapse after oral refeeding may be reduced by post-pyloric enteral rather than parenteral feeding prior to oral refeeding.[7]

Chronic pancreatitis

References

  1. Anonymous (2024), Pancreatitis (English). Medical Subject Headings. U.S. National Library of Medicine.
  2. Anonymous (2024), Acute necrotizing pancreatitis (English). Medical Subject Headings. U.S. National Library of Medicine.
  3. Anonymous (2024), Chronic pancreatitis (English). Medical Subject Headings. U.S. National Library of Medicine.
  4. Anonymous (2024), Pancreatitis (English). Medical Subject Headings. U.S. National Library of Medicine.
  5. 5.0 5.1 Banks P, Freeman M (2006). "Practice guidelines in acute pancreatitis". Am J Gastroenterol 101 (10): 2379-400. DOI:10.1111/j.1572-0241.2006.00856.x. PMID 17032204. Research Blogging. Cite error: Invalid <ref> tag; name "pmid17032204" defined multiple times with different content
  6. UK Working Party on Acute Pancreatitis (2005). "UK guidelines for the management of acute pancreatitis". Gut 54 Suppl 3: iii1-9. DOI:10.1136/gut.2004.057026. PMID 15831893. Research Blogging.
  7. 7.0 7.1 Petrov MS, van Santvoort HC, Besselink MG, Cirkel GA, Brink MA, Gooszen HG (2007). "Oral Refeeding After Onset of Acute Pancreatitis: A Review of Literature". DOI:10.1111/j.1572-0241.2007.01357.x. PMID 17573797. Research Blogging.