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Etiology of acute pancreatitis

Author
Santhi Swaroop Vege, MD
Section Editor
David C Whitcomb, MD, PhD
Deputy Editor
Shilpa Grover, MD, MPH

INTRODUCTION

Acute pancreatitis is an inflammatory condition of the pancreas characterized clinically by abdominal pain and elevated levels of pancreatic enzymes in the blood [1,2]. The pathogenesis of acute pancreatitis is not fully understood. Nevertheless, a number of conditions are known to induce this disorder with varying degrees of certainty, with gallstones and chronic alcohol abuse accounting for two-thirds or more cases in the United States (table 1). This list will undoubtedly continue to grow, and the number of cases diagnosed as "idiopathic" will decrease as our understanding of the disease improves.

This topic review will discuss the etiology of acute pancreatitis. The clinical manifestations, diagnosis, general principles of therapy, and pathogenesis of acute pancreatitis are discussed separately. (See "Predicting the severity of acute pancreatitis" and "Management of acute pancreatitis" and "Pancreatic debridement" and "Pathogenesis of acute pancreatitis".)

INCIDENCE AND MORTALITY

Accurate assessment of the incidence and mortality of acute pancreatitis is difficult as mild pancreatitis may be subclinical and deaths may occur before the diagnosis is made in severe and fulminant attacks.

The reported annual incidence of acute pancreatitis has ranged from 4.9 to 35 per 100,000 population [3]. Acute pancreatitis is the leading gastrointestinal cause of hospitalization in the United States [4]. The incidence of acute pancreatitis is increasing in many European and Scandinavian countries due to increased alcohol consumption and better diagnostic capability [5]. In a retrospective study from the Netherlands, the observed incidence of acute pancreatitis increased by 28 percent between 1985 and 1995.

Advances in diagnostic and therapeutic interventions have led to a decrease in mortality from acute pancreatitis, especially in those with severe, often necrotizing pancreatitis. Mortality in acute pancreatitis is usually due to systemic inflammatory response syndrome and organ failure in the first two-week period, while after two weeks it is usually due to sepsis and its complications [6,7].

                        

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Literature review current through: Nov 2016. | This topic last updated: Thu May 07 00:00:00 GMT 2015.
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