gastrointestinal disorders
Acute Pancreatitis
Classification of Acute Pancreatitis
The 2012 Revised Atlanta Classification ( Classification reference ) categorizes acute pancreatitis by type and severity. Types of acute pancreatitis include Interstitial pancreatitis Necrotizing pancreatitis Interstitial pancreatitisis defined by the presence of an enlarged pancreas on imaging. Peripancreatic stranding may be seen and is a sign of inflammation. Most patients develop this type of pancreatitis. The majority of cases are self-limited. Necrotizing pancreatitisis defined by the presence of pancreatic and/or peripancreatic necrosis. It is best seen on contrast-enhanced cross-sectional imaging. Necrotizing pancreatitis occurs in about 5 to 10% of patients with acute pancreatitis and is associated with a prolonged and more severe disease course. Severity of acute pancreatitis can be classified as Mild Moderately severe Severe Inmild acute pancreatitis,inflammation is confined to the pancreas and its close vicinity. Patients do not have organ failure or systemic or local complications. Mortality is rare. Inmoderately severe acute pancreatitis,patients have local or systemic complications but no organ failure, or only transient organ failure (resolves within 48 hours). Insevere acute pancreatitis,there is persistent single or multiorgan failure (> 48 hours). Most patients have one or more local complications. The mortality rate is > 30%. 1.Banks PA, Bollen TL, Dervenis C, et al: Classification of acute pancreatitis 2012: Revision of the Atlanta classification and definitions by international consensus.Gut62:102–111, 2013. doi: 10.1136/gutjnl-2012-302779 