Acute Pancreatitis

Confirm acute pancreatitis when at least two of three Revised Atlanta features are present: characteristic pancreatic-type pain, serum lipase or amylase at least three times the upper limit of normal, or characteristic pancreatic imaging. Do not obtain pancreatic CT solely to confirm an otherwise clear diagnosis; reserve CT, MRI, or ultrasound-directed pancreatic imaging for diagnostic uncertainty, failure to improve after 48–72 hours, or suspected complications. WileyWileyMechanisms and Management of Acute Pancreatitis - Garber - 2018 - Gastroenterology Research and Practice - Wiley Online Library

At presentation, calculate BISAP and document SIRS. BISAP assigns one point each for BUN greater than 25 mg/dL, altered mental status, SIRS, age greater than 60 years, and pleural effusion; reported mortality ranges from less than 1% with BISAP 0 to 22% with BISAP 5. SIRS on admission identifies increased risk for severe disease and should trigger closer reassessment during early resuscitation. WileyWileyMechanisms and Management of Acute Pancreatitis - Garber - 2018 - Gastroenterology Research and Practice - Wiley Online Library

Assess cardiovascular, renal, and pulmonary dysfunction with the modified Marshall score when severity is uncertain or deterioration occurs. A score of 2 or greater in cardiovascular, renal, or respiratory domains meets the definition of organ failure. Persistent organ dysfunction, escalating oxygen requirement, hypotension, or inability to safely administer replacement fluid should prompt monitored or critical-care level management rather than protocolized volume loading. WileyWileyMechanisms and Management of Acute Pancreatitis - Garber - 2018 - Gastroenterology Research and Practice - Wiley Online Library

Choose lactated Ringer’s as the preferred crystalloid when intravenous resuscitation is indicated. Lactated Ringer’s has reduced systemic inflammation compared with normal saline in acute pancreatitis, whereas normal saline has been associated with hyperchloremic acidosis and a proinflammatory effect. The Lancet+4The LancetAcute pancreatitis - The LancetBMJManaging complicated pancreatitis with more knowledge and a bigger toolbox! | Trauma Surgery & Acute Care OpenBMJManaging complicated pancreatitis with more knowledge and a ...GastroenterologyDiagnosis and Management of Acute Pancreatitis - GastroenterologyGastroenterologyClinical Management of Patients With Acute Pancreatitis

Avoid an early aggressive resuscitation strategy. In the WATERFALL randomized trial, the aggressive-fluid group had more fluid overload without clinical-outcome improvement, leading to early trial termination. A meta-analysis of 11 studies likewise found no mortality difference between aggressive and nonaggressive intravenous fluid strategies but found greater fluid-overload risk with aggressive treatment. BMJ+1BMJManaging complicated pancreatitis with more knowledge and a bigger toolbox! | Trauma Surgery & Acute Care OpenBMJManaging complicated pancreatitis with more knowledge and a ...

Reassess fluid need serially rather than treating a prescribed volume as an endpoint. The initial clinical objective is correction of hypoperfusion while avoiding pulmonary and systemic congestion; this tradeoff is especially narrow with preexisting renal insufficiency or heart failure. Escalating BUN-based severity risk, SIRS, pleural effusion, or organ dysfunction warrants more intensive observation, but none justifies unmonitored fluid accumulation. Nature+1NatureAcute pancreatitis: mechanisms and therapeutic approaches - NatureWileyMechanisms and Management of Acute Pancreatitis - Garber - 2018 - Gastroenterology Research and Practice - Wiley Online Library

For mild or moderate acute pancreatitis, use only a short period of fasting, then restart oral intake as tolerated. Patients can generally progress from clear liquids to a low-fat solid diet and usually do not require formal nutritional-support interventions. BMJ+1BMJManaging complicated pancreatitis with more knowledge and a bigger toolbox! | Trauma Surgery & Acute Care OpenBMJManaging complicated pancreatitis with more knowledge and a ...

A low-fat solid diet can be considered at admission in selected mild or moderate cases rather than waiting for conventional refeeding milestones. The multicenter PADI trial compared immediate low-fat solid feeding after admission with a conventional oral-refeeding approach, supporting a move away from prolonged pancreatic “rest.” BMJ+1BMJManaging complicated pancreatitis with more knowledge and a bigger toolbox! | Trauma Surgery & Acute Care OpenBMJManaging complicated pancreatitis with more knowledge and a ...

If oral feeding cannot be established or is repeatedly interrupted in moderately severe or severe disease, do not continue fasting by default. Transition to enteral feeding rather than parenteral nutrition unless enteral delivery is not feasible. BMJ+3BMJManaging complicated pancreatitis with more knowledge and a bigger toolbox! | Trauma Surgery & Acute Care OpenBMJManaging complicated pancreatitis with more knowledge and a ...WileyNutrition Support in Acute Pancreatitis: A Systematic Review of the ...WileyGuidelines for the management of acute pancreatitis - TOOULI - 2002

Provide early enteral nutrition for moderately severe or severe acute pancreatitis when adequate oral feeding is not possible. Clinical benefit from early enteral feeding in these groups is considered established, and early enteral nutrition reduces bacterial-translocation risk by preserving gut integrity. BMJ+2BMJManaging complicated pancreatitis with more knowledge and a bigger toolbox! | Trauma Surgery & Acute Care OpenBMJManaging complicated pancreatitis with more knowledge and a ...WileyDrivers of Oxidative Stress in Acute Pancreatitis - ASPEN Journals

Nasogastric feeding is an acceptable route; randomized evidence in severe acute pancreatitis found similar results for nasogastric versus nasojejunal feeding. Select the route that can be placed and delivered reliably, while reassessing intolerance or aspiration risk clinically. The Lancet+1The LancetPancreatitis - The LancetGastroenterologyInitial Medical Treatment of Acute Pancreatitis

Reserve parenteral nutrition for circumstances in which enteral feeding cannot be used or cannot meet nutritional needs. Compared with parenteral nutrition, enteral feeding attenuates the acute-phase response and improves disease severity in acute pancreatitis. Wiley+1WileyNutrition Support in Acute Pancreatitis: A Systematic Review of the ...WileyGuidelines for the management of acute pancreatitis - TOOULI - 2002

When pain, systemic inflammation, organ dysfunction, or feeding failure does not improve after 48–72 hours, obtain pancreatic imaging to assess complications. Contrast-enhanced CT is particularly useful when infected necrosis is suspected after lack of improvement despite treatment. Nature+1NatureEarly endoscopic treatment of symptomatic pancreatic necrotic collections | Scientific ReportsWileyMechanisms and Management of Acute Pancreatitis - Garber - 2018 - Gastroenterology Research and Practice - Wiley Online Library

Do not treat suspected infected necrosis with fluids or nutrition changes alone. Imaging-defined necrotic collections and persistent clinical deterioration require management planning around organ dysfunction, infection assessment, nutritional support, and referral-capable endoscopic, radiologic, or surgical expertise when intervention is needed. Early endoscopic treatment studies continue to describe intensive fluid replacement, analgesia, and nutrition as baseline management while evaluating necrotic collections. NatureNatureEarly endoscopic treatment of symptomatic pancreatic necrotic collections | Scientific Reports

If biliary pancreatitis is accompanied by cholangitis, evaluate for biliary obstruction and ERCP-directed therapy rather than relying on medical resuscitation alone. ERCP timing carries procedure-related risk, and urgent intervention should be reserved for an obstruction-driven indication such as cholangitis rather than pancreatitis severity alone. NatureNatureIncreased ERCP-related adverse event from premature urgent ERCP following symptom onset in acute biliary pancreatitis with cholangitis | Scientific Reports