Management of Acute Pancreatitis
Severity Assessment and Triage
All patients with severe acute pancreatitis must be managed in an intensive care unit (ICU) or high-dependency unit (HDU) with full monitoring and systems support. 1
- Severity stratification should be completed within 48 hours using clinical impression, APACHE II score, C-reactive protein, Glasgow score, or persistent organ failure (>48 hours) 2
- Mild acute pancreatitis (80% of cases) has <5% mortality and runs a self-limiting course 2
- Severe acute pancreatitis (20% of cases) accounts for 95% of deaths with approximately 15% hospital mortality 2
- Infected necrosis with organ failure carries 35.2% mortality, while sterile necrosis with organ failure has 19.8% mortality 2
Fluid Resuscitation
Use Lactated Ringer's solution rather than normal saline for fluid resuscitation, and avoid aggressive fluid protocols in favor of moderate, goal-directed resuscitation. 3
- Lactated Ringer's solution significantly reduces systemic inflammatory response syndrome (SIRS) at 24 hours compared to normal saline (84% reduction vs 0%, P=0.035) and lowers C-reactive protein levels (51.5 vs 104 mg/dL, P=0.02) 4
- Moderate fluid resuscitation (10 ml/kg bolus if hypovolemic or no bolus if normovolemic, followed by 1.5 ml/kg/hour) is superior to aggressive resuscitation (20 ml/kg bolus followed by 3 ml/kg/hour) 3
- Aggressive fluid resuscitation increases fluid overload risk (20.5% vs 6.3%, P=0.004) without improving clinical outcomes 3
- Target urine output >0.5 ml/kg body weight 1, 2
- Avoid hydroxyethyl starch (HES) fluids as they increase risk of multiple organ failure 2
Monitoring Requirements
For severe cases, establish peripheral venous access plus central venous line for fluid administration and CVP monitoring, along with urinary catheter and nasogastric tube. 1
- Regular hourly assessment of vital signs: pulse, blood pressure, central venous pressure, respiratory rate, oxygen saturation, urine output, and temperature 5, 1
- Regular arterial blood gas analysis is essential as hypoxia and acidosis may be detected late by clinical means alone 5
- Monitor hematocrit, blood urea nitrogen, creatinine, and lactate to assess adequate tissue perfusion 1
- Strict asepsis must be observed in placement and care of invasive monitoring equipment as these may serve as sources of subsequent sepsis 5
Pain Management
Use Dilaudid as first-line opioid in non-intubated patients, and integrate patient-controlled analgesia (PCA) with every pain management strategy. 1
- Pain control is a clinical priority requiring aggressive management 1, 2
- Dilaudid is preferred over morphine or fentanyl in non-intubated patients 1
- Consider epidural analgesia as an alternative or adjunct to intravenous analgesia in a multimodal approach 1, 2
- Patient-controlled analgesia (PCA) should be integrated with every pain management strategy 1
- Avoid NSAIDs in acute kidney injury 1
Nutritional Support
Initiate early enteral nutrition rather than total parenteral nutrition (TPN) to prevent gut failure and infectious complications. 1, 2
- Both gastric and jejunal feeding can be delivered safely 1
- Early enteral nutrition should be initiated even in severe cases 1
- Early oral feeding within 24 hours is recommended in mild cases as tolerated 2
- TPN should be avoided, but partial parenteral nutrition integration can be considered if enteral route is not completely tolerated 1
- If ileus persists for more than five days, parenteral nutrition will be required 1
Antibiotic Therapy
Do not administer prophylactic antibiotics routinely in mild acute pancreatitis, as there is no evidence they improve outcomes or reduce septic complications. 1, 2
- In severe acute pancreatitis with evidence of pancreatic necrosis, prophylactic antibiotics may reduce complications and deaths, though evidence is conflicting 1, 2
- Intravenous cefuroxime is a reasonable balance between efficacy and cost for prophylaxis in severe cases if used 5, 1
- Antibiotics are warranted when specific infections occur (chest, urine, bile, or cannula related) 1
- ERCP should always be performed under antibiotic cover 5
Management of Gallstone Pancreatitis
Perform urgent therapeutic ERCP within 72 hours in patients with acute gallstone pancreatitis who have severe disease, cholangitis, jaundice, or dilated common bile duct. 1, 2
- Severe gallstone pancreatitis with increasingly deranged liver function tests and signs of cholangitis (fever, rigors, positive blood cultures) requires immediate therapeutic ERCP 5
- Failure of the patient's condition to improve within 48 hours despite intensive initial resuscitation is an indication for urgent ERCP and sphincterotomy 5
- All patients undergoing early ERCP for severe gallstone pancreatitis require endoscopic sphincterotomy whether or not stones are found in the bile duct 1
- For mild gallstone pancreatitis, perform laparoscopic (or open) cholecystectomy within two to four weeks, preferably during the same hospital admission to prevent recurrent pancreatitis 5
Imaging Strategy
Obtain dynamic CT scanning with non-ionic contrast within three to 10 days of admission in severe cases to identify pancreatic necrosis and guide management. 5, 1
- Routine CT scanning is unnecessary in mild cases unless there are clinical signs of deterioration 1, 2
- Follow-up CT is recommended only if the patient's clinical status deteriorates or fails to show continued improvement in severe cases 1
- Patients with mild pancreatitis require further CT only if there is a change in clinical status suggesting a new complication 1
Management of Infected Necrosis
Consider minimally invasive approaches for debridement of infected necrosis before open surgical necrosectomy. 1, 2
- Infected necrosis is the most serious local complication with a high mortality rate (40%) 1
- Infected necrosis requires intervention to completely debride all cavities containing necrotic material 2
- Surgical debridement may be necessary for infected necrosis 1
- Local complications such as pseudocyst and pancreatic abscess often require surgical, endoscopic, or radiological intervention 1
- Delaying drainage of infected collections leads to sepsis and increased mortality 2
Specialist Care and Multidisciplinary Approach
Every hospital that receives acute admissions should have a single nominated clinical team to manage all patients with acute pancreatitis. 1, 2
- Management in, or referral to, a specialist unit is necessary for patients with extensive necrotizing pancreatitis (>30% necrosis) or with other complications 1
- A multidisciplinary team involving intensivists, surgeons, gastroenterologists, and radiologists is essential 1, 2
- Each case should be managed in an individualized way by a multidisciplinary specialist pancreatic team 1
Pharmacological Treatment
No specific pharmacological treatment except for organ support and nutrition has proven effective. 1