THE MANAGEMENT OF ACUTE PANCREATITIS Recent Advances 1.

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Presentation transcript:

THE MANAGEMENT OF ACUTE PANCREATITIS Recent Advances 1

2 Recent advances in epidemiology and evaluation of AP Epidemiology AP is the third most common cause of gastrointestinal-related hospitalizations and fourth most common cause of readmission in 2014 Persistent organ failure (POF) lasting more than 48 hours, is the major cause of death in AP. Mortality: Single organ failure 27%-36% Multiorgan failure 47%

Recent advances in epidemiology and evaluation of AP Other factors associated with increased hospital mortality Infected pancreatic necrosis Diabetes mellitus Hospital-acquired infection Advanced age (70 years and older), Obesity 3

4 Recent advances in epidemiology and evaluation of AP Risk factor Current and former tobacco use Alcohol (five standard drinks per day for 5 years is a commonly used cut-off) New evidence suggests that the relationship between the dose of alcohol and risk of AP differs by sex, linearly in men but nonlinearly (J-shaped) in women Cannabis (Toxin-induced AP) Patients with IBD have a 2.9-fold higher risk for AP

5 Recent advances in epidemiology and evaluation of AP Alcohol and gallstones remain the most prevalent aetiologies for AP Hypertriglyceridemiais the second most common cause of acute pancreatitis in Asia

Recent advances in epidemiology and evaluation of AP Guidelines and recent studies of AP raise questions about the threshold of hypertriglyceridemia American and European societies define the threshold for triglycerides at 885-1,000 mg/dL 6

Recent advances evaluation of AP Diagnosis of AP from the revised Atlanta classification: The recommended timing and indications for offering cross- sectional imaging are after hours in patients with no improvement to initial care. EUS has better diagnostic accuracy and sensitivity, compared MRCP ERCP is not recommended as a pure diagnostic tool, owing to the availability of other diagnostic tests and a complication rate of 5%-10% 7

Risk stratification The goals of using risk stratification tools in AP are to identify patients at risk for developing major outcomes Two recent guidelines affirmed the importance of predicting the severity of AP, using one or more predictive tools 8 SimpleComplex Blood urea nitrogen (BUN) and hemoconcentration, Disease-modifying patient variables Biomarkers (i.e., angiopoietin 2) APACHE II BISAP SIRS criteria EWS PASS Glasgow-Imrie score

Recent advances in early treatment of AP Pain management Recent clinical and translational studies raise questions about the current practice of using opioids for pain management A provocative, multicenter, retrospective cohort study reported lower 30-day mortality among critically ill patients who received epidural analgesia versus standard care without epidural analgesia. 9

Intravenous fluid administration Supportive care with the use of IV fluid hydration is a mainstay of treatment for AP in the first hours. The 2018 AGA guidelines endorse a conditional recommendation for using goal-directed therapy for initial fluid management Do not recommend for or against normal saline versus lactated Ringer’s (LR), but do advise against the use of hydroxyethyl starch fluids 10 Recent advances in early treatment of AP

11 Intravenous fluid administration

Feeding: recently shifted away from patients remaining nil per os (NPO) Current guidelines advocate for early oral feeding (within 24 hours) in mild AP There is no clear cutoff point for initiating feeding for those with severe AP (suggested within hours) 12 Recent advances in early treatment of AP NPO when compared with early oral feeding has a 2.5- fold higher risk for interventions for necrosis.

Enteral nutrition significantly reduces the risk of: Infected peripancreatic necrosis Single organ failure Multiorgan failure Further studies are required to determine the optimal timing, rate, and formulation of enteral nutrition in severe AP 13 Recent advances in early treatment of AP

Antibiotics and probiotics Current guidelines do not support the use of prophylactic antibiotics to prevent infection in necrotizing AP and severe AP Guidelines advocate against the use of probiotics for severe AP, because of increased mortality risk 14

Timing of ERCP in acute biliary pancreatitis There is universal agreement for offering urgent ERCP (within 24 hours) in biliary AP complicated by cholangitis. 15 Urgent ERCP for acute biliary pancreatitis with cholangitis.

Timing of ERCP in acute biliary pancreatitis In the absence of cholangitis, the timing of ERCP for AP with persistent biliary obstruction is less clear (the 2018 AGA guidelines advocate against) There are limited data to guide decision making of when nonurgent ERCP should be performed in hospitalized patients with biliary AP with persistent obstruction and no cholangitis 16

Alcohol and smoking cessation The AGA technical review advocates for brief alcohol intervention during hospitalization for alcohol-induced AP Cessation of smoking – an established independent risk factor of AP – recurrent AP and chronic pancreatitis, should also be recommended as part of the management of AP. 17

Cholecystectomy Evidence supports same-admission cholecystectomy for mild gallstone. When compared with delayed cholecystectomy, same-admission cholecystectomy significantly reduced gallstone-related complications 18

Cholecystectomy Delaying cholecystectomy 6 weeks in patients with moderate-severe gallstone AP appears to reduce morbidity An ongoing RCT, the APEC trial, aims to determine whether early ERCP with biliary sphincterotomy reduces major complications or death when compared with no intervention for biliary AP in patients at high risk of complications 19

Chemoprevention and IV fluid management of post-ERCP pancreatitis Multiple RCTs, meta-analyses, and systematic reviews indicate that rectal NSAIDs reduce post- ERCP pancreatitis onset Placement of a pancreatic duct stent may decrease the risk of severe post-ERCP pancreatitis in high-risk patients Greater periprocedural IV fluid was an independent protective factor against moderate to severe PEP 20

Implications for clinical practice The diagnosis and optimal management of AP require a systematic approach with multidisciplinary decision making Morbidity and mortality in AP are driven by early or late POF, and the latter often is triggered by infected necrosis 21

Implications for clinical practice Regardless of pancreatitis severity, recommended treatment interventions include: Goal-directed IV fluid resuscitation Early feeding by mouth or enteral tube when necessary, Avoidance of prophylactic antibiotics Avoidance of probiotics Urgent ERCP for patients with acute biliary pancreatitis complicated by cholangitis 22

Implications for clinical practice Key measures for preventing hospital readmission and pancreatitis include: Same-admission cholecystectomy for acute biliary pancreatitis Alcohol and smoking cessation Preventive measures for post-ERCP pancreatitis in patients undergoing ERCP include: Rectal indomethacin Prophylactic pancreatic duct stent placement Periprocedural fluid resuscitation 23

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