RCT

PANTER

A Step-Up Approach or Open Necrosectomy for Necrotizing Pancreatitis

NEJM, 2010 · Multicenter randomized controlled trial across 19 Dutch hospitals (n=88)

Clinical question

Does a minimally invasive step-up approach reduce complications and mortality compared with primary open necrosectomy in infected necrotizing pancreatitis?

Population: Patients with confirmed or suspected infected necrotizing pancreatitis
Intervention: Minimally invasive step-up approach (percutaneous or endoscopic catheter drainage, followed by minimally invasive retroperitoneal necrosectomy if needed)
Comparator: Primary open necrosectomy with continuous postoperative lavage
Primary outcome: Composite of major complications (new-onset organ failure, bleeding, enterocutaneous fistula) or death
Result: Primary endpoint occurred in 40% of the step-up group vs 69% of the open-necrosectomy group (relative risk 0.57, 95% CI 0.38 to 0.87, P=0.006). 35% of step-up patients were successfully treated with percutaneous drainage alone without requiring any surgical necrosectomy.

What the trial found

The minimally invasive step-up approach reduced major complications by 43% and avoided open surgery in over one-third of infected necrotizing pancreatitis cases.

Current guideline position

ACG, AGA, and IAP/APA guidelines strongly recommend a minimally invasive step-up approach over open necrosectomy for infected necrotizing pancreatitis.

Clinical interpretation

Transformed infected necrotizing pancreatitis management from immediate open surgery to initial percutaneous/endoscopic drainage.

Clinical Context & Relevant Topics (1)

Disease Reference

Severe Acute Pancreatitis

Revised Atlanta severity staging, goal-directed fluid resuscitation informed by WATERFALL, oral/enteral nutrition as tolerated, antibiotic avoidance in sterile necrosis, and the PANTER step-up approach.

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