Preventive IPMN Resection: UEG Journal | March 2026

• Intraductal papillary mucinous neoplasms (IPMNs) are recognized precursor lesions for pancreatic cancer, and current management aims to prevent progression to invasive disease.
• This multinational EAHPBA-endorsed study analyzed 1,728 patients who underwent preventive pancreatic resection for IPMN without preoperative evidence of invasive cancer.
• Overall outcomes after surgery were excellent, with an estimated 1-year overall survival of 97%.
• Long-term survival remained outstanding across most pathological subgroups, including low-grade dysplasia (LGD), high-grade dysplasia (HGD), and very early invasive cancers (T1a-b).
• Five-year overall survival was remarkably similar for LGD, HGD, and T1a-b invasive cancers, suggesting that carefully selected patients with very early invasive disease can achieve outcomes comparable to non-invasive lesions.
• Only patients with T1c invasive cancer demonstrated a meaningful decline in long-term survival.
• Age was an important determinant of outcome. Patients aged 75 years or older had significantly worse long-term survival compared with younger individuals.
• A striking finding was that 63% of all resections revealed only low-grade dysplasia, meaning that most operated patients did not harbor advanced precancerous disease or invasive cancer.
• Additionally, 61% of patients underwent surgery without prior surveillance, suggesting that many lesions may have been resected immediately rather than monitored over time.
• These findings reinforce concerns regarding potential overtreatment of IPMN, particularly given the morbidity associated with pancreatic surgery.
• The study supports the safety and effectiveness of surgery when appropriately indicated, but highlights the urgent need for better risk stratification tools.
• Future management should focus on identifying which patients truly require immediate surgery versus those who can be safely monitored.
• Improved imaging, molecular biomarkers, cyst fluid analysis, and surveillance strategies may help reduce unnecessary resections.
• The results also suggest that preventing progression to T1c or more advanced invasive cancer should remain a major therapeutic goal.
• The study provides reassurance that delayed surgery during surveillance does not necessarily compromise outcomes if intervention occurs before significant invasive progression develops.

Bottom line: Preventive IPMN resection is associated with excellent long-term survival, but the high proportion of low-grade dysplasia among resected lesions highlights substantial overtreatment. Future efforts should focus on improving patient selection and safely expanding surveillance strategies to avoid unnecessary pancreatic surgery.