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  • Title: Surgical management of insulinomas in multiple endocrine neoplasia type 1.
    Author: Giudici F, Nesi G, Brandi ML, Tonelli F.
    Journal: Pancreas; 2012 May; 41(4):547-53. PubMed ID: 22228047.
    Abstract:
    OBJECTIVE: This study aimed to evaluate the accuracy of preoperative and intraoperative diagnostic tools and the surgical strategy to obtain cure in multiple endocrine neoplasia type 1 (MEN-1) patients affected with insulinoma. METHODS: Eight MEN-1 patients (1992-2009) were operated on for hypoglycemic crisis. Preoperative tumor localization was carried out. Ultrasound and modification of the insulin/glucose (I/G) ratio were applied intraoperatively. Pancreatic lesions larger than 0.5 cm were removed by resection of the most affected pancreatic region and by enucleation of nodules in least affected regions. RESULTS: Two pancreatoduodenectomies and 6 distal pancreatectomies were performed; enucleation of nodules was necessary in 6 patients. There was no postoperative mortality. At the histopathologic analysis, a mean of 6 macrotumors and of 15.5 microlesions were found. Intraoperative ultrasound proved a sensitivity of 87.5% for detecting pancreatic insulinoma. Decrease in the I/G ratio after resection predicted postoperative outcome in all patients. At a mean follow-up of 81.5 months, all patients were normoglycemic with no evidence of disease recurrence. CONCLUSIONS: Multiple endocrine neoplasia type 1 insulinomas should be considered surgically curable. Pancreatic resection seems preferable to a less radical surgical approach in ensuring higher cure rates. Intraoperative ultrasound and I/G ratio are of value in the assessment of surgical decision and in the evaluation of the surgical cure.
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