Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] · 2022
Long-term outcomes of patients with multifocal intraductal papillary mucinous neoplasm following pancreatectomy.
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Hashimoto Daisuke, Satoi Sohei, Yamamoto Tomohisa, Yamaki So, Ishida Mitsuaki, Hirooka Satoshi, Shibata Nobuhiro, Boku Shogen, Ikeura Tsukasa, Sekimoto Mitsugu
Аннотация
BACKGROUND: The decision to perform surgery is complicated by the presence of multifocal (MF) intraductal papillary mucinous neoplasms (IPMNs), which are characterized by two or more cysts located in different areas of the pancreas.
OBJECTIVES: We aimed to establish a suitable treatment strategy and surgical indications in patients with MF-IPMNs.
METHODS: This single-center retrospective study included patients with IPMNs who underwent pancreatic resection from 2006 to 2020. Patients with distant metastasis and patients with IPMNs of the main pancreatic duct were excluded from the analysis.
RESULTS: After excluding 22 patients, 194 patients were included. One hundred thirteen patients (58.2%) had unifocal IPMNs, while 81 patients (41.8%) had MF-IPMNs. There were no significant differences in the 5-year disease-specific survival (DSS) rate (92.3% vs. 92.4%, p = 0.976) and the 5-year disease-free survival rate (88.6% vs. 86.5%, p = 0.461). The multivariate analysis identified high-risk stigmata, invasive carcinoma, and lymph node metastasis as independent predictors of DSS. The presence of cystic lesions in the pancreatic remnant was not a predictor of survival. Even in the MF-IPMN group, there were no significant differences in DSS when stratified by procedure (total pancreatectomy vs. segmental pancreatectomy, p = 0.268) or presence of cystic lesions in the pancreatic remnant (p = 0.476). The multivariate analysis identified lymph node metastasis as an independent predictor of DSS in the MF-IPMN group.
CONCLUSIONS: In patients with MF-IPMNs, each cyst should be evaluated individually for the presence of features associated with malignancy.
OBJECTIVES: We aimed to establish a suitable treatment strategy and surgical indications in patients with MF-IPMNs.
METHODS: This single-center retrospective study included patients with IPMNs who underwent pancreatic resection from 2006 to 2020. Patients with distant metastasis and patients with IPMNs of the main pancreatic duct were excluded from the analysis.
RESULTS: After excluding 22 patients, 194 patients were included. One hundred thirteen patients (58.2%) had unifocal IPMNs, while 81 patients (41.8%) had MF-IPMNs. There were no significant differences in the 5-year disease-specific survival (DSS) rate (92.3% vs. 92.4%, p = 0.976) and the 5-year disease-free survival rate (88.6% vs. 86.5%, p = 0.461). The multivariate analysis identified high-risk stigmata, invasive carcinoma, and lymph node metastasis as independent predictors of DSS. The presence of cystic lesions in the pancreatic remnant was not a predictor of survival. Even in the MF-IPMN group, there were no significant differences in DSS when stratified by procedure (total pancreatectomy vs. segmental pancreatectomy, p = 0.268) or presence of cystic lesions in the pancreatic remnant (p = 0.476). The multivariate analysis identified lymph node metastasis as an independent predictor of DSS in the MF-IPMN group.
CONCLUSIONS: In patients with MF-IPMNs, each cyst should be evaluated individually for the presence of features associated with malignancy.