Optimal surveillance of intraductal papillary mucinous neoplasms of the pancreas focusing on remnant pancreas recurrence after surgical resection

Abstract Background The international consensus guidelines for intraductal papillary mucinous neoplasm of the pancreas (IPMN) presented clinical features as indications for surgery. Whereas surveillance for recurrence, including de novo lesions, is essential, optimal surveillance protocols have not...

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Main Authors: Tomokazu Fuji, Yuzo Umeda, Kosei Takagi, Ryuichi Yoshida, Kazuhiro Yoshida, Kazuya Yasui, Kazuyuki Matsumoto, Hironari Kato, Takahito Yagi, Toshiyoshi Fujiwara
Format: Article
Language:English
Published: BMC 2022-05-01
Series:BMC Cancer
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Online Access:https://doi.org/10.1186/s12885-022-09650-w
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author Tomokazu Fuji
Yuzo Umeda
Kosei Takagi
Ryuichi Yoshida
Kazuhiro Yoshida
Kazuya Yasui
Kazuyuki Matsumoto
Hironari Kato
Takahito Yagi
Toshiyoshi Fujiwara
author_facet Tomokazu Fuji
Yuzo Umeda
Kosei Takagi
Ryuichi Yoshida
Kazuhiro Yoshida
Kazuya Yasui
Kazuyuki Matsumoto
Hironari Kato
Takahito Yagi
Toshiyoshi Fujiwara
author_sort Tomokazu Fuji
collection DOAJ
description Abstract Background The international consensus guidelines for intraductal papillary mucinous neoplasm of the pancreas (IPMN) presented clinical features as indications for surgery. Whereas surveillance for recurrence, including de novo lesions, is essential, optimal surveillance protocols have not been established. Aim and methods This study aimed to assess the clinical features of recurrence at the remnant pancreas (Rem-Panc) and extra-pancreas (Ex-Panc) after surgery for IPMN. Ninety-one patients of IPMN that underwent detailed preoperative assessment and pancreatectomy were retrospectively analyzed, focusing especially on the type of recurrence. Results The IPMNs were finally diagnosed as low-grade dysplasia (LDA, n = 42), high-grade dysplasia (HAD, n = 19), and invasive carcinoma (IPMC, n = 30). Recurrence was observed in 26 patients (29%), of which recurrence was seen at Rem-Panc in 19 patients (21%) and Ex-Panc in 7 patients (8%). The frequency of Rem-Panc recurrence was 10% in LDA, 21% in HDA, and 37% in IPMC. On the other hand, Ex-Panc recurrence was observed only in IPMC (23%). Ex-Panc recurrence showed shorter median recurrence-free survival (RFS) and overall survival (OS) than Rem-Panc recurrence (median RFS 8 months vs. 35 months, p < 0.001; median OS 25 months vs. 72 months, p < 0.001). Regarding treatment for Rem-Panc recurrence, repeat pancreatectomy resulted in better OS than no repeat pancreatectomy (MST 36 months vs. 15.5 months, p = 0.033). On multivariate analysis, main duct stenosis or disruption as a preoperative feature (hazard ratio [HR] 10.6, p = 0.002) and positive surgical margin (HR 4.4, p = 0.018) were identified as risk factors for Rem-Panc recurrence. Conclusions The risk factors for Rem-Panc and Ex-Panc recurrence differ. Therefore, optimal surveillance on these features is desirable to ensure that repeat pancreatectomy for Rem-Panc recurrence can be an appropriate surgical intervention.
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spelling doaj.art-ff92af0a469147d1871c00bfa815d7eb2022-12-22T02:21:50ZengBMCBMC Cancer1471-24072022-05-0122111010.1186/s12885-022-09650-wOptimal surveillance of intraductal papillary mucinous neoplasms of the pancreas focusing on remnant pancreas recurrence after surgical resectionTomokazu Fuji0Yuzo Umeda1Kosei Takagi2Ryuichi Yoshida3Kazuhiro Yoshida4Kazuya Yasui5Kazuyuki Matsumoto6Hironari Kato7Takahito Yagi8Toshiyoshi Fujiwara9Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical SciencesDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical SciencesDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical SciencesDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical SciencesDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical SciencesDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical SciencesDepartment of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical SciencesDepartment of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical SciencesDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical SciencesDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical SciencesAbstract Background The international consensus guidelines for intraductal papillary mucinous neoplasm of the pancreas (IPMN) presented clinical features as indications for surgery. Whereas surveillance for recurrence, including de novo lesions, is essential, optimal surveillance protocols have not been established. Aim and methods This study aimed to assess the clinical features of recurrence at the remnant pancreas (Rem-Panc) and extra-pancreas (Ex-Panc) after surgery for IPMN. Ninety-one patients of IPMN that underwent detailed preoperative assessment and pancreatectomy were retrospectively analyzed, focusing especially on the type of recurrence. Results The IPMNs were finally diagnosed as low-grade dysplasia (LDA, n = 42), high-grade dysplasia (HAD, n = 19), and invasive carcinoma (IPMC, n = 30). Recurrence was observed in 26 patients (29%), of which recurrence was seen at Rem-Panc in 19 patients (21%) and Ex-Panc in 7 patients (8%). The frequency of Rem-Panc recurrence was 10% in LDA, 21% in HDA, and 37% in IPMC. On the other hand, Ex-Panc recurrence was observed only in IPMC (23%). Ex-Panc recurrence showed shorter median recurrence-free survival (RFS) and overall survival (OS) than Rem-Panc recurrence (median RFS 8 months vs. 35 months, p < 0.001; median OS 25 months vs. 72 months, p < 0.001). Regarding treatment for Rem-Panc recurrence, repeat pancreatectomy resulted in better OS than no repeat pancreatectomy (MST 36 months vs. 15.5 months, p = 0.033). On multivariate analysis, main duct stenosis or disruption as a preoperative feature (hazard ratio [HR] 10.6, p = 0.002) and positive surgical margin (HR 4.4, p = 0.018) were identified as risk factors for Rem-Panc recurrence. Conclusions The risk factors for Rem-Panc and Ex-Panc recurrence differ. Therefore, optimal surveillance on these features is desirable to ensure that repeat pancreatectomy for Rem-Panc recurrence can be an appropriate surgical intervention.https://doi.org/10.1186/s12885-022-09650-wPancreatic intraductal neoplasmsPancreatectomyRecurrence
spellingShingle Tomokazu Fuji
Yuzo Umeda
Kosei Takagi
Ryuichi Yoshida
Kazuhiro Yoshida
Kazuya Yasui
Kazuyuki Matsumoto
Hironari Kato
Takahito Yagi
Toshiyoshi Fujiwara
Optimal surveillance of intraductal papillary mucinous neoplasms of the pancreas focusing on remnant pancreas recurrence after surgical resection
BMC Cancer
Pancreatic intraductal neoplasms
Pancreatectomy
Recurrence
title Optimal surveillance of intraductal papillary mucinous neoplasms of the pancreas focusing on remnant pancreas recurrence after surgical resection
title_full Optimal surveillance of intraductal papillary mucinous neoplasms of the pancreas focusing on remnant pancreas recurrence after surgical resection
title_fullStr Optimal surveillance of intraductal papillary mucinous neoplasms of the pancreas focusing on remnant pancreas recurrence after surgical resection
title_full_unstemmed Optimal surveillance of intraductal papillary mucinous neoplasms of the pancreas focusing on remnant pancreas recurrence after surgical resection
title_short Optimal surveillance of intraductal papillary mucinous neoplasms of the pancreas focusing on remnant pancreas recurrence after surgical resection
title_sort optimal surveillance of intraductal papillary mucinous neoplasms of the pancreas focusing on remnant pancreas recurrence after surgical resection
topic Pancreatic intraductal neoplasms
Pancreatectomy
Recurrence
url https://doi.org/10.1186/s12885-022-09650-w
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