Jinghua Tang , Leen Liao , Binyi Xiao , Qiaoqi Sui , Muxu Zheng, Wu Jiang, Kai Han, Lingheng Kong, Zhizhong Pan, Peirong Ding
{"title":"Efficacy and safety of subtotal pelvic peritonectomy for colorectal cancer patients with peritoneal metastasis confined to the pelvic cavity","authors":"Jinghua Tang , Leen Liao , Binyi Xiao , Qiaoqi Sui , Muxu Zheng, Wu Jiang, Kai Han, Lingheng Kong, Zhizhong Pan, Peirong Ding","doi":"10.1016/j.ejso.2025.109703","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Cytoreductive surgery has shown survival benefits for colorectal cancer (CRC) patients with peritoneal metastasis. However, the optimal extent of peritonectomy remains controversial in cases of limited peritoneal metastases. This study modified selective pelvic peritonectomy (SPP) into subtotal pelvic peritonectomy (STPP) for metastasis confined to pelvic cavity, and aimed to evaluate its feasibility, safety, and impact on survival outcomes.</div></div><div><h3>Materials and methods</h3><div>CRC patients with limited peritoneal metastasis confined to the pelvic cavity who underwent CC0 (no macroscopic residual cancer remained) resection were included from a prospectively collected database. Surgical complications, disease-free survival (DFS), and overall survival (OS) were analyzed.</div></div><div><h3>Results</h3><div>A total of 67 patients were included (26 in the STPP group and 41 in the SPP group). Clinically, STPP was found to be feasible and without increased surgical complications or mortality rates. At a median follow-up of 33.9 months, the 3-year DFS was 65.9 % and 30.7 % in STPP and SPP groups, respectively (<em>P</em> <em>=</em> 0.002). The 3-year OS was 84.1 % and 68.5 % in STPP and SPP groups, respectively (<em>P</em> <em>=</em> 0.006). Moreover, STTP was independently associated with improved DFS (<em>HR</em> = 0.351, 95 % <em>CI</em> 0.165–0.745, <em>P</em> <em>=</em> 0.006) and OS (<em>HR</em> = 0.324, 95 % <em>CI</em> 0.116–0.902, <em>P=</em>0.032). Female gender was also independently associated with poor DFS (<em>HR</em> = 2.146, 95 % <em>CI</em> 1.078–4.271, <em>P</em> <em>=</em> 0.031). Among 24 female patients with remaining ovaries, 9 (37.5 %) cases developed metachronous ovarian metastasis, and of these 6 underwent a second operation.</div></div><div><h3>Conclusions</h3><div>Subtotal pelvic peritonectomy is associated with promising long-term outcomes in CRC patients with peritoneal metastasis confined to the pelvic cavity. Prophylactic bilateral oophorectomy should be strongly considered during cytoreductive surgery.</div></div>","PeriodicalId":11522,"journal":{"name":"Ejso","volume":"51 5","pages":"Article 109703"},"PeriodicalIF":3.5000,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ejso","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0748798325001313","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ONCOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Cytoreductive surgery has shown survival benefits for colorectal cancer (CRC) patients with peritoneal metastasis. However, the optimal extent of peritonectomy remains controversial in cases of limited peritoneal metastases. This study modified selective pelvic peritonectomy (SPP) into subtotal pelvic peritonectomy (STPP) for metastasis confined to pelvic cavity, and aimed to evaluate its feasibility, safety, and impact on survival outcomes.
Materials and methods
CRC patients with limited peritoneal metastasis confined to the pelvic cavity who underwent CC0 (no macroscopic residual cancer remained) resection were included from a prospectively collected database. Surgical complications, disease-free survival (DFS), and overall survival (OS) were analyzed.
Results
A total of 67 patients were included (26 in the STPP group and 41 in the SPP group). Clinically, STPP was found to be feasible and without increased surgical complications or mortality rates. At a median follow-up of 33.9 months, the 3-year DFS was 65.9 % and 30.7 % in STPP and SPP groups, respectively (P= 0.002). The 3-year OS was 84.1 % and 68.5 % in STPP and SPP groups, respectively (P= 0.006). Moreover, STTP was independently associated with improved DFS (HR = 0.351, 95 % CI 0.165–0.745, P= 0.006) and OS (HR = 0.324, 95 % CI 0.116–0.902, P=0.032). Female gender was also independently associated with poor DFS (HR = 2.146, 95 % CI 1.078–4.271, P= 0.031). Among 24 female patients with remaining ovaries, 9 (37.5 %) cases developed metachronous ovarian metastasis, and of these 6 underwent a second operation.
Conclusions
Subtotal pelvic peritonectomy is associated with promising long-term outcomes in CRC patients with peritoneal metastasis confined to the pelvic cavity. Prophylactic bilateral oophorectomy should be strongly considered during cytoreductive surgery.
期刊介绍:
JSO - European Journal of Surgical Oncology ("the Journal of Cancer Surgery") is the Official Journal of the European Society of Surgical Oncology and BASO ~ the Association for Cancer Surgery.
The EJSO aims to advance surgical oncology research and practice through the publication of original research articles, review articles, editorials, debates and correspondence.