Impact of Body Mass Index on Surgical and Oncological Outcomes in Laparoscopic Total Mesorectal Excision for Locally Advanced Rectal Cancer after Neoadjuvant 5-Fluorouracil-Based Chemoradiotherapy

Aims. To evaluate the impact of body mass index (BMI) on the surgical outcome of laparoscopic total mesorectal excision (laTME) for locally advanced rectal cancer (LARC, clinically staged as UICC stage II/III) after neoadjuvant chemoradiotherapy (nCRT). Methods. 312 LARC patients undergoing laTME af...

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Main Authors: Yanwu Sun, Pan Chi
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Gastroenterology Research and Practice
Online Access:http://dx.doi.org/10.1155/2017/1509140
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author Yanwu Sun
Pan Chi
author_facet Yanwu Sun
Pan Chi
author_sort Yanwu Sun
collection DOAJ
description Aims. To evaluate the impact of body mass index (BMI) on the surgical outcome of laparoscopic total mesorectal excision (laTME) for locally advanced rectal cancer (LARC, clinically staged as UICC stage II/III) after neoadjuvant chemoradiotherapy (nCRT). Methods. 312 LARC patients undergoing laTME after nCRT were divided into nonobese (BMI < 25.0 kg/m2, n=249) and obese (BMI ≥ 25.0 kg/m2, n=63) groups. Preoperative radiotherapy was delivered in 45–50.4 Gy/25f, 5 days/week, and concurrent chemotherapy using FOLFOX or CapeOX. Technical feasibility, postoperative and oncological outcome were compared between groups. Results. Obese patients had significantly longer operative time (P=0.004). There was no significant difference regarding estimated blood loss, conversion, postoperative recovery, and morbidities. Multivariate analysis demonstrated that higher ASA score and abdominoperineal resection were risk factors for postoperative complications and diverting stoma was a protective factor. The length of resection margin, circumferential resection margin involvement, and number of lymph node retrieved were comparable. With a median follow-up time of 55 months (ranging 20–102 months), oncological outcome was comparable in terms of overall survival, local recurrence, and distant metastasis. Conclusions. Obesity does not affect surgical or oncological outcome of laTME after nCRT. LaTME may be feasible and safe to obese LARC patients after nCRT in a specialized center.
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spelling doaj-art-5cd50d0bf4c0449f9abca2f21839e3af2025-02-03T01:02:36ZengWileyGastroenterology Research and Practice1687-61211687-630X2017-01-01201710.1155/2017/15091401509140Impact of Body Mass Index on Surgical and Oncological Outcomes in Laparoscopic Total Mesorectal Excision for Locally Advanced Rectal Cancer after Neoadjuvant 5-Fluorouracil-Based ChemoradiotherapyYanwu Sun0Pan Chi1Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, ChinaDepartment of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian, ChinaAims. To evaluate the impact of body mass index (BMI) on the surgical outcome of laparoscopic total mesorectal excision (laTME) for locally advanced rectal cancer (LARC, clinically staged as UICC stage II/III) after neoadjuvant chemoradiotherapy (nCRT). Methods. 312 LARC patients undergoing laTME after nCRT were divided into nonobese (BMI < 25.0 kg/m2, n=249) and obese (BMI ≥ 25.0 kg/m2, n=63) groups. Preoperative radiotherapy was delivered in 45–50.4 Gy/25f, 5 days/week, and concurrent chemotherapy using FOLFOX or CapeOX. Technical feasibility, postoperative and oncological outcome were compared between groups. Results. Obese patients had significantly longer operative time (P=0.004). There was no significant difference regarding estimated blood loss, conversion, postoperative recovery, and morbidities. Multivariate analysis demonstrated that higher ASA score and abdominoperineal resection were risk factors for postoperative complications and diverting stoma was a protective factor. The length of resection margin, circumferential resection margin involvement, and number of lymph node retrieved were comparable. With a median follow-up time of 55 months (ranging 20–102 months), oncological outcome was comparable in terms of overall survival, local recurrence, and distant metastasis. Conclusions. Obesity does not affect surgical or oncological outcome of laTME after nCRT. LaTME may be feasible and safe to obese LARC patients after nCRT in a specialized center.http://dx.doi.org/10.1155/2017/1509140
spellingShingle Yanwu Sun
Pan Chi
Impact of Body Mass Index on Surgical and Oncological Outcomes in Laparoscopic Total Mesorectal Excision for Locally Advanced Rectal Cancer after Neoadjuvant 5-Fluorouracil-Based Chemoradiotherapy
Gastroenterology Research and Practice
title Impact of Body Mass Index on Surgical and Oncological Outcomes in Laparoscopic Total Mesorectal Excision for Locally Advanced Rectal Cancer after Neoadjuvant 5-Fluorouracil-Based Chemoradiotherapy
title_full Impact of Body Mass Index on Surgical and Oncological Outcomes in Laparoscopic Total Mesorectal Excision for Locally Advanced Rectal Cancer after Neoadjuvant 5-Fluorouracil-Based Chemoradiotherapy
title_fullStr Impact of Body Mass Index on Surgical and Oncological Outcomes in Laparoscopic Total Mesorectal Excision for Locally Advanced Rectal Cancer after Neoadjuvant 5-Fluorouracil-Based Chemoradiotherapy
title_full_unstemmed Impact of Body Mass Index on Surgical and Oncological Outcomes in Laparoscopic Total Mesorectal Excision for Locally Advanced Rectal Cancer after Neoadjuvant 5-Fluorouracil-Based Chemoradiotherapy
title_short Impact of Body Mass Index on Surgical and Oncological Outcomes in Laparoscopic Total Mesorectal Excision for Locally Advanced Rectal Cancer after Neoadjuvant 5-Fluorouracil-Based Chemoradiotherapy
title_sort impact of body mass index on surgical and oncological outcomes in laparoscopic total mesorectal excision for locally advanced rectal cancer after neoadjuvant 5 fluorouracil based chemoradiotherapy
url http://dx.doi.org/10.1155/2017/1509140
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AT panchi impactofbodymassindexonsurgicalandoncologicaloutcomesinlaparoscopictotalmesorectalexcisionforlocallyadvancedrectalcancerafterneoadjuvant5fluorouracilbasedchemoradiotherapy