Evidence map›Paper›PMID 42120654›Full record

ArticleTechniques in coloproctology2026

Short- and long-term outcomes of minimally invasive total mesorectal excision in obese versus nonobese patients with rectal cancer: a propensity score matched study.

G-Y Chen, K-Y Tsai, C-K Liao, J-F You, C-C Lai, S-H Huang

Abstract readComparative Study

In one paragraph

Article in Techniques in coloproctology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

G-Y ChenDepartment of Surgery, Chang Gung Memorial Hospital, Linkou, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan.ORCID http://orcid.org/0009-0009-2614-4751

K-Y TsaiSchool of Medicine, Chang Gung University, No. 259, Wenhua 1st Road, Guishan Dist., Taoyuan, 333, Taiwan.ORCID http://orcid.org/0000-0002-1856-9663

C-K LiaoDivision of Colon and Rectal Surgery, Department of Surgery, Chang Gung Memorial Hospital, Linkou, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan.ORCID http://orcid.org/0000-0002-7497-4444

J-F YouDivision of Colon and Rectal Surgery, Department of Surgery, Chang Gung Memorial Hospital, Linkou, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan.ORCID http://orcid.org/0000-0001-5748-1659

C-C LaiDivision of Colon and Rectal Surgery, Department of Surgery, Chang Gung Memorial Hospital, Linkou, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan.ORCID http://orcid.org/0000-0003-4819-2104

S-H HuangDivision of Colon and Rectal Surgery, Department of Surgery, Chang Gung Memorial Hospital, Linkou, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan. shhuang55@gmail.com.ORCID http://orcid.org/0000-0003-2673-9850

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundObesity adds technical complexity to colorectal surgery and has been linked to higher rates of perioperative complications and poorer long-term outcomes. Its prevalence is increasing among patients undergoing minimally invasive total mesorectal excision for rectal cancer; however, its impact on perioperative and oncologic outcomes remains controversial. Therefore, the aim of this study was to compare short- and long-term outcomes between obese (body mass index (BMI) ≥ 27 kg/m

methodsRetrospective review of patients with rectal cancer undergoing laparoscopic, robotic, or transanal total mesorectal excision (TME) between January 2015 and December 2022. Propensity score matching (1:1) was performed on baseline characteristics. Primary outcomes included perioperative parameters, postoperative complications, and long-term oncologic outcomes.

resultsAfter matching, 142 patients were included in each group. Obesity was associated with higher conversion rates to open surgery (2.8% versus 0%, p = 0.044) and increased overall complications (40.1% versus 28.9%, p = 0.046), driven mainly by surgical wound infections (9.2% versus 1.4%, p = 0.004). No differences were observed in major complications, anastomotic leakage, hospital stay, margin status, or 5-year overall (88% versus 89.4%, p = 0.409) and disease-free (62.7% versus 72.5%, p = 0.653) survival.

conclusionsObesity increased conversion and minor complication rates but did not adversely affect short-term outcomes or long-term oncologic outcomes after minimally invasive TME procedures. Tailored perioperative strategies may mitigate obesity-associated risks.

trial registrationNot applicable.

Indexed as

LaparoscopyMinimally Invasive Surgical ProceduresObesityPostoperative ComplicationsProctectomyRectal NeoplasmsAgedBody Mass IndexConversion to Open SurgeryFemaleHumansMaleMiddle AgedPropensity ScoreRetrospective StudiesRobotic Surgical ProceduresMinimally invasive surgeryObesityRectal cancerRetrospective studyTotal mesorectal excision

Identifiers

PMID42120654

DOI10.1007/s10151-026-03292-x

PMCPMC13337685

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