Impact of Preoperative CT-Measured Sarcopenia on Clinical, Pathological, and Oncological Outcomes After Elective Rectal Cancer Surgery.

IF 3 3区 医学 Q1 MEDICINE, GENERAL & INTERNAL Diagnostics Pub Date : 2025-03-05 DOI:10.3390/diagnostics15050629
David Martin, Mathilde Billy, Fabio Becce, Damien Maier, Michael Schneider, Clarisse Dromain, Dieter Hahnloser, Martin Hübner, Fabian Grass
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引用次数: 0

Abstract

Background: Patients with rectal cancer may be exposed to a loss of muscle strength and quality. This study aimed to assess the role of preoperative CT-based sarcopenia on postoperative clinical, pathological, and oncological outcomes after rectal cancer surgery. Methods: This retrospective monocentric study included patients who underwent elective oncologic resection for rectal adenocarcinoma between 01/2014 and 03/2022. The skeletal muscle index (SMI) was measured using CT at the third lumbar vertebral level, and sarcopenia was defined based on pre-established sex-specific cut-offs. Patients with sarcopenia were compared to those without sarcopenia in terms of outcomes. A Cox proportional hazard regression analysis was used to determine the independent prognostic factors of disease-free survival (DFS) and overall survival (OS). Results: A total of 208 patients were included, and 123 (59%) had preoperative sarcopenia. Patients with sarcopenia were significantly older (66 vs. 61 years, p = 0.003), had lower BMI (24 vs. 28 kg/m2, p < 0.001), and were mainly men (76 vs. 48%, p < 0.001). There was no difference in overall and major complication rates between the sarcopenia and non-sarcopenia group (43 vs. 37%, p = 0.389, and 17 vs. 17%, p = 1.000, respectively). Preoperative and postoperative features related to rectal surgery were comparable. The only predictive factor impacting OS was R1/R2 resection (HR 4.915, 95% CI, 1.141-11.282, p < 0.001), while sarcopenia (HR 2.013, 95% CI 0.972-4.173, p = 0.050) and T3/T4 status (HR 2.108, 95% CI 1.058-4.203, p = 0.034) were independently associated with DFS. Conclusions: A majority of patients undergoing rectal cancer surgery had preoperative CT-based sarcopenia. In this cohort, sarcopenia had no impact on postoperative morbidity and OS but was independently associated with DFS.

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来源期刊
Diagnostics
Diagnostics Biochemistry, Genetics and Molecular Biology-Clinical Biochemistry
CiteScore
4.70
自引率
8.30%
发文量
2699
审稿时长
19.64 days
期刊介绍: Diagnostics (ISSN 2075-4418) is an international scholarly open access journal on medical diagnostics. It publishes original research articles, reviews, communications and short notes on the research and development of medical diagnostics. There is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental and/or methodological details must be provided for research articles.
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