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What Is the optimal elective colectomy for splenic flexure cancer: End of the debate? A multicenter study from the GRECCAR group with a propensity score analysis

Abstract : BACKGROUND: The optimal elective colectomy in patients with splenic flexure tumor is debated. OBJECTIVE: This study aimed to compare splenic flexure colectomy, left hemicolectomy, and subtotal colectomy for perioperative, histological, and survival outcomes in this setting. DESIGN: This is a multicenter retrospective cohort study. SETTING: Patients diagnosed with nonmetastatic splenic flexure tumor who underwent elective colectomy were included. PATIENTS: Between 2006 and 2014, 313 consecutive patients were operated on in 15 French Research Group of Rectal Cancer Surgery centers. INTERVENTIONS: Propensity score weighting was performed to compare short- and long-term outcomes. MAIN OUTCOME MEASURES: The primary end point was disease-free survival. Secondary end points included overall survival, quality of surgical resection, overall postoperative morbidity, surgical postoperative morbidity, and rate of anastomotic leakage. RESULTS: The most performed surgery was splenic flexure colectomy (59%), followed by subtotal colectomy (23%) and left hemicolectomy (18%). Subtotal colectomy was more often performed by laparotomy compared with splenic flexure colectomy and left hemicolectomy (93% vs 61% vs 56%, p < 0.0001), and was associated with a longer operative time (260 minutes (120–460) vs 180 minutes (68–440) vs 217 minutes (149–480), p < 0.0001). Postoperative morbidity was similar between the 3 groups, but the median length of hospital stay was significantly longer after subtotal colectomy (13 days (5–56) vs 10 (4–175) vs 9 (4–55), p = 0.0007). The median number of harvested lymph nodes was significantly higher after subtotal colectomy compared with splenic flexure colectomy and left hemicolectomy (24 (8–90) vs 15 (1–81) vs 16 (3–52), p < 0.0001). The rate of stage III disease and the number of patients treated by adjuvant chemotherapy were similar between the 3 groups. There was no difference in terms of disease-free survival and overall survival between the 3 procedures. LIMITATIONS: The study was limited by its retrospective design. CONCLUSIONS: In the elective setting, splenic flexure colectomy is safe and oncologically adequate for patients with nonmetastatic splenic flexure tumor. However, given the oncological clearance after splenic flexure colectomy, it seems that the debate is not completely closed.
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https://hal-u-picardie.archives-ouvertes.fr/hal-03638444
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Soumis le : mardi 12 avril 2022 - 11:18:37
Dernière modification le : lundi 25 avril 2022 - 03:18:23

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Gilles Manceau, Arnaud Alves, Hélène Meillat, Léonor Benhaïm, Mehdi Ouaïssi, et al.. What Is the optimal elective colectomy for splenic flexure cancer: End of the debate? A multicenter study from the GRECCAR group with a propensity score analysis. Diseases of the Colon and Rectum, Springer Verlag, 2022, 65 (1), pp.55-65. ⟨10.1097/DCR.0000000000001937⟩. ⟨hal-03638444⟩

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