Mathilde Aubert1, Diane Mege1, Gilles Manceau2, Valérie Bridoux3, Zaher Lakkis4, Aurélien Venara5, Thibault Voron6, Solafah Abdalla7, Laura Beyer-Berjot8, Igor Sielezneff1, Charles Sabbagh9, Mehdi Karoui10. 1. Department of Digestive Surgery, Timone University Hospital, Assistance Publique-Hôpitaux de Marseille, Marseille, France. 2. Department of Digestive Surgery, Pitié Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, Sorbonne Université, Paris, France. 3. Department of Digestive Surgery, Charles Nicolle University Hospital, Rouen, France. 4. Department of Digestive Surgery, Besançon University Hospital, Besançon, France. 5. Department of Digestive Surgery, Angers University Hospital, Angers, France. 6. Department of Digestive Surgery, Saint-Antoine University Hospital, Assistance Publique-Hôpitaux de Paris, Sorbonne Université, Paris, France. 7. Department of Digestive Surgery, Bicêtre University Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris-Sud, Le Kremlin Bicêtre, France. 8. Department of Digestive Surgery, North University Hospital, Assistance Publique Hôpitaux de Marseille, Marseille, France. 9. Department of Digestive Surgery, Amiens University Hospital, Amiens, France. 10. Department of Digestive Surgery, Pitié Salpêtrière University Hospital, Assistance Publique-Hôpitaux de Paris, Sorbonne Université, Paris, France. mehdi.karoui@aphp.fr.
Abstract
PURPOSE: Volume-outcome relationship is well established in elective colorectal surgery for cancer, but little is known for patients managed for obstructive colon cancer (OCC). We aimed to compare the management and outcomes according to the hospital volume in this particular setting. METHODS: Patients managed for OCC between 2005 and 2015 in centers of the French National Surgical Association were retrospectively analyzed. Hospital volume was dichotomized between low and high volume on the median number of patients included per center during the study period. RESULTS: A total of 1957 patients with OCC were managed in 56 centers with a median number of 28 (1-123) patients per center: 298 (15%) were treated in low-volume hospitals (LVHs) and 1659 (85%) in high-volume hospitals (HVHs). Patients in LVH were significantly younger, and had fewer comorbidities and synchronous metastases. Proximal diverting stoma was the preferred surgical option in LVH (p < 0.0001), whereas tumor resection with primary anastomosis was more frequently performed in HVH (p < 0.0001). Cumulative morbidity (59 vs. 50%, p = 0.003), mortality (13 vs. 8%, p = 0.03), and length of hospital stay (22 ± 19 vs. 18 ± 14 days, p = 0.002) were significantly higher in LVH. At multivariate analysis, LVH was a predictor for cumulative morbidity (p < 0.0001) and mortality (p = 0.03). There was no difference between the two groups for tumor resection and stoma rates, and for oncological outcomes. CONCLUSIONS: The hospital volume has no impact on outcomes after the first-stage surgery in OCC patients. When all surgical stages are considered, hospital volume influences cumulative postoperative morbidity and mortality but has no impact on oncological outcomes.
PURPOSE: Volume-outcome relationship is well established in elective colorectal surgery for cancer, but little is known for patients managed for obstructive colon cancer (OCC). We aimed to compare the management and outcomes according to the hospital volume in this particular setting. METHODS:Patients managed for OCC between 2005 and 2015 in centers of the French National Surgical Association were retrospectively analyzed. Hospital volume was dichotomized between low and high volume on the median number of patients included per center during the study period. RESULTS: A total of 1957 patients with OCC were managed in 56 centers with a median number of 28 (1-123) patients per center: 298 (15%) were treated in low-volume hospitals (LVHs) and 1659 (85%) in high-volume hospitals (HVHs). Patients in LVH were significantly younger, and had fewer comorbidities and synchronous metastases. Proximal diverting stoma was the preferred surgical option in LVH (p < 0.0001), whereas tumor resection with primary anastomosis was more frequently performed in HVH (p < 0.0001). Cumulative morbidity (59 vs. 50%, p = 0.003), mortality (13 vs. 8%, p = 0.03), and length of hospital stay (22 ± 19 vs. 18 ± 14 days, p = 0.002) were significantly higher in LVH. At multivariate analysis, LVH was a predictor for cumulative morbidity (p < 0.0001) and mortality (p = 0.03). There was no difference between the two groups for tumor resection and stoma rates, and for oncological outcomes. CONCLUSIONS: The hospital volume has no impact on outcomes after the first-stage surgery in OCC patients. When all surgical stages are considered, hospital volume influences cumulative postoperative morbidity and mortality but has no impact on oncological outcomes.
Entities:
Keywords:
Emergency surgery; National database; Obstructive colon cancer; Volume
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