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International Journal of Surgical Oncology
Volume 2015, Article ID 464570, 10 pages
http://dx.doi.org/10.1155/2015/464570
Research Article

Influence of Individual Surgeon Volume on Oncological Outcome of Colorectal Cancer Surgery

1Department of Surgery, Alrijne Hospital, Location Leiderdorp, Simon Smitweg 1, 2353 GA Leiderdorp, Netherlands
2Department of Surgery, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, Netherlands

Received 28 April 2015; Accepted 10 August 2015

Academic Editor: Timothy M. Pawlik

Copyright © 2015 Marleen Buurma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. Surgery performed by a high-volume surgeon improves short-term outcomes. However, not much is known about long-term effects. Therefore we performed the current study to evaluate the impact of high-volume colorectal surgeons on survival. Methods. We conducted a retrospective analysis of our prospectively collected colorectal cancer database between 2004 and 2011. Patients were divided into two groups: operated on by a high-volume surgeon (>25 cases/year) or by a low-volume surgeon (<25 cases/year). Perioperative data were collected as well as follow-up, recurrence rates, and survival data. Results. 774 patients underwent resection for colorectal malignancies. Thirteen low-volume surgeons operated on 453 patients and 4 high-volume surgeons operated on 321 patients. Groups showed an equal distribution for preoperative characteristics, except a higher ASA-classification in the low-volume group. A high-volume surgeon proved to be an independent prognostic factor for disease-free survival in the multivariate analysis . Although overall survival did show a significant difference in the univariate analysis it failed to reach statistical significance in the multivariate analysis . Conclusions. In our study, a higher number of colorectal cases performed per surgeon were associated with longer disease-free survival. Implementing high-volume surgery results in improved long-term outcome following colorectal cancer.