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Published in: Surgical Endoscopy 3/2020

Open Access 01-03-2020 | Rectal Cancer

Laparoscopic and open surgery in rectal cancer patients in Germany: short and long-term results of a large 10-year population-based cohort

Authors: Valentin Schnitzbauer, Michael Gerken, Stefan Benz, Vinzenz Völkel, Teresa Draeger, Alois Fürst, Monika Klinkhammer-Schalke

Published in: Surgical Endoscopy | Issue 3/2020

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Abstract

Background

Rectal cancer is frequent in Germany and worldwide. Several studies have assessed laparoscopic surgery as a treatment option and most have shown favorable results. However, long-term oncologic safety remains a controversial issue.

Methods

The current dataset derives from 30 clinical cancer registries in Germany and includes 16,378 patients diagnosed with rectal cancer between 2007 and 2016. Outcomes were 90-day mortality, overall survival (OS), local recurrence-free survival (RFS) and relative survival of patients treated with either open or laparoscopic surgery. Multivariable logistic regression was used to evaluate factors that affected the probability of a patient undergoing laparoscopic surgery as well as to evaluate short-term mortality. OS and RFS were analyzed by Kaplan–Meier plots and multivariable Cox regression conducted separately for UICC stages I–III, tumor location, and sex as well as by propensity score matching followed by univariable and multivariable survival analysis.

Results

Of 16,378 patients, 4540 (27.7%) underwent laparoscopic surgery, a trend which increased during the observation period. Patients undergoing laparoscopy attained better results for 90-day mortality (odds ratio, OR 0.658, 95% confidence interval, CI 0.526–0.822). The 5-year OS rate in the laparoscopic group was 82.6%, vs. 76.6% in the open surgery group, with a hazard ratio (HR) of 0.819 in multivariable Cox regression (95% CI 0.747–0.899, p < 0.001). The laparoscopic group showed a better 5-year RFS, with 81.8 vs. 74.3% and HR 0.770 (95% CI 0.705–0.842, p < 0.001). The 5-year relative survival rates were also in favor of laparoscopy, with 93.1 vs. 88.4% (p = 0.012).

Conclusion

Laparoscopic surgery for rectal cancer can be performed safely and, according to this study, is associated with an oncological outcome superior to that of the open procedure. Therefore, in the absence of individual contraindications, it should be considered as a standard approach.
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Metadata
Title
Laparoscopic and open surgery in rectal cancer patients in Germany: short and long-term results of a large 10-year population-based cohort
Authors
Valentin Schnitzbauer
Michael Gerken
Stefan Benz
Vinzenz Völkel
Teresa Draeger
Alois Fürst
Monika Klinkhammer-Schalke
Publication date
01-03-2020
Publisher
Springer US
Published in
Surgical Endoscopy / Issue 3/2020
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI
https://doi.org/10.1007/s00464-019-06861-4

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