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World Journal of Surgical Oncology
Published in: World Journal of Surgical Oncology 1/2019

Open Access 01-12-2019 | Gastrectomy | Review

Postoperative complications and prognosis after radical gastrectomy for gastric cancer: a systematic review and meta-analysis of observational studies

Authors: Shiqi Wang, Lei Xu, Quan Wang, Jipeng Li, Bin Bai, Zhengyan Li, Xiaoyong Wu, Pengfei Yu, Xuzhao Li, Jichao Yin

Published in: World Journal of Surgical Oncology | Issue 1/2019

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Abstract

Background

Many observational studies have reported correlations between postoperative complications and prognosis after radical gastrectomy but the results are controversial. This meta-analysis was performed to investigate whether there is a correlation between postoperative complications and prognosis after radical gastrectomy.

Methods

Literature searches were performed in PubMed, EMBASE, and the Cochrane Library. Studies that investigated the correlations between any postoperative complications and prognosis after radical gastrectomy were included. The pooled hazard ratio (HR) with 95% confidence interval (CI) for postoperative complications regarding overall survival (OS) or recurrence-free survival (RFS) was calculated by using RevMan 5.3.5. Subgroup analyses were performed within pathological stages I, II, and III.

Results

Sixteen retrospective studies comprising 12,065 patients were included. The pooled HR (95% CI) for complications regarding OS was 1.79 (1.39, 2.30) and was 1.40 (1.06, 1.84) after excluding in-hospital mortality; the pooled HR (95% CI) for complications regarding RFS was 1.28 (1.10, 1.49). The pooled HR (95% CI) for infectious complications and leakage regarding OS was 1.86 (1.22, 2.83) and 2.02 (1.02, 4.00), respectively. The pooled HR (95% CI) for any reported postoperative complications regarding OS for stage I, II, and III diseases was 2.39 (0.77, 7.46), 4.35 (2.58, 7.35), and 2.84 (1.77, 4.56), respectively.

Conclusions

Postoperative complications correlate with poor prognosis after radical gastrectomy. Such correlations are found in stage II and III gastric cancer patients but remain to be determined in stage I gastric cancer patients.
Appendix
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Metadata
Title
Postoperative complications and prognosis after radical gastrectomy for gastric cancer: a systematic review and meta-analysis of observational studies
Authors
Shiqi Wang
Lei Xu
Quan Wang
Jipeng Li
Bin Bai
Zhengyan Li
Xiaoyong Wu
Pengfei Yu
Xuzhao Li
Jichao Yin
Publication date
01-12-2019
Publisher
BioMed Central
Published in
World Journal of Surgical Oncology / Issue 1/2019
Electronic ISSN: 1477-7819
DOI
https://doi.org/10.1186/s12957-019-1593-9

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