Volume 23, Issue 11 pp. 2846-2858
META-ANALYSIS

Risk factors for developing peritoneal metastases after curative surgery for colorectal cancer: A systematic review and meta-analysis

Yuanxin Zhang

Yuanxin Zhang

Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

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Xiusen Qin

Xiusen Qin

Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

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Wenle Chen

Wenle Chen

Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

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Duo Liu

Duo Liu

Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

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Jian Luo

Jian Luo

Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

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Huaiming Wang

Corresponding Author

Huaiming Wang

Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

Correspondence

Huaiming Wang and Hui Wang, Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China.

Email: [email protected] (Huaiming Wang); [email protected] (Hui Wang)

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Hui Wang

Corresponding Author

Hui Wang

Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

Correspondence

Huaiming Wang and Hui Wang, Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China.

Email: [email protected] (Huaiming Wang); [email protected] (Hui Wang)

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First published: 19 August 2021
Citations: 4

Yuanxin Zhang and Xiusen Qin contributed equally to this work.

Abstract

Aim

Proactive detection and treatment strategies have achieved encouraging survival outcomes for patients with early peritoneal metastases (PM), but these costly and invasive approaches can only be applied to selected high-risk patients. This meta-analysis aimed to identify the risk factors for metachronous PM after curative surgery for colorectal cancer (CRC).

Method

The study was registered at PROSPERO (CRD42020219187). Databases were searched for studies comparing clinical and histopathological characteristics between patients with metachronous peritoneal metastases from colorectal cancer (pmCRC) and patients without (non-pmCRC).

Results

Thirty-six studies were included. Metachronous PM were positively associated with perforation (OR 1.920; 95% CI 1.144–3.223; P = 0.014), poor differentiation (OR 2.291; 1.603–3.275; P < 0.001), T4 (OR 2.897; 1.248–6.726; P = 0.013), N1–2 (OR 3.429; 2.684–4.381; P < 0.001), mucinous adenocarcinoma (OR 4.175; 1.798–9.692; P = 0.001), obstruction (OR 4.467; 1.919–10.398; P = 0.001), synchronous ovarian metastases (OR 5.005; 1.140–21.977; P = 0.033), positive peritoneal carcinoembryonic antigen mRNA (OR 9.472; 3.643–24.631; P < 0.001), elevated serum carcinoembryonic antigen (preoperative group, OR 3.545, 1.486–8.459, P = 0.004; postoperative group, OR 13.673, 2.222–84.129, P = 0.005), elevated serum cancer antigen 19-9 (preoperative group, OR 5.281, 2.146–12.994, P < 0.001; postoperative group, OR 18.646, 6.429–54.083, P < 0.001) and positive peritoneal cytology (OR 25.884; 11.372–58.913; P < 0.001).

Conclusion

These evidence-based risk factors are conducive to designing early detection and proactive treatment strategies, enabling precision medicine.

CONFLICT OF INTEREST

None to disclose.

DATA AVAILABILITY STATEMENT

The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.