» Articles » PMID: 39230922

Risk of Metachronous Neoplasia in Early-onset Colorectal Cancer: Meta-analysis

Overview
Journal BJS Open
Specialty General Surgery
Date 2024 Sep 4
PMID 39230922
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Metachronous colorectal cancer refers to patients developing a second colorectal neoplasia diagnosed at least 6 months after the initial cancer diagnosis, excluding recurrence. The aim of this systematic review is to assess the incidence of metachronous colorectal cancer in early-onset colorectal cancer (defined as age at diagnosis of less than 50 years) and to identify risk factors.

Methods: This is a systematic review and meta-analysis performed following the PRISMA statement and registered on PROSPERO. The literature search was conducted in PubMed and Embase. Only studies involving patients with early-onset colorectal cancer (less than 50 years old) providing data on metachronous colorectal cancer were included in the analysis. The primary endpoint was the risk of metachronous colorectal cancer in patients with early-onset colorectal cancer. Secondary endpoints were association with Lynch syndrome, family history and microsatellite instability.

Results: Sixteen studies met the inclusion criteria. The incidence of metachronous colorectal cancer was 2.6% (95% c.i. 2.287-3.007). The risk of developing metachronous colorectal cancer in early-onset colorectal cancer versus non-early-onset colorectal cancer patients demonstrated an OR of 0.93 (95% c.i. 0.760-1.141). The incidence of metachronous colorectal cancer in patients with Lynch syndrome was 18.43% (95% c.i. 15.396-21.780), and in patients with family history 10.52% (95% c.i. 5.555-17.659). The proportion of metachronous colorectal cancer tumours in the microsatellite instability population was 19.7% (95% c.i. 13.583-27.2422).

Conclusion: The risk of metachronous colorectal cancer in patients with early-onset colorectal cancer is comparable to those with advanced age, but it is higher in patients with Lynch syndrome, family history and microsatellite instability. This meta-analysis demonstrates the need to personalize the management of patients with early-onset colorectal cancer according to their risk factors.

References
1.
Toh J, Hui N, Collins G, Phan K . Survival outcomes associated with Lynch syndrome colorectal cancer and metachronous rate after subtotal/total versus segmental colectomy: Meta-analysis. Surgery. 2022; 172(5):1315-1322. DOI: 10.1016/j.surg.2022.06.013. View

2.
Klos C, Montenegro G, Jamal N, Wise P, Fleshman J, Safar B . Segmental versus extended resection for sporadic colorectal cancer in young patients. J Surg Oncol. 2014; 110(3):328-32. DOI: 10.1002/jso.23649. View

3.
Fitzmaurice C, Allen C, Barber R, Barregard L, Bhutta Z, Brenner H . Global, Regional, and National Cancer Incidence, Mortality, Years of Life Lost, Years Lived With Disability, and Disability-Adjusted Life-years for 32 Cancer Groups, 1990 to 2015: A Systematic Analysis for the Global Burden of Disease Study. JAMA Oncol. 2016; 3(4):524-548. PMC: 6103527. DOI: 10.1001/jamaoncol.2016.5688. View

4.
Win A, Parry S, Parry B, Kalady M, Macrae F, Ahnen D . Risk of metachronous colon cancer following surgery for rectal cancer in mismatch repair gene mutation carriers. Ann Surg Oncol. 2013; 20(6):1829-36. PMC: 4041733. DOI: 10.1245/s10434-012-2858-5. View

5.
Provenzale D, Gupta S, Ahnen D, Markowitz A, Chung D, Mayer R . NCCN Guidelines Insights: Colorectal Cancer Screening, Version 1.2018. J Natl Compr Canc Netw. 2018; 16(8):939-949. DOI: 10.6004/jnccn.2018.0067. View