TY - JOUR T1 - Cancer antigen-125 and risk of atrial fibrillation: a systematic review and meta-analysis JF - Heart Asia DO - 10.1136/heartasia-2017-010970 VL - 10 IS - 1 SP - e010970 AU - Angel Cheung AU - Mengqi Gong AU - Roberto Bellanti AU - Sadeq Ali-Hasan-Al-Saegh AU - Guangping Li AU - Eulàlia Roig AU - Julio Núñez AU - Thomas D Stamos AU - Mehmet Birhan Yilmaz AU - Kaya Hakki AU - William K K Wu AU - Sunny Hei Wong AU - Wing Tak Wong AU - George Bazoukis AU - Konstantinos Lampropoulos AU - Lah Ah Tse AU - Jichao Zhao AU - Gregory Y H Lip AU - Adrian Baranchuk AU - Martin C S Wong AU - Tong Liu AU - Gary Tse A2 - , Y1 - 2018/01/01 UR - http://heartasia.bmj.com/content/10/1/e010970.abstract N2 - Background Cancer antigen-125 (Ca-125) is traditionally recognised as a tumour marker and its role in cardiovascular diseases has been studied only in recent years. Whether Ca-125 is elevated in patients with atrial fibrillation (AF) and its levels predict the risk of AF remains controversial. Therefore, we conducted a systematic review and meta-analysis of the association between Ca-125 levels and AF.Methods PubMed and EMBASE databases were searched until 1 June 2017 for studies that evaluated the association between Ca-125 and AF. Inclusion criteria included studies that compare Ca-125 in patients with and without AF, or those reporting HRs/ORs for risk of AF stratified by Ca-125 levels.Results A total of 39 entries were retrieved from the databases, of which 10 studies were included in the final meta-analysis. Ca-125 was significantly higher in patients with AF compared with those in sinus rhythm (mean difference=16 U/mL, 95% CI 2 to 30 U/mL, P<0.05; I2: 98%). Ca-125 significantly increased the risk of AF (HR: 1.39, 95% CI 1.06 to 1.82, P<0.05; I2: 84%).Conclusion Ca-125 was significantly higher in patients with AF than in those in sinus rhythm, and high Ca-125 is predictive of AF occurrence. However, the high heterogeneity observed means there is an uncertainty in the relationship between Ca-125 and AF, which needs to be confirmed by larger prospective studies. ER -