RT Journal Article SR Electronic T1 The Prognostic Relevance of Preoperative CEA and CA19-9 for Ampulla of Vater Carcinoma JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 3169 OP 3176 DO 10.21873/anticanres.15806 VO 42 IS 6 A1 SATOSHI MATSUI A1 YUSUKE YAMAMOTO A1 YUKIYASU OKAMURA A1 TAKAAKI ITO A1 RYO ASHIDA A1 KATSUHISA OHGI A1 MIHOKO YAMADA A1 SHIMPEI OTSUKA A1 KATSUHIKO UESAKA A1 TEIICHI SUGIURA YR 2022 UL http://ar.iiarjournals.org/content/42/6/3169.abstract AB Background/Aim: Increased serum levels of carcinoembryonic antigen (CEA) and carbohydrate antigen 199 (CA19-9) are established prognostic factors in ampulla of Vater carcinoma (AC). We determined the best cut-off values of preoperative CEA and CA19-9 and compared the prognostic power of preoperative CEA with that of preoperative CA19-9 for overall survival (OS). Patients and Methods: A total of 116 consecutive patients without jaundice who underwent macroscopic curative resection for AC between January 2002 and August 2019 were enrolled. Results: Using the minimum p-value approach based on the OS, the optimal CEA cut-off value was found to be 6.5 ng/ml; however, the cut-off value of CA19-9 could not be determined, as no significant p value was identified. The OS of the patients with CEA >6.5 ng/ml (n=5; 3-year OS, 20.0%) was significantly worse than that with CEA ≤6.5 ng/ml (n=111; 3-year OS, 76.6%; p<0.001). A Cox proportional hazards analysis for OS revealed CEA >6.5 ng/ml (hazard ratio=4.01, p=0.019) to be an independent prognostic factor. Conclusion: In patients with AC, although the CA19-9 optimal cut-off value could not be determined, CEA >6.5 ng/ml independently affected long-term survival after resection.