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Clinical Usefulness of Preoperative and Postoperative CA-19-9 Antigen in Pancreatic and Bile Duct Neoplasms
Journal of the Korean Surgical Society ; : 145-149, 2003.
Article in Korean | WPRIM | ID: wpr-151133
ABSTRACT

PURPOSE:

The CA-19-9 antigen is a commonly used tumor marker for pancreatic and bile duct neoplasms. It is well known that the CA-19-9 antigen is a good predictor of resectability, prognosis and recurrence. The aim of this study was to evaluate the efficacy of the CA-19-9 antigen as preoperative resectability and postoperative recurrence markers in pancreatic and bile duct neoplasms.

METHODS:

Between February 1995 and June 2001, 234 patients, with pancreatic and bile duct neoplasms, at the Department of Surgery, Samsung Medical Center, were followed up with the CA-19-9 antigen, both preoperatively and postoperatively. The ROC curve was used to analyze the relationship between a radical resection and the preoperative CA-19-9 antigen. During the postoperative follow- up, 124 patients that had radical resections, and postoperative follow-up for the CA-19-9 antigen, were studied for this relationship using Chi-square tests.

RESULTS:

The cut-off values in the pancreatic (P=0.527) and bile duct (P=0.688) neoplasms were 325.50 U/ml and 58.35 U/ml, respectively, using the ROC curve for the relationship between a radical resection and the preoperative CA-19-9 antigen, although the result was statistically insignificant. From the 124 patients used for the statistical analysis, 64 had a recurrence, of which 57 showed an increase in the CA-19-9 antigen, with the 7 showing no elevation. 60 patients had no recurrence, of which 28 showed an increase in the CA-19-9 antigen. The elevation of the CA-19-9 antigen was analyzed between the recurrence and no recurrence groups using Chi-square tests, which revealed a statistical significance (P<0.001).

CONCLUSION:

In patients with pancreatic and bile duct neoplasms, the CA-19-9 antigen could not predict the preoperatie resectability, but was a clinically effective follow-up marker for a recurrence.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Pancreatic Neoplasms / Prognosis / Recurrence / Bile Duct Neoplasms / Bile Ducts / ROC Curve / Follow-Up Studies / CA-19-9 Antigen Type of study: Observational study / Prognostic study Limits: Humans Language: Korean Journal: Journal of the Korean Surgical Society Year: 2003 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pancreatic Neoplasms / Prognosis / Recurrence / Bile Duct Neoplasms / Bile Ducts / ROC Curve / Follow-Up Studies / CA-19-9 Antigen Type of study: Observational study / Prognostic study Limits: Humans Language: Korean Journal: Journal of the Korean Surgical Society Year: 2003 Type: Article