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Obstetrics & Gynecology 2006;107:71-76
© 2006 by The American College of Obstetricians and Gynecologists
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ORIGINAL RESEARCH

Is Cytologic Screening an Effective Surveillance Method for Detection of Vaginal Recurrence of Uterine Cancer?

Amy L. Cooper, MD1, Jean M. Dornfeld-Finke, MD2, Helen W. Banks2, Diane D. Davey, MD2 and Susan C. Modesitt, MD1

From the 1Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, and the 2Department of Pathology and Laboratory Medicine, University of Kentucky Chandler Medical Center, Lexington, Kentucky.

OBJECTIVE: Cytologic screening is commonly used in follow-up of women with uterine cancer to detect vaginal recurrence. The study objective was to assess the efficacy and costs associated with Pap tests in routine surveillance of women with uterine cancer.

METHODS: Medical records and pathology databases identified patients with uterine cancer at one institution from 1990 to 2002. Patients with their cytologic follow-up at our institution were selected for a subset analysis of Pap tests to estimate the number of Paps and associated charges and costs during follow-up.

RESULTS: Seven hundred seventeen women were diagnosed with uterine cancer; the mean age was 60.9 years and the median follow-up was 46 months. A total of 36 women had a recurrence in the vagina; 31 (86%) were apparent clinically, and only 5 (14%) were asymptomatic and identified by Pap test. Women with grade 1 tumors had decreased risk of vaginal recurrence, with an odds ratio of 0.186 (95% confidence interval 0.49–0.712) on multivariate analysis (stage and histology were not significant factors for vaginal recurrence). A subset of 435 patients received cytologic follow-up at our institution, with a median 3 Pap tests/patient (mean 4.25, range 1–24). Estimates based on our data demonstrate that 430 Pap tests are required to detect one asymptomatic vaginal recurrence, and the addition of the Pap test increases the cost of surveillance by $15,142 per asymptomatic recurrence detected (but a charge to insurance of $23,487). Pap tests identified an asymptomatic vaginal recurrence in only 0.7% of this uterine cancer population.

CONCLUSION: Pap tests after diagnosis and treatment of uterine cancer infrequently detect asymptomatic vaginal recurrences and may not be cost-effective.

LEVEL OF EVIDENCE: III






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Copyright © 2006 by the American College of Obstetricians and Gynecologists.