Measuring the Severity of Topical 5-Fluorouracil Toxicity

Author:

Korgavkar Kaveri1,Firoz Elnaz F.1,Xiong Michael1,Lew Robert1,Marcolivio Kimberly1,Burnside Nancy1,Dyer Robert1,Weinstock Martin A.21

Affiliation:

1. From the Dermatoepidemiology Unit, Veterans Affairs Medical Center, Providence, RI; Departments of Dermatology and Epidemiology, Brown University, Providence, RI; Department of Dermatology, Rhode Island Hospital, Providence, RI; and Dermatoepidemiology Unit, Veterans Affairs Medical Center, Boston, MA

2. for the VAKCC Trial Group

Abstract

Background: Topical 5% 5-fluorouracil (5-FU) is known to cause toxicity, such as erythema, pain, and crusting/erosions. Objectives: We sought to develop a scale to measure this toxicity and test the scale for reliability. Methods: A scale was developed involving four parameters: erythema severity, percentage of face involved in erythema, crusting/erosions severity, and percentage of face involved in crusting/erosions. Thirteen raters graded 99 sets of photographs from the Veterans Affairs Keratinocyte Carcinoma Chemoprevention (VAKCC) Trial using these parameters. Results: Intraclass correlation overall for 13 raters was 0.82 (95% CI 0.77–0.86). There was no statistically significant trend in reliability by level of training in dermatology. Conclusions: This scale is a reliable method of evaluating the severity of toxicity from topical 5-fluorouracil and can be used by dermatologists and nondermatologists alike.

Publisher

SAGE Publications

Subject

Dermatology,Surgery

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