Audits of the treatment of genital warts: closing the feedback loop

Abstract

An initial audit of the treatment of patients presenting to the GUM Department at Leeds General Infirmary with a first episode of anogenital warts was reported in 1993. Treatment was found to be unselective and poorly monitored and the results of treatment were disappointing. As a consequence, guidelines for the management of new patients presenting with genital warts were devised. In order to establish whether these guidelines had produced any improvements in outcome, a second audit was performed looking at the results of treatment in patients with new genital warts who attended 6 months or more after the new guidelines were introduced. Progress was documented for 6 months after presentation. There was a significant fall in the numbers of patients receiving podophyllin 25% solution as firstline treatment, and corresponding increases in the initial use of cryotherapy, trichloracetic acid and, in men, podophyllotoxin solution. (Podophyllotoxin was not licensed for use in women at the time of the second audit.) There were significant improvements in the outcome of treatment. Originally 44% of men had warts despite receiving treatment for 3 months, and 32% were still attending for treatment 6 months after presentation. After the introduction of treatment guidelines, these figures had fallen to 8% and 3% respectively. In the first audit 38% of women still had warts after 3 months' treatment but in the second audit this figure was reduced to 18%. At 6 months, the percentage of women still attending for treatment was halved from 12% in the first audit to 6% in the second audit. The mean number of clinic visits fell from 5 to 3 in men and from 9 to 6 in women. The treatment protocols have been modified and now include the use of podophyllotoxin cream and solution in both men and women.