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Journal of Lower Genital Tract Disease:
doi: 10.1097/01.lgt.0000225899.75207.0a
Original Articles

Treatment of Vulvodynia with Tricyclic Antidepressants: Efficacy and Associated Factors

Reed, Barbara D. MD, MSPH1; Caron, Amy M. MD2; Gorenflo, Daniel W. PhD1; Haefner, Hope K. MD3

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Abstract

Objective. To determine the efficacy of tricyclic antidepressants (TCAs) as treatment for vulvodynia, and to identify demographic factors and pain characteristics associated with improvement.

Materials and Methods. Between January 2001 and April 2004, women diagnosed with vulvodynia were offered TCA therapy. The patients rated their worst recent pain on a 10-point scale at baseline and at follow-up; improvement was classified as at least 50% reduction in reported pain from baseline.

Results. Of 271 women diagnosed with vulvodynia, 209 (77.1%) were treated initially with a TCA (amitriptyline [n = 183], desipramine [n = 23], and other tricyclic medications [n = 3]). One hundred sixty-two (59.8%) of the women were followed up at a median period of 3.2 months after their initial visit, including 122 women who had started on a TCA. Of 83 women taking a TCA at the first follow-up, 49 (59.3%) improved by more than 50%, compared with 30 of 79 women not taking TCA at follow-up (improvement rate = 38.0%; p =.007; odds ratio = 2.35; 95% CI = 1.23-4.42). Multivariate analysis indicated that age, severity of pain, diagnosis (localized vs generalized vulvar pain), length of time with pain before treatment, age at menarche, use of oral contraceptives, and the number of previous pregnancies were not associated with the outcome; however, taking a TCA at the time of the first follow-up was strongly associated with improvement (p <.001; odds ratio = 4.23; 95% CI = 1.98-9.01). Repeated analysis including only those women prescribed with amitriptyline rather than any tricyclic revealed similar results.

Conclusions. Women with vulvodynia who were prescribed a TCA in general (or amitriptyline, specifically) were more likely to have pain improvement compared with those women not taking these medications at follow-up. Randomized, controlled studies of TCAs versus other treatments are needed to clarify the overall effectiveness of these drugs.

©2006The American Society for Colposcopy and Cervical Pathology

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