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Does HPV biotype influence the characteristics and evolution of plantar warts?
Sara García-Oreja1, Francisco Javier Álvaro-Afonso1, David Sevillano-Fernández2
1Clínica Universitaria de Podología, Facultad de Enfermería, Fisioterapia y Podología, Universidad Complutense de Madrid, Madrid, Spain.
Background:
Few studies have addressed the relationship of human papillomavirus (HPV) biotypes to patient characteristics and the clinical signs, course, and response to the treatment of plantar warts.
Objective:
Analyze the HPV types associated with plantar warts and their relationship with warts characteristics, patient characteristics and response to treatment.
Methods:
A total of 372 patients sampled for hyperkeratosis of a plantar wart were included. Multiplex polymerase chain reaction (PCR) was performed to detect the HPV biotype.
Results:
The prevalence of HPV was 81.2%, and HPV1 was the most prevalent biotype (36.1%). HPV1 was the most prevalent biotype in patients < 70 years old (90.9% in < 10 years), and biotypes 2, 19 and 27 were the most prevalent in patients > 70 years old (p = 0.012). HPV1 was the most frequent in patients with one (39,9%) or two (47.1%) warts and HPV5 (33.3%) in patients with three warts (p < 0.001). Cure, spontaneous resolution, and recurrence were higher in HPV1 (p < 0.001). HPV14 warts healed the fastest (2 months quartile 1-3 (2.0-2.0)), and HPV5 (10.977 (6.0-20.0)) and HPV27 (7.5 (3.0-10.0)) warts (p = 0.033) took the longest to heal.
Conclusions:
HPV biotype is associated with age and the number of warts and appears to influence the natural history of warts and their response to treatment.
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