Actas dermo-sifiliograficas · 2022
[Translated article] Changes in the Prevalence of Human Papillomavirus Genotypes in Genital Warts Since the Introduction of Prophylactic Vaccines.
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Magdaleno-Tapial J, Hernández-Bel P, Ortiz-Salvador J M, Casanova-Esquembre A, Lorca-Spröhnle J, Labrandero-Hoyos C, Peñuelas-Leal R, Sánchez-Carazo J L, Pérez-Ferriols A
Аннотация
BACKGROUND AND OBJECTIVE: Genital warts are caused by the human papillomavirus (HPV), whose genotypes have traditionally been classified as low risk or high risk (oncogenic). The first 2 prophylactic vaccines included the most common genotypes at the time: HPV-6, HPV-11, HPV-16, and HPV-18. The aim of this study was to evaluate the prevalence of HPV types in our setting 10 years after the introduction of HPV vaccines.
MATERIAL AND METHODS: Descriptive, observational, retrospective study of patients diagnosed with genital warts at the sexually transmitted infection unit of a dermatology department between January 2016 and June 2019.
RESULTS: In total, 362 patients were diagnosed with genital warts during the study period, and 212 (58.6%) underwent genotyping. Thirty-two distinct HPV types were observed, the most common being HPV-6, HPV-11, HPV-16, and HPV-42. HPV DNA was detected in 93.9% of the samples analyzed, and there were 299 genotypes (mean, 1.5 per patient). Overall, 26.6% of patients had more than a single HPV genotype, while 24.1% had at least 1 high-risk type. No significant associations were found between the presence of high-risk HPV types and any of the study variables. At least 2 of the 4 HPV types targeted in the original vaccines were detected in 94.1% of lesions.
CONCLUSIONS: Compared to 10 years ago, the prevalences of HPV types included in the first 2 prophylactic vaccines have decreased, while the proportion of patients with at least 1 of the 4 most common types has remained unchanged. We also observed a slight increase in infections with multiple HPV types or at least 1 high-risk type.
MATERIAL AND METHODS: Descriptive, observational, retrospective study of patients diagnosed with genital warts at the sexually transmitted infection unit of a dermatology department between January 2016 and June 2019.
RESULTS: In total, 362 patients were diagnosed with genital warts during the study period, and 212 (58.6%) underwent genotyping. Thirty-two distinct HPV types were observed, the most common being HPV-6, HPV-11, HPV-16, and HPV-42. HPV DNA was detected in 93.9% of the samples analyzed, and there were 299 genotypes (mean, 1.5 per patient). Overall, 26.6% of patients had more than a single HPV genotype, while 24.1% had at least 1 high-risk type. No significant associations were found between the presence of high-risk HPV types and any of the study variables. At least 2 of the 4 HPV types targeted in the original vaccines were detected in 94.1% of lesions.
CONCLUSIONS: Compared to 10 years ago, the prevalences of HPV types included in the first 2 prophylactic vaccines have decreased, while the proportion of patients with at least 1 of the 4 most common types has remained unchanged. We also observed a slight increase in infections with multiple HPV types or at least 1 high-risk type.