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Observational Study
. 2022 Jan;279(1):285-292.
doi: 10.1007/s00405-021-07040-9. Epub 2021 Aug 28.

Clinical implications of alpha, beta, and gamma HPV infection in juvenile onset recurrent respiratory papillomatosis

Affiliations
Observational Study

Clinical implications of alpha, beta, and gamma HPV infection in juvenile onset recurrent respiratory papillomatosis

Martina Bertinazzi et al. Eur Arch Otorhinolaryngol. 2022 Jan.

Abstract

Purpose: The aim of our study was to evaluate the prevalence of different HPV genera-alpha, beta and gamma-in Juvenile onset Recurrent Respiratory Papillomatosis (JoRRP) and examine the association of type and genus-specific viral features with the clinical outcome of disease.

Methods: This retrospective observational study included consecutive patients with JoRRP who were treated in a referral centre between October 2000 and October 2020. All patients underwent cold excision and laser vaporisation of papillomatous lesions. Samples were analysed for the presence of 120 viral genotypes (22 alpha-HPV, 46 beta-HPV, 52 gamma-HPV) using a highly sensitive multiplex genotyping assay.

Results: Twenty patients with JoRRP, aged 0.3-11 years, were included, with a median follow-up of 13.5 years. All samples were HPV DNA positive: 20 (100%) for alpha-HPV DNA; 7 (35%) for beta-HPV DNA; 0 for gamma-HPV DNA. Three groups were defined according to the number of infections: seven cases (35%) with HPV mono-infection; ten cases (50%) with HPV double-infection; three cases (15%) with ≥ 3 HPV infections. At diagnosis, patients with ≥ 3 HPV infections reported higher median Derkay's score than those with mono-infection (21 vs 14, P = 0.018). Number of HPV infections was also associated with clinical outcomes, with an average of 0.5 surgical procedures/year in patients with mono-infection, 1.2 for double-infection, 2.6 for ≥ 3 infections (P = 0.006).

Conclusion: Despite the small sample size, these preliminary data support an association between the number of different alpha and beta HPV co-infections and the clinical severity of the disease.

Keywords: Children; Co-infections; Human papillomavirus; Juvenile respiratory papillomatosis; Prognosis.

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Conflict of interest statement

The authors have no conflict of interests to declare that are relevant to the content of this article.

Figures

Fig. 1
Fig. 1
Cumulative number of surgeries according to number of co-infection with alpha-HPV and with beta-HPV
Fig. 2
Fig. 2
Cumulative number of surgeries according to alpha-HPV infections

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