Vaccines (Dec 2020)

Assessing the Long-Term Role of Vaccination against HPV after Loop Electrosurgical Excision Procedure (LEEP): A Propensity-Score Matched Comparison

  • Giorgio Bogani,
  • Francesco Raspagliesi,
  • Francesco Sopracordevole,
  • Andrea Ciavattini,
  • Alessandro Ghelardi,
  • Tommaso Simoncini,
  • Marco Petrillo,
  • Francesco Plotti,
  • Salvatore Lopez,
  • Jvan Casarin,
  • Maurizio Serati,
  • Ciro Pinelli,
  • Gaetano Valenti,
  • Alice Bergamini,
  • Barbara Giannella,
  • Andrea Dell’Acqua,
  • Ermelinda Monti,
  • Paolo Vercellini,
  • Giovanni D’ippolito,
  • Lorenzo Aguzzoli,
  • Vincenzo D Mandato,
  • Paola Carunchio,
  • Gabriele Carlifante,
  • Luca Giannella,
  • Cono Scaffa,
  • Francesca Falcone,
  • Stefano Ferla,
  • Chiara Borghi,
  • Antonino Ditto,
  • Mario Malzoni,
  • Andrea Giannini,
  • Maria Giovanna Salerno,
  • Viola Liberale,
  • Biagio Contino,
  • Cristina Donfrancesco,
  • Michele Desiato,
  • Anna Myriam Perrone,
  • Giulia Dondi,
  • Pierandrea De Iaco,
  • Umberto Leone Roberti Maggiore,
  • Mauro Signorelli,
  • Valentina Chiappa,
  • Simone Ferrero,
  • Giuseppe Sarpietro,
  • Maria G Matarazzo,
  • Antonio Cianci,
  • Sara Bocio,
  • Simona Ruisi,
  • Rocco Guerrisi,
  • Claudia Brusadelli,
  • Lavinia Mosca,
  • Raffaele Tinelli,
  • Rosa De Vincenzo,
  • Gian Franco Zannoni,
  • Gabriella Ferrandina,
  • Salvatore Dessole,
  • Roberto Angioli,
  • Stefano Greggi,
  • Arsenio Spinillo,
  • Fabio Ghezzi,
  • Nicola Colacurci,
  • Margherita Fischetti,
  • Annunziata Carlea,
  • Fulvio Zullo,
  • Ludovico Muzii,
  • Giovanni Scambia,
  • Pierluigi Benedetti Panici,
  • Violante Di Donato

DOI
https://doi.org/10.3390/vaccines8040717
Journal volume & issue
Vol. 8, no. 4
p. 717

Abstract

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Background: Primary prevention through vaccination is a prophylactic approach aiming to reduce the risk of developing human papillomavirus (HPV)-related lesions. No mature and long-term data supported the adoption of vaccination in women undergoing conization. Methods: This is a retrospective multi-institutional study. Charts of consecutive patients undergoing conization between 2010 and 2014 were collected. All patients included had at least 5 years of follow-up. We compared outcomes of patients undergoing conization plus vaccination and conization alone. A propensity-score matching algorithm was applied in order to reduce allocation biases. The risk of developing recurrence was estimated using Kaplan-Meir and Cox hazard models. Results: Overall, charts of 1914 women were analyzed. The study group included 116 (6.1%) and 1798 (93.9%) women undergoing conization plus vaccination and conization alone, respectively. Five-year recurrence rate was 1.7% (n = 2) and 5.7% (n = 102) after conization plus vaccination and conization alone, respectively (p = 0.068). After the application of a propensity-score matching, we selected 100 patients undergoing conization plus vaccination and 200 patients undergoing conization alone. The crude number of recurrences was 2 (2%) and 11 (5.5%) for patients undergoing conization plus vaccination and conization alone, respectively (p = 0.231). Vaccination had no impact on persistent lesions (no negative examination between conization and new cervical dysplasia; p = 0.603), but reduced the risk of recurrent disease (patients who had at least one negative examination between conization and the diagnosis of recurrent cervical dysplasia; p = 0.031). Conclusions: Patients having vaccination experience a slightly lower risk of recurrence than women who had not, although not statistically significantly different. Further evidence is needed to assess the cost effectiveness of adopting vaccination in this setting.

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