Abstract

TORO DE MENDEZ, Morelva  and  LOPEZ DE SANCHEZ, Mercedes. Infección por virus papiloma humano en pacientes con citología de cuello uterino negativa. Rev Obstet Ginecol Venez [online]. 2017, vol.77, n.1, pp.11-20. ISSN 0048-7732.

Objective: To examine the prevalence of human papillomavirus infection in patients with negative cervical cytology in a cervical cancer screening program of the Barrio Adentro Mission in Venezuela. Methods: A total of 3,883 conventional cervical cytology samples were analyzed according to the Bethesda 2001 system, of which 3651 (94.0%) were reported normal cytology. PCR / RFLP were used for the detection and typing of human papilloma virus. Results: The mean age of the patients was 34.8 ± 12.20 years (range: 13 to 89). The overall prevalence of infection was 28.5% (1038/3651). In 31.9% of cases high oncogenic risk human papillomavirus were detected and 21.2% of HPV low oncogenic risk. Human papillomavirus 6 (57.7%) was the most prevalent genotype, followed by unknown virus sequences (45.4%). Human papillomavirus 16 was the most commonly found (28.09%) among high risk, followed by 18 (17.5%) and 31 (14.2%) (p <0.000). We also detected 33 (4.8%), 52 (4.2%), 53 (3.6%) and 58 (3.1%). As age increased, the positivity for human papillomavirus (p <0.000) decreased, and the highest viral prevalence occurred in women’s under 25 (35.1%). Conclusions: The prevalence of human papilloma virus in patients with negative cytology is high and heterogeneous in this medium, with a mixture of high and low risk viruses.

Keywords : Negative cervical cytology; NLIM; Prevalence of specific HPV genotypes.

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