Frequência de Papilomavírus humano (HPV) e Chlamydia trachomatis em gestantes / Frequency of Human Papillomavirus (HPV) and Chlamydia trachomatis in Pregnant Women

Este estudo transversal de caráter analítico teve por objetivo avaliar a frequência da infecção pelo Papilomavírus humano (HPV) e Chlamydia trachomatis, bem como de alterações citopatológicas e colposcópicas em um grupo de 96 gestantes (51 HIV soropositivas e 45 HIV soronegativas) no período de abril de 2006 a maio de 2007. Todas responderam a questionário padrão seguido de atendimento ginecológico. Foram coletadas amostras da cérvice uterina para pesquisa de HPV e C. trachomatis pela técnica de Captura de Híbrido (CH II®) para a colpocitologia oncótica e, por fim, realizou-se o exame colposcópico. Os dados foram armazenados e analisados no Epi Info, versão 6.04 e SPSS versão 9.0. Utilizou-se o teste do Qui-quadrado considerando o valor de 5 por cento (p<0,05) como limiar de significância para análise estatística. Das gestantes HIV positivas, 62,7 por cento foram positivas para HPV e 17,6 por cento para C. trachomatis. Entre as gestantes HIV negativas, 17,8 por cento e 4,4 por cento foram positivas para o HPV e para a C. trachomatis, respectivamente. A colpocitologia oncótica identificou maior frequência de lesões intraepiteliais escamosas cervicais de baixo grau em ambos os grupos, sendo 21,6 por cento entre as gestantes HIV positivas e 13,3 por cento no grupo HIV negativo. O epitélio acetobranco foi o achado colposcópico mais reiterado nos dois grupos. Concluiu-se que a infecção pelo HPV e por C. trachomatis é mais freqüente em gestantes infectadas pelo HIV caracterizando, desta forma, à luz de conhecimentos atuais, uma população de maior risco de desenvolver câncer cervical.

A cross-sectional analytical study was conducted in order to identify the frequency of the Human Papillomavirus (HPV) infection, Chlamydia trachomatis, colposcopic and cytological findings in a group of 96 pregnant women (51 HIV positive and 45 HIV negative) from April 2006 to May 2007. All patients went through a standard questionnaire, followed by gynecological examination. Samples were collected for HPV survey and C. trachomatis by the Hybrid Capture II technique for oncotic colpocytology (Papanicolaou), followed by colposcopy. Data were stored and analyzed using Epi Info, version 6.04 and SPSS version 9.0. For statistical analysis the chi-square test were used with level of significance set at 5 percent. Among the HIV positive pregnant women 62.7 percent were positive for HPV and 17.6 percent were positive for C. trachomatis. In contrast, for HIV negative pregnant women 17.8 percent and 4.4 percent were positive for HPV and C. trachomatis, respectively. The Pap smear identified a larger amount of low grade squamous intraepithelial lesions in both groups, 21.6 percent in HIV positive pregnant women and 13.3 percent in HIV negative pregnant women. The aceto white epithelium was the most frequent colposcopy abnormality. In conclusion, the infection by HPV and C. trachomatis is more common in pregnant women infected with HIV, characterizing, thus, based on current knowledge, a population that is more susceptible to cervical cancer.

Frequency and types of human papillomavirus among pregnant and non-pregnant women with human immunodeficiency virus infection in Recife determined by genotyping

Women with human immunodeficiency virus (HIV) infection present a higher risk of infection by the human papillomavirus (HPV) and cervical cancer. To determine HPV genotypes and frequencies among HIV-positive women, an analytical cross-sectional study was carried out on 147 women (51 were pregnant and HIV-positive, 45 pregnant and HIV-negative and 51 HIV-positive and not pregnant), who were attended at a maternity hospital in Recife between April 2006-May 2007. They answered a questionnaire and underwent a gynaecological examination, with samples collected for HPV investigation by PCR, hybrid capture II, oncotic colpocytology (Papanicolau) and colposcopy. The frequency of HPV DNA was 85.3 percent (122/143), with a high proportion of HPV types that have been identified as high risk for cervical cancer. Among HIV-positive pregnant women, there was an HPV prevalence of 96 percent (48/50), of whom 60.4 percent (29/48) were high-risk. HPV 16, 58, 18, 66 and 31 were the most frequent types. Colpocytological abnormalities were observed in 35.3 percent (18/51) of HIV-positive non-pregnant women, 21.6 percent (11/51) of HIV-positive pregnant women and 13.3 percent (6/45) of HIV-negative pregnant women with a predominance of low-level lesions. A high prevalence of HPV infection was identified, especially with the high-risk types 16, 58, 18 and 66. This study identified high-risk HPV types in all three groups examined (HIV-positive pregnant women, HIV-negative pregnant women and HIV-positive not pregnant), characterising its distribution in this setting.