Presença de 20% ou mais de clue cells como um criterio diagnostico de vaginose bacteriana em esfregaços de Papanicolaou

Orientador: Jose Antonio SimõesDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias MedicasResumo: Objetivo: Avaliar a acurácia da presença de pelo menos 20% de clue cells nos esfregaços de Papanicolaou para o diagnóstico de vaginose bateriana (VB), avaliar a reprodutibilidade interobservador deste critério padronizado e comparar a acurácia das amostras cervicais e vaginais para este diagnóstico. Métodos: Foi realizado um estudo de validação de teste diagnóstico envolvendo 135 mulheres em idade reprodutiva atendidas no ambulatório de Planejamento Familiar da Universidade Estadual de Campinas. As mulheres foram submetidas a um exame ginecológico, no qual foram coletadas amostras cervicais e do fundo de saco vaginal para o exame de Papanicolaou, e também amostras do fundo de saco vaginal para realização do exame bacterioscópico corado pelo método de Gram e a para o exame a fresco. Avaliaram-se também os quatro critérios clínicos de Amsel para diagnóstico de VB. As lâminas de Gram foram analisadas utilizando os critérios bacterioscópicos de Nugent, método considerado padrão-ouro, no qual uma pontuação = 7 foi considerada positiva para VB. Nos esfregaços de Papanicolaou a presença de 20% ou mais de clue cells foi considerada positiva para VB, sendo este critério avaliado por dois observadores de laboratórios diferentes. Resultados: A freqüência de VB foi de 22% quando diagnosticada pelo método de Nugent, 24% pelo método de Papanicolaou e 29% pelos critérios de Amsel. O exame de Papanicolaou para o diagnóstico de VB utilizando como o critério a presença de pelo menos 20% de clue cells nos esfregaços, apresentou sensibilidade de 87%, especificidade de 94%, valor preditivo positivo de 81% e valor preditivo negativo de 96%. Este critério resultou em uma excelente concordância entre as amostras cervicais e vaginais (Kappa: 0,92) e também em uma excelente concordância entre os dois observadores (Kappa: 0,87). Conclusão: A presença de 20% ou mais de clue cells nos esfregaços de Papanicolaou é um critério acurado e reprodutível para o diagnóstico de VB, podendo ser utilizado para o diagnóstico presuntivo desta infecção sem a necessidade de coleta adicional de amostra vaginalAbstract: Objective: To evaluate the accuracy of the presence of at least 20 % of clue cells to diagnose bacterial vaginosis (BV) in Pap-smear, to asses the reproducibility of this criterion for the diagnosis of BV between different observers and to compare the accuracy of samples collected from cervical and vaginal sites to perform the diagnosis of BV. Methods: This is a diagnostic test validation study of 135 women of reproductive age attending at the Family Planning Out-patient Clinic of the Universidade Estadual de Campinas. A pelvic examination was performed to collect samples from cervical and vaginal sites for Pap-smear. Swabs were also collected for Gram¿s stain and wet mount. Amsel¿s criteria were also used for the presence of BV. The Gram stained slides were evaluated and graded for the presence of BV using Nugent¿s criteria. A score = 7 was defined as BV and considered as gold standard. The presence of = 20% of clue cells in Pap-smears was defined as positive for BV. These Pap-smears were analysed by two cytologists from different laboratories. Results: The frequency of BV was 22% by Nugent¿s criteria, 29% by Amsel¿s criteria and 24% by Pap-smear criterion. The use of the presence of at least 20% of clue cells in the Pap-smear for the diagnosis of BV showed a sensitivity of 87%, specificity of 94%, positive predictive value of 81% and negative predictive value of 96%. The concordance among the cervical and vaginal samples for the diagnosis of BV by Pap-smear was excellent (Kappa: 0.92). In addition, the concordance between the observers for diagnosis of BV by Pap-smear was also excellent (Kappa: 0.87). Conclusion: Our findings support the accuracy and reproducibility of Pap-smear for presumptive diagnosis of BV using the presence of 20% of clue cells as a diagnosis criterion. Furthermore, the results suggest that the screening of BV by Pap's can be made without an additional vaginal sample collectionMestradoCiencias BiomedicasMestre em Tocoginecologi

Why does the prevalence of cytopathological results of cervical cancer screening can vary significantly between two regions of Brazil?

PURPOSE:To analyze the prevalence of cervical cytopathological results for the screening of cervical cancer with regard to women's age and time since the last examination in Maceió and Rio de Janeiro, Brazil, among those assisted by the Brazilian Unified Health System.METHODS: Cervical cytopathological results available in the Information System of Cervical Cancer Screening for the year 2011 were analyzed, corresponding to 206,550 for Rio de Janeiro and 45,243 for Maceió.RESULTS: In Rio de Janeiro, examination at one and two year intervals predominated, while in Maceió examination at one and three year intervals had a higher predominance. Women who underwent cervical smear screening in Maceió were older than those in Rio de Janeiro. The prevalence of invasive squamous cell carcinoma was similar for the two cities, but all the other results presented a higher prevalence in Rio de Janeiro: ASCUS (PR=5.32; 95%CI 4.66-6.07); ASCH (PR=4.27; 95%CI 3.15-5.78); atypical glandular cells (PR=10.02; 95%CI 5.66-17.76); low-grade squamous intraepithelial lesions (PR=6.10; 95%CI 5.27-7.07); high-grade squamous intraepithelial lesions (PR=8.90; 95%CI 6.50-12.18) and adenocarcinoma (PR=3.00; 95%CI 1.21-7.44). The rate of unsatisfactory cervical samples was two times higher in Maceió and that of rejected samples for analysis was five times higher in Maceió when compared to Rio de Janeiro.CONCLUSIONS: The prevalence rates of altered cervical cytopathological results was significantly higher in Rio de Janeiro than in Maceió. There is no objective information that may justify this difference. One hypothesis is that there may be a difference in the diagnostic performance of the cervical cancer screening, which could be related to the quality of the Pap smear. Thus, these findings suggest that it would be necessary to perform this evaluation at national level, with emphasis on the performance of cervical cancer screening in order to improve the effectiveness of cervical cancer control.OBJETIVO:Analisar a prevalência dos resultados citopatológicos empregados para o rastreamento do câncer do colo do útero em relação à faixa etária da mulher e ao tempo de realização do último exame, no Rio de Janeiro e Maceió, pelo Sistema Único de Saúde.MÉTODOS:Foram analisadas as informações do Sistema de Informação do Câncer do Colo do Útero referentes aos resultados dos exames citopatológicos realizados em 2011, que totalizaram 206.550 para Rio de Janeiro e 45.243 para Maceió.RESULTADOS: No Rio de Janeiro, predominaram exames citopatológicos realizados com intervalo de um e dois anos e, em Maceió, controles com intervalo de um e três anos. As mulheres atendidas no Maceió eram mais velhas do que aquelas do Rio de Janeiro. A prevalência do resultado citopatológico carcinoma escamoso invasor foi semelhante entre os municípios, porém todos os demais resultados apresentaram prevalência superior no Rio de Janeiro: atipias de significado indeterminado em células escamosas (RP=5,32; IC95% 4,66-6,07); atipias de significado indeterminado não podendo excluir lesão de alto grau (RP=4,27; IC95% 3,15-5,78); células glandulares atípicas (RP=10,02; IC95% 5,66-17,76); lesão intraepitelial escamosa de baixo grau (RP=6,10; IC95% 5,27;-7,07); lesão intraepitelial escamosa de alto grau (RP=8,90; IC95% 6,50-12,18) e adenocarcinoma (RP=3,00; IC95% 1,21-7,44). A taxa de amostras insatisfatórias para a análise foi duas vezes maior e de lâminas rejeitadas foi cinco vezes maior em Maceió, quando comparado ao Rio de Janeiro.CONCLUSÕES:As taxas de prevalência de resultados citopatológicos foram significativamente superiores no Rio de Janeiro do que em Maceió, e não há informações objetivas que possam justificar tal diferença. Uma hipótese é que haveria diferença no desempenho diagnóstico do exame citopatológico, o que poderia estar relacionada à qualidade do exame. Assim, tais achados sugerem que seria necessário avaliar este cenário no âmbito nacional, com ênfase no desempenho do exame citopatológico, visando melhorar a efetividade do controle do câncer de colo do útero.19219

[why Does The Prevalence Of Cytopathological Results Of Cervical Cancer Screening Can Vary Significantly Between Two Regions Of Brazil?].

To analyze the prevalence of cervical cytopathological results for the screening of cervical cancer with regard to women's age and time since the last examination in Maceió and Rio de Janeiro, Brazil, among those assisted by the Brazilian Unified Health System. Cervical cytopathological results available in the Information System of Cervical Cancer Screening for the year 2011 were analyzed, corresponding to 206,550 for Rio de Janeiro and 45,243 for Maceió. In Rio de Janeiro, examination at one and two year intervals predominated, while in Maceió examination at one and three year intervals had a higher predominance. Women who underwent cervical smear screening in Maceió were older than those in Rio de Janeiro. The prevalence of invasive squamous cell carcinoma was similar for the two cities, but all the other results presented a higher prevalence in Rio de Janeiro: ASCUS (PR=5.32; 95%CI 4.66-6.07); ASCH (PR=4.27; 95%CI 3.15-5.78); atypical glandular cells (PR=10.02; 95%CI 5.66-17.76); low-grade squamous intraepithelial lesions (PR=6.10; 95%CI 5.27-7.07); high-grade squamous intraepithelial lesions (PR=8.90; 95%CI 6.50-12.18) and adenocarcinoma (PR=3.00; 95%CI 1.21-7.44). The rate of unsatisfactory cervical samples was two times higher in Maceió and that of rejected samples for analysis was five times higher in Maceió when compared to Rio de Janeiro. The prevalence rates of altered cervical cytopathological results was significantly higher in Rio de Janeiro than in Maceió. There is no objective information that may justify this difference. One hypothesis is that there may be a difference in the diagnostic performance of the cervical cancer screening, which could be related to the quality of the Pap smear. Thus, these findings suggest that it would be necessary to perform this evaluation at national level, with emphasis on the performance of cervical cancer screening in order to improve the effectiveness of cervical cancer control.36192-

Reactional changes in short-term levonorgestrel-releasing intrauterine system (lng-ius) use

Objective: To evaluate endocervical and vaginal environment changes in women using a levonorgestrel-releasing intrauterine system (LNG-IUS). Methods: A quasi-experimental study included sixty women who had an LNG-IUS inserted in the Family Planning Clinic of UNICAMP between April and November of 2016. Women in reproductive age, non-pregnant, without the use of antibiotics and contraceptives seeking for LNG-IUS insertion were selected for this study. All women were evaluated with regard to vaginal and endocervical pH, vaginal and endocervical Gram-stained bacterioscopy, and Pap-smear before and two months after LNG-IUS insertion. Clinical aspects such as cervical mucus, vaginal discharge, and cervical ectopy were also observed. Results: After LNG-IUS insertion, there was an increase in the following parameters: endocervical pH>4.5 (p=0.02), endocervical neutrophil amount (p<0.0001), vaginal cytolysis (p=0.04). There was a decrease in vaginal discharge (p=0.01). No statistically significant changes were found in vaginal pH, neutrophils amount in the vaginal mucosa, vaginal discharge appearance, vaginal candidiasis, bacterial vaginosis, vaginal coccobacillary microbiota, cervical mucus appearance, or cervical ectopy size. Conclusions: Short-term LNG-IUS use did not increase vulvovaginal candidiasis or bacterial vaginosis, and led to diminished vaginal discharge. Notwithstanding, this device promoted reactional changes in the vaginal and endocervical environment, without modification on cervical ectopy size.65685786

Subdiagnóstico de neoplasia intraepitelial cervical (NIC) 2 ou lesão mais grave emmulheres combiópsia dirigida por colposcopia prévia mostrando NIC 1

sem informaçãosem informaçãoExpectant follow-up for biopsy-proven cervical intraepithelial neoplasia (CIN) 1 is the current recommendation for the management of this lesion. Nevertheless, the performance of the biopsy guided by colposcopy might not be optimal. Therefore, this study aimed to calculate the rate of underdiagnoses of more severe lesions in women with CIN 1 diagnosis and to evaluate whether age, lesion extent and biopsy site are factors associated with diagnostic failure. Methods Eighty women with a diagnosis of CIN 1 obtained by colposcopy-guided biopsy were selected for this study. These women were herein submitted to large loop excision of the transformation zone (LLETZ). The prevalence of lesions more severe than CIN 1 was calculated, and the histological diagnoses of the LLETZ specimens were grouped into two categories: "CIN 1 or less" and "CIN 2 or worse." Results The prevalence of lesions diagnosed as CIN 2 or worse in the LLETZ specimens was of 19% (15/80). Three women revealed CIN 3, and 1 woman revealed a sclerosing adenocarcinoma stage I-a, a rare type of malignant neoplasia of low proliferation, which was not detected by either colposcopy or previous biopsy. The underdiagnosis of CIN 2 was not associated with the women's age, lesion extension and biopsy site. Conclusions The standard methods used for the diagnosis of CIN 1 may underestimate the severity of the true lesion and, therefore, women undergoing expectant management must have an adequate follow-up393123127FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOCNPQ – CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO CIENTÍFICO E TECNOLOGICOsem informaçãosem informaçãoO seguimento de mulheres com neoplasia intraepitelial cervical (NIC) 1 comprovada por biópsia é atualmente a recomendação de conduta para esta lesão. Entretanto, o desempenho da biópsia guiada por colposcopia pode falhar. Assim, este estudo teve como objetivo estimar a taxa de subdiagnóstico de lesões mais graves em mulheres com diagnóstico de NIC 1 e avaliar se a idade, a extensão da lesão e o local da biópsia são fatores associados à falha do diagnóstico. Métodos Foram selecionadas 80 mulheres com diagnóstico de NIC 1 obtido por biópsia dirigida por colposcopia. Estas mulheres foram submetidas a excisão da zona de transformação por alça diatérmica (EZTAD). A prevalência de lesões mais graves do que NIC 1 foi calculada, e os diagnósticos histológicos feitos nas amostras obtidas por EZTAD foram agrupados em duas categorias: “NIC 1 ou menos grave” e “NIC 2 ou mais grave”. Resultados A prevalência de lesões diagnosticadas como NIC 2 ou mais grave nas amostras de EZTAD foi de 19% (15/80). Três mulheres apresentaram NIC 3, e uma mulher revelou adenocarcinoma esclerosante estágio I-a, um tipo raro de neoplasia maligna de baixa proliferação, que não foi detectado por qualquer exame de colposcopia ou biópsia anterior. O subdiagnóstico de NIC 2 não foi associado à idade, à extensão da lesão ou ao local da biópsia. Conclusão Os métodos de referência utilizados para o diagnóstico da NIC 1 podem subestimar a gravidade da lesão verdadeira e, portanto, as mulheres submetidas a conduta expectante devem ter um seguimento adequad

Vaginal lipidomics of women with vulvovaginal candidiasis and cytolytic vaginosis: a non-targeted LC-MS pilot study

sem informaçãoTo characterize the lipid profile in vaginal discharge of women with vulvovaginal candidiasis, cytolytic vaginosis, or no vaginal infection or dysbiosis. Design. Cross-sectional study. Setting. Genital Infections Ambulatory, Department of Tocogynecology,138sem informaçãosem informaçãosem informaçãoThe supervision of the laboratory studies by Gustavo Henrique Bueno Duarte at Thomson Mass Spectrometry Laboratory–Campinas State Universit

Hpv 16 Is Related To The Progression Of Cervical Intraepithelial Neoplasia Grade 2: A Case Series.

Purpose. To describe the acquisition, persistence, and clearance of HPV infection in women with CIN 2 followed up for 12 months. Methods. Thirty-seven women with CIN 2 biopsy, who have proven referral to cervical smear showing low-grade squamous intraepithelial lesions or atypical squamous cells of undetermined significance and tested for HPV, were followed up for one year with cervical smear, colposcopy, and HPV test every three months. HPV DNA was detected by the polymerase chain reaction and genotyping by reverse line blot hybridization assay. Results. CIN 2 regression rate was 49% (18/37), persistence as CIN 1 or CIN 2 was 22% (8/37), and progression to CIN 3 was 29% (11/37). Multiple HPV types were observed at admission in 41% (15/37) of cases. HPV 16 was detected at admission in 58% (11/19) of the cases that persisted/progressed and in 39% (7/18) of the cases that regressed. HPV 16 was considered possibly causal in 67% (10/15) of the cases that persisted or progressed and in 10% (1/10) of the cases that regressed (P = 0.01). Conclusion. Multiple HPV infections were frequently detected among women with CIN 2 at admission and during the followup. The CIN 2 associated with HPV 16 was more likely to persist or to progress to CIN 3.201332890

Predictive value of DNA and expression E6/E7 genes of human papillomavirus in the evolution of cervical intraepithelial neoplasia grade 2

Orientadores: Luiz Carlos Zeferino, Sílvia Helena Rabelo dos SantosTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências MédicasResumo: A avaliação das taxas de evolução da NIC 2 e a identificação de aspectos clínicos e marcadores preditivos de regressão desta lesão podem identificar as mulheres que se beneficiariam de uma conduta expectante e seguimento periódico. Objetivo: Avaliar alguns fatores clínicos e moleculares associados à progressão e regressão da NIC 2, em mulheres submetidas à conduta expectante. Sujeitos e Métodos: O estudo foi do tipo coorte e incluiu 50 mulheres com diagnóstico de NIC 2 confirmado por biópsia, após serem referenciadas ao Centro de Atenção Integral à Saúde da Mulher (CAISM), Universidade Estadual de Campinas (UNICAMP), por apresentaram exame citopatológico mostrando lesão intraepitelial escamosa de baixo grau (LIEBG). Estas mulheres foram acompanhadas por 12 meses, com consultas trimestrais para avaliação citológica e colposcópica. Na admissão, foram coletadas amostras para a realização de testes de genotipagem de HPV, os quais foram realizados no Instituto Ludwig de Pesquisa Sobre o Câncer; e também para testes de detecção de RNA mensageiro dos genes E6/E7 dos HPV tipos 16,18,31,33 e 45, realizados no Laboratório Salomão & Zoppi. Os resultados deste estudo estão sendo apresentados em dois artigos. O primeiro avaliou a frequência de progressão, persistência e regressão da NIC2, como também testou se a idade da mulher no diagnóstico e idade ao início da atividade sexual variaram com a evolução da lesão. O segundo artigo avaliou a associação dos tipos e espécies de HPV e da expressão dos genes virais E6 e E7 com a evolução de NIC 2. Resultados: Ao final de 12 meses houve 74% de regressão, 24% de progressão de NIC 2 para NIC 3, e um caso de persistência da NIC 2. A maioria dos casos regrediu nos primeiros seis meses de seguimento. Não foi observada associação entre a evolução de NIC 2 e a idade ou início da atividade sexual em mulheres submetidas à conduta expectante. As taxas de regressão da NIC 2 aos 12 meses de seguimento, para mulheres com HPV da espécie alfa-9, comparada com outras espécies ou HPV negativo foram 69,4 e 91,7% respectivamente, sendo que esta diferença foi estatisticamente significativa ao longo do seguimento. A taxa de regressão de NIC 2 aos 12 meses foi de 68,3% para mulheres com teste positivo para RNA mensageiro de E6/E7 e 82,6% para mulheres com teste negativo para este marcador, mas esta diferença não foi estatisticamente significativa. Conclusão: A maioria da NIC 2 diagnosticada por biópsia em mulheres selecionadas por exame citológico com diagnóstico de lesão LIBG regride em até 12 meses. Mulheres infectadas por tipos de HPV da espécie alfa-9, especialmente o HPV 16, são menos propensas a ter regressão da NIC 2 ao final de 12 meses de seguimento. Os resultados não demonstraram associação entre a expressão de genes virais E6/E7 com a regressão ou progressão da NIC 2Abstract: The evaluation of CIN 2 outcome rates and identification of clinical features and predictive markers of the lesion regression can identify women who would benefit from an expectant management and regular monitoring. Objective: To evaluate the clinical and molecular factors associated with progression and regression of CIN 2 in women undergoing expectant management. Subjects and Methods: This cohort study included 50 women with diagnosis of CIN 2 confirmed by biopsy after being referenced to the Center of Integral Attention to Women's Health, State University of Campinas, with Pap smear showing low-grade lesion (LSIL). These women were followed for 12 months with three-monthly controls visits for cytological and colposcopic evaluation. On admission, samples were collected to perform HPV genotyping, which was held at the Ludwig Institute and also for the detection of E6/E7 mRNA, which was performed in the laboratory Salomão & Zoppi. The results of this study are presented in two articles. The first assessed the frequency of progression, persistence and regression of CIN2, comparing these rates with clinical factors such as woman's age and age at first sexual intercourse. The second evaluated the association between CIN 2 evolution with the HPV species and expression of viral genes E6 and E7. Results: At the end of the 12 months of monitoring, there was 74% of regression, 24% of progression to CIN 3 and only one case of persistence of CIN 2. The most of the CIN 2 regresses during the first six months of follow-up. However, there was no statistically significant association between the women' age and the age at first sexual intercourse. The rate of CIN 2 regression at 12 months follow-up for women with HPV alpha- 9 compared with another HPV species groups or HPV negative were respectively 69,4% and 91,7%, and the difference up to 12-month follow-up was statistically significant. The CIN 2 regression rate at 12-month follow-up for women with positive E6/E7 mRNA was 68.3%, and for negative was 82.6%, but the difference up to 12-month follow-up was not statistically significant. Conclusion: The majority of CIN 2 diagnosed by biopsy in women with previous cervcial smear showing LSIL regresses after 12 months. Women infected with HPV alpha-9, which includes HPV 16, are less likely to have CIN 2 regression over 12 months of follow-up. The results showed no association between the expression of viral genes E6 and E7 with the regression or progression of CIN 2DoutoradoCiencias BiomedicasDoutor em Tocoginecologi