Cervical Intraepithelial Neoplasia grade 2 biopsy: Do p16INK4a and Ki-67 biomarkers contribute to the decision to treat? A cross-sectional study

ABSTRACT BACKGROUND: Managing cervical intraepithelial neoplasia grade 2 (CIN2) is challenging, considering the CIN2 regression rate, perinatal risks associated with excisional procedures, and insufficient well-established risk factors to predict progression. OBJECTIVES: To determine the ability of p16INK4a and Ki-67 staining in biopsies diagnosed with CIN2 to identify patients with higher-grade lesions (CIN3 or carcinoma). DESIGN AND SETTING: Cross-sectional study conducted at a referral center for treating uterine cervical lesions. METHODS: In 79 women, we analyzed the correlation of p16INK4a and Ki-67 expression in CIN2 biopsies with the presence of a higher-grade lesions, as determined via histopathology in surgical specimens from treated women or via two colposcopies and two cytological tests during follow-up for untreated women with at least a 6-month interval. The expression of these two biomarkers was verified by at least two independent pathologists and quantified using digital algorithms. RESULTS: Thirteen (16.8%) women with CIN2 biopsy exhibited higher-grade lesions on the surgical excision specimen or during follow-up. p16INK4a expression positively and negatively predicted the presence of higher-grade lesions in 17.19% and 86.67% patients, respectively. Ki-67 expression positively and negatively predicted the presence of higher-grade lesions in 40% and 88.24% patients, respectively. CONCLUSIONS: Negative p16INK4a and Ki67 immunohistochemical staining can assure absence of a higher-grade lesion in more than 85% of patients with CIN2 biopsies and can be used to prevent overtreatment of these patients. Positive IHC staining for p16INK4a and Ki-67 did not predict CIN3 in patients with CIN2 biopsies.

Efectividad de la crioterapia suministrada por enfermeras para lesiones preneoplásicas del cuello uterino

Introducción. El cáncer de cuello uterino es un problema de salud pública relevante en países de ingresos medios y bajos. El seguimiento de mujeres con tamización positiva y el acceso a tratamiento para neoplasia intraepitelial cervical (NIC) son retos mayores en estos países. Objetivo. Evaluar la efectividad de la crioterapia suministrada por enfermeras en casos de neoplasia intraepitelial de cérvix. Materiales y métodos. Se hizo la inspección visual directa con ácido acético y solución yodada (VIA-VILI), y se practicó colposcopia con biopsia, a mujeres entre los 25 y los 59 años, residentes en zonas de bajos ingresos de Bogotá. Profesionales de enfermería entrenados ofrecieron tratamiento inmediato con crioterapia a mujeres positivas en la inspección visual. Se les practicó colposcopia con biopsia antes del tratamiento y en un control a los 12 meses. Se evaluó la efectividad mediante tasas de curación (resultado: sin lesión) y regresión de NIC2/3 (resultado: ≤NIC1), por verificación colposcópica e histológica. Resultados. Se tamizaron 4.957 mujeres. En total, 499 fueron positivas y 472 aceptaron el tratamiento inmediato. Recibieron crioterapia por enfermería 365 mujeres (11 NIC2/3). La tasa de curación fue del 72 % (IC95%: 39-94 %) por verificación colposcópica, y del 40 % (IC95%: 22-85 %) por histología. Las tasas de regresión fueron del 100 y el 60 %, respectivamente. Se reportaron dos eventos adversos no graves relacionados. Conclusiones. Las tasas de curación y regresión por verificación colposcópica son similares a las reportadas con crioterapia administrada por médicos. El tamaño de la muestra con NIC2/3 dificulta la comparación por tipo de verificación. Los hallazgos apoyan la implementación de estrategias de "ver y tratar" por parte de enfermería en poblaciones con acceso limitado a servicios de salud.

Introduction. Cervical cancer is a relevant public health problem for low- and middleincome countries. Follow-up of positive-screened women and compliance with treatment of precancerous lesions are major challenges for these settings. Objective. To evaluate the efficacy of cryotherapy delivered by nurses for cervical intraepithelial neoplasia (CIN). Materials and methods. Direct visual inspection with acetic acid and lugol iodine (VIA- VILI), and colposcopy/biopsy were performed on women 25 to 59 years old, residents of low-income areas in Bogotá, Colombia. Trained nurses offered immediate cryotherapy to every woman with positive visual inspection. Colposcopy/biopsy was performed before treatment and at a 12-month follow-up. The effectiveness was measured as cure (outcome: no-lesion) and regression (outcome: CIN1) rates of CIN2/3 using colposcopic and histological verification. Results. A group of 4.957 women with VIA/VILI was valuated. In total, 499 were screen positive and 472 accepted immediate treatment. A total of 365 women (11 CIN2/3) received cryotherapy by nurses. Cure rate was 72% (95%CI: 39%-94%) and 40% (95%CI: 22%- 85%) by colposcopic and histological verification, respectively. Regression rates were 100% and 60%. There were two related non-serious adverse events. Conclusions. Cure and regression rates by colposcopic verification are like those reported for cryotherapy delivered by doctors. The sample size (CIN2/3) hinders comparisons by type of verification. Our findings support the implementation of screen-and-treat algorithms by nurses among populations with limited access to health services.

Comparación del Papanicolau con técnica convencional frente a técnica modificada / Comparison of the Pap smear with conventional technique versus modified technique

Introducción: a pesar de que la técnica de papanicolaou es el método más eficaz para la prevención y detección del cáncer cervicouterino, la precisión de esta herramienta sigue siendo controversial; debido a esto, existen esfuerzos médicos y científicos para mejorar la calidad del procedimiento. Objetivo: comparar la calidad en la toma de muestra entre la técnica convencional y la modificada. Material y métodos: estudio observacional descriptivo y comparativo en 150 muestras de citología cervical (75 muestras técnica convencional y 75 en técnica modificada) en mujeres de 25 a 64 años. Se analizaron variables emográficas, características del cérvix y calidad de la muestra. Se realizó estadística descriptiva y medidas de asociación. Estudio con riesgo mayor que el mínimo. Todas las participantes firmaron consentimiento informado. Resultados: la calidad de la muestra fue satisfactoria en el 92% para la técnica convencional frente al 89.3% para la técnica modificada. La causa principal de muestras insatisfactorias fue la celularidad insuficiente, la cual se presentó en el 6.7% de las muestras con técnica convencional frente al 12% de la técnica modificada, sin diferencia significativa entre ambas técnicas p = 0.575 (1.37; 0.45-4.1), hallazgos que rechazan la hipótesis de trabajo. Conclusiones: no hubo diferencia significativa al utilizar ambas pruebas, las muestras con calidad satisfactoria fueron similares entre ambas técnicas.

Background: Despite the fact that the Papanicolaou technique is the most effective method of prevention and detection of cervical cancer, the precision of this tool remains controversial; Because of this, there are medical and scientific efforts to improve the quality of the procedure. Objective: Compare the quality of sampling between the conventional and modified technique. Material and methods: Descriptive and comparative observational study in 150 cervical cytology samples (75 conventional technique samples and 75 in modified technique) in women aged 25 to 64 years. Demographic variables, characteristics of the cervix and quality of the sample were analyzed. Descriptive statistics and association measures were performed. Study with risk greater than the minimum. All participants signed an informed consent. Results: The quality of the sample was satisfactory in 92.0% for the conventional technique vs 89.3% for the modified technique. The main cause of unsatisfactory samples was insufficient cellularity 6.7% in conventional technique vs 12% of the modified technique, with no significant difference between both techniques p = 0.575 (1.37; 0.45-4.1), findings that reject the working hypothesis. Conclusions: There was no significant difference when using both tests, the samples with satisfactory quality were similar between both techniques.

Prevalencia de los Genotipos del Virus del Papiloma Humano en mujeres de 25 a 65 años / Prevalence of Human Papillomavirus Genotypes in women aged 25 to 65 years

Introducción: La infección que ocasiona el Virus del Papiloma Humano (VPH), tiene alta prevalencia en mujeres sexualmente activas. Generalmente es pasajera, pero al existir algunos factores relacionados pueden llegar a desarrollar cáncer cervicouterino. Dado que la enfermedad se desarrolla con lentitud la detección en etapas tempranas ha permitido poner en evidencia la presencia del virus en las células antes que puedan transformarse y volverse tumorigénicas. El objetivo de este estudio fue establecer la prevalencia de los genotipos del Virus del Papiloma Humano en mujeres de 25 a 65 años en un grupo de pacientes de un centro oncológico en Cuenca 2017 ­2018. Métodos:Es un estudio descriptivo, retrospectivo, analítico, en el cual se recopiló información de las historias clínicas y registros físicos del Laboratorio de Biología Molecular y del sistema médico de SOLCA -Cuenca, SOFTCASE, para establecer la prevalencia de VPH durante el periodo 2017 -2018.Se utiliza ODDS Ratio para demostrar asociación entre las variables demográficas y los grupos de serología de VPH de riesgo alto versus VPH De riesgo bajo. Resultados:Se incluyeron 594casos, con edad entre36 y 40 años n=103/594 (17.3%). De estado civil casadas n=318/594 (53.5%). Con paridad igual a 2 n=159/594 (26.8%). Casospositivos de VPH fueron 424/594 (71.38%) IC95% (71.23% a 71.53%), Genotipos de alto riesgo con el 58.01%, genotipos de probable bajo riesgo con el 33.25% y genotipos de bajo riesgo 8.72%. La prevalencia del 50% de la población positiva según el genotipo lo explicalos VPH 16, 71, 58, 6 y 31. De este grupo los VPH con serología 16, 58 y 31 tienen un riesgo Alto de malignidad. No se reportó asociación entre los VPH de alto riesgo con alguna de las variables demográficas. Conclusión:El grupo etario con mayor número de casos positivos perteneció a las mujeres de entre 36 y 40 años de edad, con paridad igual a 2 y de estado civil casadas. El subtipo VPH-16 fue el genotipo más prevalente del grupo de alto riesgo de malignidad. El subtipo VPH-71 fue el segundo genotipo más prevalente con un perfil de probable bajo riesgo de malignidad.

AbstractIntroduction:The infection caused by the Human Papilloma Virus (HPV) has a high prevalence in sexually active women. It is generally temporary, but when there are some related factors, they can develop cervical cancer. Since the disease develops slowly, detection in early stages has made it possible to reveal the presence of the virus in cells before they can transform and become tumorigenic. The objective of this study was to establish the prevalence of Human Papilloma Virus genotypes in women aged 25 to 65 years in a group of patients from an oncology center in Cuenca 2017-2018. Methods: It is a descriptive, retrospective, analytical study, in which information was collected from the medical records and physical records of the Molecular Biology Laboratory and the SOLCA -Cuenca medical system, SOFTCASE, to establish the prevalence of HPV during the period 2017 -2018. ODDS Ratio is used to demonstrate association between demographic variables and high-risk HPV versus low-risk HPV serology groups. Results: 594 cases were included, aged between 36 and 40 years, n = 103/594 (17.3%). Marital status married n = 318/594 (53.5%). With parity equal to 2 n = 159/594 (26.8%). Positive HPV cases were 424/594 (71.38%) 95% CI (71.23% to 71.53%), high risk genotypes with 58.01%, probable low risk genotypes with 33.25% and low risk genotypes 8.72%. The prevalence of 50% of the positive population according to genotype is explained by HPV 16, 71, 58, 6 and 31. Of this group, HPV with serology 16, 58 and 31 have a high risk of malignancy. No association was reported between high-risk HPV with any of the demographic variables. Conclusion: The age group with the highest number of positive cases belonged to women between 36 and 40 years of age, with parity equal to 2 and married marital status. The HPV-16 subtype was the most prevalent genotype in the group at high risk of malignancy. The HPV-71 subtype was the second most prevalent genotype with a profile of probable low risk of malignancy.

Supervivencia de pacientes con diagnóstico de Cáncer de Cérvix, estadios clínicos IIB-IIIA-IIIB. SOLCA ­Cuenca. 2009 -2013 / Survival of patients diagnosed with Cervical Cancer, clinical stages IIB-IIIA-IIIB. SOLCA -Cuenca. 2009 -2013

Introducción: Lasupervivencia de pacientes con Cáncer de Cérvix se influencia por los estadíos clínicos de laenfermedad y por su histología. El objetivo de este estudio fue establecer la supervivencia en un grupo depacientes deun centro oncológico en Cuenca-Ecuador. Métodos:Es un estudio descriptivo, retrospectivo, analítico, en el cual se recopiló información de las historias clínicas y registros físicos del sistema médico de SOLCA ­Cuencapara establecer la Supervivencia durante el periodo 2009-2013.Se describen variables variables demográficas y clínicas (Tipode histología y estadío), Se compara la supervivencia entre laspacientes con estas variables. Resultados:Se incluyeron 150casos,edad media de 57.1 ±14.0años. El estado civil más prevalente fue el "casada"n=75/150 (50%), de procedencia Urbanan=83/150 (55.3%)de la provincia del Azuay (48.0%). El tipo histológico más prevalente fue el Cáncer epidermoide (92%), 60% en estadío clínico IIB. Mortalidad de 7casos. SupervivenciaGlobal (SG) 57.6 meses; con un EE de 0.88 y un IC 95% con rango de 55.9 a 59.4meses.SG en el estadio IIB fue de58.4 meses(EE: 0.91; IC 95%:56.63 ­60.20). En el estadio IIIB fue de 56.3 meses(EE: 1.85; IC 95%: 52.71 ­59.96), no se encontró diferencia estadística (P= 0.45). La SGfue mayor en el carcinoma epidermoide (Media: 58.2 meses; EE: 0.79, IC 95%: 57.70 a 59.81) en relación a la variante adenocarcinoma (Media: 50.08 meses; EE: 6.26; IC 95%: 37.81 a 62.36), con significancia estadística (P=0.045). Conclusión:La supervivencia global fue de 57.6 meses, con diferencia de supervivencia para el tipo histológico, siendo el mayor para carcinoma epidermoide 8 meses menos para el adenocarcinoma. No hubo diferencias entre la supervivencia entre estadíos clínicos IIB y IIIB

Introduction: The survival of patients with Cervical Cancer is influenced by the clinical stages of the disease and its histology. The objective of this study was to establish survival in a group of patients from an oncology center in Cuenca-Ecuador. Methods: It is a descriptive, retrospective, analytical study, in which information was collectedfrom the medical records and physical records of the SOLCA -Cuenca medical system to establish Survival during the period 2009-2013. Demographic and clinical variables are described ( Type of histology and stage), Survival is compared between patients with these variables. Results: 150 cases were included, mean age of 57.1 ± 14.0 years. The most prevalent marital status was "married" n = 75/150 (50%), of urban origin n = 83/150 (55.3%) from the province of Azuay (48.0%). The most prevalent histological type was epidermoid cancer (92%), 60% in clinical stage IIB. Mortality of 7 cases. Overall Survival (OS) 57.6 months; with a SE of 0.88 and a 95% CI with a range of 55.9 to 59.4 months. OS in stage IIB was 58.4 months (SE: 0.91; 95% CI: 56.63 -60.20). In stage IIIB it was 56.3 months (SE: 1.85; 95% CI: 52.71 -59.96), no statistical difference was found (P = 0.45). OS was higher in squamous cell carcinoma (Mean: 58.2 months; SE: 0.79, 95% CI: 57.70 to 59.81) in relation to the adenocarcinoma variant (Mean: 50.08 months; SE: 6.26; 95% CI: 37.81 to 62.36), with statistical significance (P= 0.045). Conclusion: Overall survival was 57.6 months, with a survival difference for histological type, the longest being for squamous cell carcinoma 8 months less for adenocarcinoma. There were no differences between survival between clinical stages IIB and IIIB

Tracking of cellular atypes of the cut of uterus of women in Primary Care / Detección de las atipias celulares del cuello uterino en mujeres en la Atención Primaria / Rastreamento das atipias celulares de colo de útero em mulheres na Atenção Primária

ABSTRACT Objectives: to analyze the screening for cervical cell atypias in women assisted in Primary Care. Methods: quantitative, retrospective and cross-sectional study, with analysis of 190 medical records of women who had atypical results from the cervical cytopathological exam collection from 2012 to 2014. Results: the most frequent atypias found were possibly Non-neoplastic squamous (ASC-US, 57.4%) and Low-grade intraepithelial lesion (LSIL, 23.2%). The time elapsed between the exam and the result was 24 days. The professional's conduct after the result of the last cervical cytopathology was adequate for 51.1% of women. Conclusions: there is a need to improve the cervical cancer screening program and correctly target the atypia identified, aiming at the access of the target population for the diagnostic investigation and treatment of precursor lesions of cervical cancer.

RESUMEN Objetivos: analizar la detección de las atipias celulares del cuello uterino en mujeres asistidas en la Atención Primaria. Métodos: estudio cuantitativo, retrospectivo y transversal, con análisis de 190 historias clínicas de mujeres que presentaron atipias en el resultado de la recogida de examen histopatológico cervical en el período de 2012 a 2014. Resultados: las atipias más frecuentes encontradas han sido Escamosas posiblemente no neoplásicas (ASC-US, 57,4%) y Lesión intraepitelial de bajo grado (LSIL, 23,2%). El tiempo transcurrido entre la realización del examen y la llegada del resultado ha sido de 24 días. La conducta del profesional después del resultado de la última citopatología cervical ha sido adecuada para 51,1% de las mujeres. Conclusiones: hay necesidad de perfeccionar el programa de detección del cáncer del cuello uterino y de orientar correctamente las atipias identificadas, visando al acceso de la población objetivo para la investigación diagnóstica y tratamiento de las lesiones precursoras del cáncer de cuello uterino.

RESUMO Objetivos: analisar o rastreamento das atipias celulares de colo de útero em mulheres assistidas na Atenção Primária. Métodos: estudo quantitativo, retrospectivo e transversal, com análise de 190 prontuários de mulheres que apresentaram atipias no resultado da coleta de exame citopatológico cervical no período de 2012 a 2014. Resultados: as atipias mais frequentes encontradas foram Escamosas possivelmente não neoplásicas (ASC-US, 57,4%) e Lesão intraepitelial de baixo grau (LSIL, 23,2%). O tempo transcorrido entre a realização do exame e a chegada do resultado foi de 24 dias. A conduta do profissional após o resultado da última citopatologia cervical foi adequada para 51,1% das mulheres. Conclusões: há necessidade de aprimorar o programa de rastreamento de câncer de colo do útero e de direcionar corretamente as atipias identificadas, visando ao acesso da população-alvo para a investigação diagnóstica e tratamento das lesões precursoras do câncer de colo uterino.

Análise dos coeficientes de exames citopatológicos realizados e alterados no Paraná / Analysis of the coefficients of cytological examination performed and altered in Paraná / Análisis de los coeficientes de examenes citopatológicos realizados y cambios en Paraná

Objetivo: Analisar o comportamento dos coeficientes de exames citopatológicos realizados e alterados em mulheres Paranaenses no período de 2006 a 2014. Método: Estudo transversal do tipo ecológico, utilizou dados do Sistema de Informação do Câncer do Colo do Útero, segundo faixa etária de 15 a 59 anos. Foi calculada a razão entre o número de casos de câncer de colo uterino, segundo a faixa etária, e mulheres paranaenses da mesma faixa etária, divididos por 100.000. Resultados: Apresentaram-se segundo estatística descritiva, utilizando gráficos e tabelas. Mostraram um aumento de exames realizados nas faixas etárias 15-19 e 50-59 anos, e quedas nas centrais, 20-49 anos. Os exames alterados aumentaram no período estudado nas faixas de 15-19 e 30-49 anos, e caíram nas demais. Conclusão: O estudo evidencia uma mudança no perfil daquelas que procuram o exame citopatológico, com aumento da busca pelas jovens, assim como de exames alterados nas mesmas

Objective: Analyze the behavior of the coefficients of cytological examination performed and altered in women from Paraná between 2006 and 2014. Methods: Cross-sectional study of the ecological type used data from the Cervical Cancer Information System, according to the age range of 15 to 59 years old. The ratio between the number of cervical cancer cases according to age group and women of the same age group, divided by 100,000, was calculated. Results: Were presented according to descriptive statistics, using graphs and tables. Conclusion: There was an increase in the number of examples performed in the 15-19 and 50-59 age groups, and in the age group 20-49. The altered exams increased in the studied period in the groups 15-19 and 30-49 and fell in the others. The study evidences a change in the profile of those who seek the cytological examination, with an increase in the demand by the younger, as well as altered exams in the same ones

Objetivo: Analizar el comportamiento de los coeficientes del examen citológico realizado y alterado en mujeres de Paraná entre 2006 y 2014. Método: Estudio transversal del tipo ecológico utilizó datos del Sistema de Información del Cáncer Cervical, de acuerdo con el rango de edad de 15 a 59 años de edad. Se calculó la relación entre el número de casos de cáncer cervical según el grupo de edad y las mujeres del mismo grupo de edad, dividido por 100.000. Resultados: Se presentaron de acuerdo con estadísticas descriptivas, usando gráficos y tablas. Hubo un aumento en el número de exámenes realizados en los grupos de 15-19 y 50-59 años, y en los grupos de edad de 20-49. Los exámenes alterados aumentaron en el período estudiado en los grupos 15-19 y 30-49 años y disminuyeron en los otros. Conclusión: El estudio evidencia un cambio en el perfil de quienes buscan el examen citológico, con un aumento en la demanda por parte de los más jóvenes, así como también exámenes alterados en los mismos

Human Papilloma Virus genotypes in Type III cervical intraepithelial neoplasia. Cuenca­Ecuador, 2013-2017 / Genotipos del virus del papiloma humano en neoplasias intraepiteliales tipo III; Cuenca-Ecuador, 2013-2017

Cervical cancer is one of the most common cancers in female population worldwide in underdeveloped countries, and in Ecuador it stands out in second place. This research focuses on HPV-genotype description in type III-intraepithelial neoplasms. The study type was analytical, retrospective and cross-sectional. The sample was 195 patients with NIC III diagnosis, from 20 to 60 years old, who were in the data system of "Sociedad de Lucha Contra el Cancer" Cuenca­Ecuador, 2013-2017 term. It was established that HPV-16 genotype was in 32.9% (n 51) of all cases; factors like sociodemographic variables, tobacco use, infection, hormonal contraceptives use, more than one sexual partner, age of start of active sex life equal or less than 20 years old, didn´t show a relationship with HPV infection; on the other hand, IUD use and HPV-16 infection had a statically significant relationship (OR 2,75; CI 95% 1,21-6,26; p 0,01). HPV genotype HPV-16 was the most common, and IUD use was a risk factor to get HPV infection

El cáncer de cuello uterino, es uno de los cánceres más frecuentes en la población femenina a nivel mundial en países subdesarrollados, y en Ecuador ocupa el segundo lugar. Esta investigación se sitúa en la descripción de los genotipos del VPH en neoplasias intraepiteliales tipo III. El tipo de estudio fue analítico, retrospectivo y transversal. La muestra fueron 195 pacientes con diagnóstico de NIC III, de 20 hasta los 60 años de edad, que se encontraba en el sistema informático de la "Sociedad de Lucha Contra el Cáncer", Cuenca ­ Ecuador, periodo 2013 - 2017. Los datos fueron procesados a través del software SPSS 23.00. Se determinó que el genotipo VPH-16 estuvo en el 32,9% (n 51) de los casos; las variables sociodemográficas, consumo de tabaco, infecciones, uso de anticonceptivos hormonales, más de una pareja sexual, IVSA igual o menor de 20 años no presentaron relación a la infección por VPH; pero, el uso de DIU e infección por VPH-16 tuvo una relación estadísticamente significativa (OR 2,75; IC 95% 1,21-6,26; p 0,01). El genotipo de VPH-16 fue el más frecuente, y el uso de DIU fue un factor de riesgo para adquirir la infección por el VPH

Intraepithelial cervical lesions in indigenous in Ecuador / Lesiones intraepiteliales cervicales en indígenas del Ecuador

The aim of this research was to determine the prevalence of cervical intraepithelial lesions in indigenous women of Ecuador 2017. A descriptive study was performed. Population was formed by 2489 indigenous women aged 15 to 64 years old, of which 396 users were chosen by spontaneous demand. Frequency values and percentages were taken from qualitative variables, while mean and standard deviation were taken from quantitative variables. Prevalence of intraepithelial lesions was 13,8%. Average age was 31 years old. Uncertain importance's squamous atypical cells were higher in 30-to-39-year-old group (46,7%). Non-specific atypical glandular cells were observed in 66,7% of 30-to-39-year-old group. Low-grade intraepithelial lesions were majorly found in 20-to-29-year-old group (43,8%). High-grade intraepithelial lesions were also seen in 20-to-29-year-old group. Conclusions were: prevalence of intraepithelial lesions in indigenous women of Ecuador was higher than 10% of reported in other studies, and more frequent in those aged 20 and 39 years old

El objetivo de esta investigación fue determinar la prevalencia de lesiones intraepiteliales cervicales en mujeres indígenas del Ecuador 2017. Se realizó un estudio descriptivo. La población estuvo compuesta por 2489 mujeres indígenas de 15 a 64 años, de las cuales 396 usuarias fueron elegidas por demanda espontánea. De las variables cualitativas se obtuvieron los valores de frecuencia y porcentajes, y de las cuantitativas la media y la desviación estándar. La prevalencia de las lesiones intraepiteliales fue del 13,8%. La edad promedio fue 31 años. Las células escamosas atípicas de importancia incierta fueron mayores en el grupo de edad de 30 a 39 años (46,7%). Se observaron células atípicas glandulares no específicas en el 66,7% en el grupo de 30 y 39 años de edad. Las lesiones intraepiteliales de bajo grado se presentaron más en el grupo de 20 y 29 años (43,8%). Las lesiones intraepiteliales de alto grado se identificaron también en el grupo de 20 a 29 años de edad. Las conclusiones fueron: la prevalencia de lesiones intraepiteliales en las mujeres indígenas del Ecuador fue superior al 10% de las reportadas en otros estudios, y más frecuente en aquellas de 20 y 39 años de edad

Risk of cervical dysplasia among human papillomavirus-infected women in Korea: a multicenter prospective study / 부인종양

OBJECTIVE: Human papillomavirus (HPV) infection is the most important risk factor for cervical cancer, which progresses from precursor lesions with no symptom if left untreated. We compared the risk of cervical dysplasia among HPV-positive Korean women based on HPV types and infection patterns. METHODS: We observed participants of a 5-year multicenter prospective cohort study, comprising HPV-positive women with either atypical squamous cells of undetermined significance or low-grade squamous intraepithelial lesion of the cervix at their enrollment. Follow-ups, comprising cytology and HPV DNA testing results, were included in the final analysis. Incidence was calculated for each infection pattern (persistent infection, incidental infection, and clearance). To investigate cervical dysplasia risk, we used Cox proportional hazard models adjusted for variables that were significantly different among infection patterns. From April 2010 to September 2017, 71 of 1,027 subjects developed cervical dysplasia more severe than high-grade squamous intraepithelial lesion of the cervix. RESULTS: Of these 71 subjects, persistent infection, incidental infection, and clearance were noted in 30, 39, and 2 individuals, respectively. Based on changes in DNA results during follow-up, cumulative incidence was 27.2%, 10.4%, and 0.5% for persistent infection, incidental infection, and clearance, respectively. Compared to clearance, the adjusted hazard ratios for cervical dysplasia were 51.6 and 24.1 for persistent and incidental infections, respectively (p < 0.001). CONCLUSION: Individuals persistently infected with the same HPV types during the follow-up period had the highest risk of severe cervical dysplasia. Hence, it is necessary to monitor HPV types and infection patterns to prevent severe cervical precancerous lesions.

Prevalência da infecção pelo Papilomavírus Humano (HPV) em mulheres do sudeste do Estado do Pará / Prevalence of human Papillomavirus Infection (HPV) in females from the southeastern region of the State of Pará, Brazil

Investigar a prevalência da infecção pelo Papilomavirus humano (HPV) em mulheres do município de Jacundá (PA) e fatores de risco para esta infecção. Estudo observacional, descritivo e analítico, do tipo transversal com coleta em prontuários de mulheres atendidas no Hospital Municipal e consultório particular de ginecologia, oriundos de Jacundá entre 2015 e 2016. Aplicou-se análise descritiva pelo programa Epi Info 3.5.1 e BioEstat 5.0. Dos 235 prontuários, 36,6% possuíam HPV e aquelas com 45 anos ou mais possuíam maior prevalência desta infecção (40,3%). Quanto à citologia, 28,9% possuíam alguma alteração. E somente as variáveis escolaridade, etilismo e citologia alterada possuíam associação significante, exclusivamente para as de 26 a 44 anos, sendo variáveis consideradas como fatores de risco para aquisição e manutenção viral. Assim, houve alta prevalência de HPV na região (45 anos ou mais) com fatores de risco relacionados à escolaridade, ao etilismo e às alterações na citologia cervical, na faixa etária de 26 a 44 anos.

The prevalence of infection by human papillomavirus (HPV) in females of Jacundá PA Brazil and its risk factors are discussed. Current observational, descriptive, analytic and transversal study of clinical charts of females from the municipality of Jacundá and attended to in the Municipal Hospital and private clinic was undertaken between 2015 and 2016. Descriptive analysis was applied by programs Epi Info 3.5.1 and BioEstat 5.0. Further, 36.6% of people in 235 charts had HPV; females aged 45 years or more had the greatest prevalence (40.3%) of the infection; 28.9% had alterations in cytology. Variables such as schooling, alcoholism and altered cytology had significant association, exclusively for people between 26 and 44 years old. They are variables considered to be risk factors for the acquisition and maintenance of the virus. High prevalence of HPV occurred in the region (with 45 years old and older) with risk factors related to schooling, alcoholism and cervix cytology changes in the 26-44 years age bracket.

Clinical management of the first ASCUS report in Chile. Prospective single-cohort study / Manejo clínico do primeiro relatório ASCUS no Chile. Estudo prospectivo de coorte única

ABSTRACT CONTEXT AND OBJECTIVE: Worldwide, there is no single strategy for optimal management of patients with ASCUS (atypical squamous cells of undetermined significance) cytology reports. The objective of this study was to determine the kind of clinical management conducted among women with a first ASCUS Pap smear report. DESIGN AND SETTING: Prospective single cohort study at a cervical pathology unit in Santiago, Chile. METHODS: This was an epidemiological, descriptive, observational and quantitative follow-up study on a cohort of women with ASCUS cytological reports. RESULTS: In the screening phase, 92,001 cervical cytological smears were collected in primary healthcare clinics. In the diagnostic phase, all women with a first ASCUS report were selected (n = 446). These women were asked to undergo the Pap test again and it was found that 301 women had normal results, 62 women had abnormal results and 83 did not repeat the test. In the diagnostic confirmation phase, the 62 women with abnormal results underwent colposcopy and, from these results, 58 of them underwent a biopsy. The results from the biopsies showed that 16 women had negative histological reports, 13 had CIN 1 and 29 had CIN 2+. In the treatment phase, the 42 women with lesions underwent a variety of treatments, according to the type of lesion. In the post-treatment phase, cytological and colposcopic monitoring was instituted. CONCLUSION: The clinical management consisted of traditional management of screening, diagnosis, diagnostic confirmation, treatment and post-treatment monitoring.

RESUMO CONTEXTO E OBJETIVO: Mundialmente, não existe estratégia única para o gerenciamento ideal de pacientes com laudos de citologia ASCUS ( atypical squamous cells of undetermined significance ). O objetivo do estudo foi determinar o tipo de gerenciamento clínico realizado em mulheres com o primeiro laudo de Papanicolaou ASCUS. DESENHO E LOCAL: Estudo prospectivo de coorte única em uma unidade de patologia cervical em Santiago, Chile. MÉTODOS: Estudo epidemiológico, descritivo, observacional e quantitativo de seguimento de um grupo de mulheres com laudos de citologia ASCUS. RESULTADOS: Na fase de rastreamento, 92.001 relatórios de citologia cervical foram coletados nos ambulatórios da rede pública de saúde. Na fase de diagnóstico, foi selecionada a totalidade de mulheres com relatórios citológicos de ASCUS (n = 446). Essas mulheres foram submetidas a repetição do exame de Papanicolaou, obtendo-se 301 mulheres com resultados normais, 62 mulheres com resultados anormais e 83 que não repetiram o exame. Na fase de confirmação de diagnóstico, as 62 mulheres com resultados anormais foram submetidas a colposcopia e, considerando-se os resultados obtidos, 58 foram submetidas a biópsia. Os resultados das biópsias mostraram 16 mulheres com laudos histológicos negativos, 13 com NIC 1 e 29 com NIC 2 +. Na fase terapêutica, as 42 mulheres com lesões foram submetidas a diversos tratamentos de acordo com o tipo de lesão. Para a fase pós-tratamento, foi instituído um sistema de monitoramento citocolposcópico. CONCLUSÃO: As condutas clínicas tiveram gestão tradicional de rastreamento, diagnóstico, confirmação diagnóstica, tratamento e acompanhamento pós-tratamento.

Impact of age on the false negative rate of human papillomavirus DNA test in patients with atypical squamous cells of undetermined significance

OBJECTIVE: Human papillomavirus (HPV) test was incorporated into the triage of lesser abnormal cervical cytologies: atypical squamous cells of undetermined significance (ASCUS) or low-grade squamous intraepithelial lesion (LSIL). This study aimed to evaluate the impact of age on the efficacy of HPV testing in patients with lesser abnormal cervical cytologies. METHODS: A total of 439 patients with ASCUS or LSIL were included. The association between age groups and the diagnostic performances of HPV test for high-grade cervical intraepithelial neoplasia (CIN2+) was evaluated. RESULTS: Median age was 44 years (range, 17 to 75 years). ASCUS was more frequently observed in older patients while LSIL was more common in younger patients (P=0.002). CIN2+ was found in 11.3% (32/284) of the ASCUS patients and 12.9% (20/155) of patients with LSIL. Older patients with ASCUS showed lower HPV infection rates (P=0.025), but not LSIL (P=0.114). However, the prevalence of CIN2+ was similar between the age groups with ASCUS or LSIL. In patients with ASCUS, the false negative rate of HPV test for CIN2+ was 6.2%. The false negative rate of the HPV test became higher with increasing of the age after the age of 50 (P=0.034). CONCLUSION: Our findings suggest that false negative rate of the HPV test for CIN2+ in ASCUS patients older than 50 years might become higher with increasing of the age. Negative HPV results in patients of the age >50 years with ASCUS should be carefully interpreted.

The clinical performance of APTIMA human papillomavirus and Hybrid Capture 2 assays in the triage of lesser abnormal cervical cytologies / 부인종양

OBJECTIVE: This study was performed to evaluate the clinical performance of APTIMA human papillomavirus (AHPV) assay and Hybrid Capture 2 (HC2) assay in screening for cervical disease, especially in women with atypical squamous cell of undetermined significance (ASC-US) and low-grade squamous intraepithelial lesion (LSIL). METHODS: A total of 411 women diagnosed with ASC-US or LSIL were referred and further triaged by HC2 test. Prior to colposcopy, liquid-based cytology specimens were collected for the AHPV assay. Sensitivity and specificity were established based on the histological findings of cervical intraepithelial neoplasia (CIN). RESULTS: In all 411 subjects, the positive detection rate of AHPV assay was 70.8% (95% confidence interval [CI], 66.4 to 75.2), which was significantly lower than the positive detection rate of 94.9% obtained using HC2 test (95% CI, 92.3 to 96.8). Only one CIN 3-positive case was detected among the 120 AHPV-negative women, which was then confirmed by Pap smear test to be LSIL. The sensitivities of AHPV and HC2 for CIN 3 were similar (94.1% and 100%, respectively). However, AHPV showed a significantly higher specificity than HC2 test (30.2% and 5.3%, respectively; p<0.001). CONCLUSION: AHPV assay is effective in identifying CIN 3-positive cases because of its high specificity and lower false-negative rate. The use of AHPV for the triage of ASC-US and LSIL might help to reduce the referral rate of colposcopy during cervical cancer screening.

Performance of a low cost magnifying device, magnivisualizer, versus colposcope for detection of pre-cancer and cancerous lesions of uterine cervix / 부인종양

OBJECTIVE: To assess the performance of a low cost magnifying device (Magnivisualizer) compared to a standard optical colposcope for detection of precancerous and cancerous lesions of the uterine cervix. METHODS: A total of 659 consecutive symptomatic women attending a gynecologic outpatient clinic underwent unaided visual inspection followed by cytology, visual inspection of the cervix using 5% acetic acid (VIA), and VIA under magnification (VIAM) with the Magnivisualizer. All women, independently of test results, were referred for colposcopic examination. Colposcopic-directed biopsies were obtained from all positive lesions and compared to positive VIAM cases. RESULTS: The detection rate for VIA positive lesions was 12% (134/659), while it was 29% for VIAM positive lesions (191/659). The sensitivities of detection of cervical intraepithelial neoplasia (CIN) 2 and higher lesions were 61.7% for VIA, 88.3% for VIAM, and 86.7% for colposcopy, with a specificity of 58.5% for VIA, 55.8% for VIAM, and 90.4% for colposcopy. The performance of colposcopy and VIAM was moderate (kappa, 0.48; 95% confidence interval [CI], 0.41 to 0.54) for detection of CIN 1 and higher lesions and excellent (kappa, 0.87; 95% CI, 0.82 to 0.94) for detection of CIN 2 and higher lesions. CONCLUSION: In low resource settings, where colposcopic facilities are not available at the community level, a simple low-cost, handheld Magnivisualizer can be considered a valid option for detection of cervical precancerous and cancerous lesions. However, it cannot replace traditional colposcopy because it has a low specificity that results in many unnecessary biopsies.

Predictors of Follow-up Screening in Women with Abnormal Pap Smears

PURPOSE: This descriptive study was to identify predictors of follow-up screening among Korean women with low-grade abnormal Papanicolaou smears. METHODS: This study was conducted among 158 eligible women with atypical squamous cells of undetermined significance (ASC-US) or low-grade squamous intraepithelial lesion (LSIL) on Pap smear tests from the out-patient department at an academic hospital. Data were collected on self-report questionnaires including demographics, beliefs, knowledge and psychosocial distress. Multivariate logistic regression was used to identify independent factors association with follow-up. RESULTS: Of the 158 women with abnormal Pap smear results, 60.8% completed the recommended follow-up within 6months, and 39.2% did not. In multivariate analysis, attendance of follow-up was significantly increased with good explanation from health care providers (OR=4.89, 95% CI=1.96-12.13), having intention to follow-up (OR=7.96, 95% CI=1.88-33.65), increasing perceived benefit (OR=1.91, 95% CI=1.21-2.99) and decreasing perceived barriers (OR=1.41, 95% C I=1.13-1.74). CONCLUSION: Despite increasing rates of cervical cancer screening, pervasive problems in the adherence of follow-up of abnormal findings continue. We suggest more intensive interventions including good explanations by health care providers, educational programs for follow-up care and individualized implementations depending on barriers.

Prevalencia y factores asociados al resultado anormal de la citología vaginal en estudiantes universitarias en Bucaramanga, Colombia / Prevalence and factors associated with abnormal cytology result in female College Students in Bucaramanga, Colombia

Objetivo: Identificar la frecuencia de anormalidad en el reporte de la citología y sus factores asociados en estudiantes atendidas en los Servicios de Salud de Bienestar Universitario de la Universidad Industrial de Santander. Métodos: Estudio de corte transversal, incluyó 1 549 registros de estudiantes que se tomaron la citología en el Servicio de Salud de la División de Bienestar Universitario de la Universidad Industrial de Santander en el periodo de Enero de 2009 a Diciembre de 2011 y cuyo resultado y variables de estudio estuviesen almacenados en el sistema de información de los Servicios de Salud de Bienestar Universitario. Fue determinada la prevalencia de anormalidad en los resultados de la citología y por medio de análisis multivariados fueron explorados los factores asociados a dicho reporte citológico. Resultados: La prevalencia de anormalidad fue de 17,8 %. La anormalidad fue más frecuente en mujeres con antecedentes de embarazo, sexarquia temprana y con dos o más compañeros sexuales. Permanecieron asociadas al reporte de anormalidad después de ajustar: el número de compañeros sexuales y la sexarquia. Discusión: Existe un aumento de la prevalencia de anormalidad en los resultados citológicos de la población universitaria. Son necesarias estrategias de prevención sobre el cáncer de cuello uterino haciendo énfasis en sus principales factores de riesgo y en la citología como medio de tamizaje para la detección temprana.

Objective: To identify the frequency of abnormal cytology reports and associated factors in students that attended the Health Service University Welfare Divisionof the Universidad Industrial de Santander. Methods: Cross-sectional study that included 1 549 records of students who had a cytology in the Health Service University Welfare Division of the Universidad Industrial de Santander during the period extending from January 2009 to December 2011 and whose results and variables of study were stored in the information system at the Health Services University Welfare. The prevalence of abnormal cytology results was determined and through multivariate analysis the factors associated with this cytological report were explored. Results: The prevalence of abnormality was 17,8 %. The abnormality was more frequent in women with a history of pregnancy, early first sexual intercourse and with two or more sexual partners. After adjusting, the number of sexual partners and age of first sexual intercourse remained associated to the report of abnormality. Discussion: There is an increased prevalence of abnormal cytology results in the university population. Prevention strategies are needed for cervical cancer with emphasis on its main risk factors and cytology as a means of screening for early detection.

Determinantes da detecção de atipias celulares no programa de rastreamento do câncer do colo do útero no Rio de Janeiro, Brasil / Determinants of cellular atypia detection in the cervical screening program in Rio de Janeiro, Brazil

OBJETIVO: Identificar os principais determinantes da detecção de atipias celulares no programa de rastreamento do câncer do colo do útero no Estado do Rio de Janeiro, utilizando os dados do Sistema de Informação do Câncer do Colo do Útero (SISCOLO). MÉTODOS: Uma amostra aleatória de 65 535 exames citopatológicos realizados em 2007 foi obtida do SISCOLO. Essa amostra foi utilizada para construir um modelo de regressão logística que identificasse variáveis com impacto no processo de detecção de atipias celulares. Foi aplicada uma curva ROC para definir o ponto de corte mais adequado para classificar a presença ou a ausência de atipias. Uma análise de sensibilidade foi realizada para avaliar o impacto dos fatores relacionados à organização do serviço no modelo. RESULTADOS: As variáveis preditoras do modelo foram: "laboratório de referência", que reflete a escala de produção do laboratório; "presença de elementos celulares representativos da zona de transformação", que reflete a qualidade da coleta de amostras; "metaplasia escamosa imatura", "presença de outras alterações celulares benignas" e "ausência de microrganismos da microbiota vaginal". A cada acréscimo de 1 ano na idade da mulher, houve redução de 1,7% na chance de detecção de atipias. A curva ROC definiu o ponto de corte de 4,5%, que permitiu a maximização da sensibilidade (73,0%) e especificidade (66,8%) do modelo. A análise de sensibilidade indicou aumento da frequência de atipias de 46,4% quando simulou-se aumento na participação do laboratório de referência (42,9%) e na presença de elementos celulares representativos da zona de transformação (43,0%). CONCLUSÕES: O modelo revelou que a detecção de atipias celulares é fortemente influenciado por fatores organizacionais, como adequabilidade da lâmina e porte do laboratório de análise. Considerando que esses fatores são passíveis de alteração pelos gestores, o modelo pode ser uma importante ferramenta na melhoria dos programas de rastreamento.

OBJECTIVE: To identify the main determinants of cellular atypia detection in the cervical screening program in the state of Rio de Janeiro, Brazil, using data from the Cervical Cancer Information System SISCOLO. METHODS: A random sample of 65 535 Pap smears performed in 2007 was obtained from SISCOLO. This sample was used to produce a logistic regression model to identify variables that impact the process of detecting cellular atypia. A ROC curve was used to define the most suitable cutoff point to classify the presence or absence of atypia. A sensitivity analysis was performed to assess the impact on the model of factors related to the organization of the service model. RESULTS: The variables of impact were "reference laboratory," which reflects laboratory production scale; "presence of cellular elements representative of the transformation zone," which reflects the quality of the sampling; "immature squamous metaplasia," "presence of other benign cellular changes," and "absence of typical vaginal microorganisms." Each increase of 1 year in age was associated with a 1.7% reduction in the chance of detecting atypia. The ROC curve defined a cutoff of 4.5%, which allowed the maximization of the model's sensitivity (73.0%) and specificity (66.8%). Sensitivity analysis indicated an increase of 46.4% in the frequency of atypia following a simulated increase in the number of samples analyzed in the excellence (42.9%) and in the presence of cellular elements representative of the transformation zone (43.0%). CONCLUSIONS: The model revealed that the detection of atypical cells is strongly influenced by organizational factors such as adequate sample collection and laboratory size. Because these factors can be changed by adequate management practices, the proposed model may be an important tool to improve cervical screening programs.

Impacto do rastreamento do câncer do colo do útero na prevalência de resultados citológicos / Impact of cervical cytology screening on the prevalence of cervical cytological results

Introdução: O exame citológico ainda é o método de rastreamento mais utilizado para a prevenção do câncer do colo do útero. Apesar da sua alta eficiência na prevenção do carcinoma escamoso invasivo, esses benefícios não são tão claros para as lesões escamosas em mulheres jovens e para o adenocarcinoma invasivo. Além disso, esse efeito protetor varia de acordo com o intervalo de realização dos controles. Uma vez que o teste de HPV não é recomendado para mulheres com menos de 30 anos de idade, a avaliação cuidadosa do desempenho do rastreamento neste grupo etário pode auxiliar os médicos a selecionar criteriosamente aquelas que irão ser encaminhadas para prosseguimento diagnóstico. OBJETIVO: Avaliar o impacto do rastreamento do câncer do colo do útero na prevalência dos resultados citológicos em função da idade da mulher e do intervalo entre os controles. MÉTODOS: Foi analisado o banco de dados de um laboratório central de citopatologia. O estudo incluiu 2.002.472 testes obtidos de mulheres previamente rastreadas e 217.826 testes obtidos de mulheres não previamente rastreadas. A Razão de Prevalência (RP) com um intervalo de confiança de 95% foi calculada para os resultados de testes de mulheres rastreadas em relação aos testes de mulheres não rastreadas, em função da idade. O laboratório utiliza o Sistema de Bethesda desde 1998, mas ainda subdivide o resultado Lesão Intraepitelial de Alto Grau (HSIL) em dois níveis: HSIL-CIN 2 e HSIL-CIN 3. RESULTADOS Para HSIL, a RP dos testes de mulheres rastreadas em relação aos testes de mulheres não rastreadas foi de 0,97 (0,83-1,13) em mulheres abaixo de 20 anos e 0,99 (0,86-1,14) para mulheres entre 20 e 24 anos, diminuindo significativamente em mulheres entre 25 e 29 anos (RP 0,63, 0,52-0,76)...

Background Cervical cytology still is the cervical cancer screening test for women more used. Even though there is no doubt about the impact of cytology screening on invasive squamous cervical cancer, this issue is not as clear for squamous lesions on young women and for invasive adenocarcinoma. Moreover this protective effect varies according to interval tests. HPV testing is not recommended for women under age 30, and the carefully analysis of the performance of screening on this age group can help physicians to qualify their approach. OBJECTIVE To evaluate the impact of cervical cytology screening on the prevalence of cervical cytological results in women, as a function of age and the interval between tests. METHODS A central cytopathology laboratory database for cervical screening was analyzed. It included cytology screening data of 2.002.472 tests obtained from previously screened women and 217.826 tests from unscreened women. A prevalence ratio (PR) with a 95% confidence interval for screened women was calculated, in relation to unscreened women, as a function of age. The laboratory has been using the Bethesda System since 1998, but maintain the sub-categorization of HSIL in two levels: HSIL-CIN 2 and HSIL-CIN 3. RESULTS For high-grade squamous intraepithelial lesion (HSIL), the PR was 0.97 (0.83-1.13) for women aged 20 or younger and 0.99 (0.86-1.14) for women aged 20-24 years, decreasing significantly in women aged 25-29 years (PR 0.63, 0.52-0.76). The PR for squamous cell carcinoma (SCC), adenocarcinoma in situ (AIS) and invasive adenocarcinoma showed a significant reduction in all age groups over 30 years. For the age group ranging from 30-59 years, protection conferred by screening for SCC, AIS and invasive adenocarcinoma was 83% or higher for screening intervals ranging from 1-5 years. For 5-year intervals or longer, the protective effect offered for SCC was 50%...

Human papillomavirus and infections of the lower genital tractin women with abnormal cervical cytological examination / Papilomavírus humano e infecções do trato genital inferior em mulheres comexame colpocitológico anormal

Aims: To study the associations of positive human papillomavirus (HPV) DNA in the female genital tract with Gardnerella vaginalis, Trichomonas vaginalis and Candida sp. vaginitis, and with possible socio-demographic risk factors for HPV infections.Methods: The study was conducted with 208 patients with abnormal cervical cytological examination assisted at the Gynecology Service of Central Clinic of Caxias do Sul University, Rio Grande do Sul, Brazil, analyzing the presence of HPV DNA by polymerase chain reaction and associating the results to diagnosis of vaginal infections obtained from the medical charts of the patients.Results: HPV DNA was detected in 60.1% of all cases analyzed; 93% of them presented simple infections and 6.9% showed multiple infections. Seventeen viral types were identified, being HPV16 the most frequent (38.8%). At least one of the vaginitis investigated was observed in 57,2% of the patients. Gardnerella vaginalis was found in 45.7%, Candida sp. in 20.2%, and Trichomonas vaginalis in 3.8% of the patients examined. No statistical association between the presence of HPV DNA and other infection of the lower genital tract or socio-demographic risk factors was observed.Conclusions: No association of HPV infection with other infections of the female genital tract or with socio-demographic features could be found. Multiple infections with up to five types of HPV were observed in a low percentage of women. It is difficult to clearly define a group at high risk for HPV infection. All women with abnormal cervical cytological examination are possible carriers of HPV and other infections of the lower genital tract.

Objetivos: Estudar as associações da positividade para o DNA de papilomavírus humano (HPV) no trato genital inferior feminino com as vaginites por Gardnerella vaginalis, Candida sp. e Trichomonas vaginalis e com a presença de possíveis fatores de risco para infecção por HPV.Métodos: O estudo foi realizado com 208 pacientes com exame colpocitológico anormal atendidas no Serviço de Ginecologia do Ambulatório Central da Universidade de Caxias do Sul analisando a presença do DNA de HPV através de reação em cadeia da polimerase e associando os resultados aos diagnósticos de infecção vaginal obtidos nos prontuários das pacientes.Resultados: Foi detectado DNA de HPV em 60,1% de todos os casos analisados , sendo que 93% apresentaram infecções simples e 6,9 % apresentaram infecções múltiplas. Dezessete tipos virais foram identificados, sendo HPV16 o mais frequente (38,8%). Pelo menos uma das vaginites investigadas foi observada em 57,2% dos pacientes. Gardnerella vaginalis foi encontrada em 45,7%, Candida sp. em 20,2%, e Trichomonas vaginalis em 3,8% das pacientes examinadas. Não foi observada nenhuma associação estatística entre a presença do DNA de HPV e outras infecções do trato genital inferior ou fatores sociodemográficos de risco.Conclusões: Não houve associação da infecção pelo HPV com outras infecções do trato genital feminino nem com características sociodemográficas. Múltiplas infecções com até cinco tipos de HPV foram observadas em uma pequena parcela das mulheres. É difícil definir claramente um grupo de risco para a infecção por HPV. Todas as mulheres com exame colpocitológico anormal são possíveis portadoras do HPV e de outras infecções do trato genital inferior.