Genotipos del Virus del Papiloma Humano en citología alterada del cuello uterino / Human Papillomavirus genotypes in altered cervical cytology / Genótipos do papilomavírus humano em citologia cervical alterada

En Ecuador el cáncer de cuello uterino se ubica en el segundo lugar y, está relacionada a una infección genital persistente por el virus del papiloma humano (VPH) de alto riesgo. Objetivo general: determinar la relación entre virus del papiloma humano de alto riesgo y las lesiones intraepiteliales del cuello uterino, en mujeres de 21 a 65 años en tres cantones de la provincia de El Oro, periodo 2019. Se trata de un estudio de tipo descriptivo relacional de corte transversal. Se realizó el estudio en 109 mujeres que cumplieron los criterios de inclusión. Para la relación de las variables se utilizó los estadísticos del Chi cuadrado (con valor de p 0,05) y, la lesión más frecuente fue el de células escamosas atípicas de importancia no determinada. Se concluye que las lesiones intraepiteliales fueron más frecuentes que las reportadas en la literatura como general, y los genotipos 39, 16, 18 estuvieron presentes en las lesiones intraepiteliales de bajo grado del cuello uterino.

In Ecuador, cervical cancer is in second place and is related to persistent genital infection by high-risk human papillomavirus (HPV). General objective: to determine the relationship between high-risk human papillomavirus and cervical intraepithelial lesions in women aged 21 to 65 years in three cantons of the province of El Oro, period 2019. This is a descriptive relational cross-sectional study. The study was conducted in 109 women who met the inclusion criteria. Chi-square statistics (with p value 0.05) and the most frequent lesion was atypical squamous cell of undetermined significance. It is concluded that intraepithelial lesions were more frequent than those reported in the literature in general, and genotypes 39, 16, 18 were present in low-grade intraepithelial lesions of the cervix.

O câncer cervical é a segunda principal causa de câncer cervical no Equador e está relacionado à infecção genital persistente por papilomavírus humano de alto risco (HPV). Objetivo geral: determinar a relação entre papilomavírus humano de alto risco e lesões intra-epiteliais do colo uterino em mulheres de 21 a 65 anos de idade em três cantões da província de El Oro, período 2019. Este é um estudo descritivo, transversal e relacional. O estudo foi conduzido em 109 mulheres que preenchiam os critérios de inclusão. As estatísticas qui-quadradas (com valor p 0,05) e a lesão mais freqüente foi a célula escamosa atípica de importância indeterminada. Conclui-se que as lesões intra-epiteliais eram mais freqüentes do que as relatadas na literatura em geral, e os genótipos 39, 16, 18 estavam presentes em lesões intra-epiteliais de baixo grau do colo uterino.

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.

Caracterización de los genotipos frecuentes del virus del papiloma humano en mujeres atendidas en los hospitales Monte Sinai y del Seguro Social Cuenca- Ecuador. 2008- 2014 / Characterization of the frequent genotypes of the human papilloma virus in women treated at Hospital Monte Sinai and Seguro Social Cuenca-Ecuador. 2008-2014

OBJETIVO: Determinar la prevalencia de los genotipos del papiloma virus humano en muestras cérvico-uterinas y su relación con los factores de riesgo en mujeres con vida sexual activa de la ciudad de Cuenca. METODOLOGÍA: Estudio observacional de tipo transversal con una muestra de 500 mujeres del cantón Cuenca de los Hospitales Monte Sinai y del Instituto Ecuatoriano de Seguridad Social (IESS). Los exámenes se realizaron en el laboratorio de Biología Molecular BIONCOGEN de la ciudad de Cuenca y se utilizó la técnica de PCR en Tiempo Real más el examen de Papanicolaou. RESULTADOS: La prevalencia del VPH fue de 78.4% y el genotipo más frecuente es el HPV 16 con el 26,2%. El NIC I con el 27% constituye la patología ginecológica más frecuente. CONCLUSIÓN: Los genotipos 16 /18 representan los tipos de VPH que están relacionados directa-mente con el desarrollo de cáncer cérvico uterino ya que al correlacionar con la citología (Papani-colau) se demuestra que la célula sufre cambios morfológicos (coilocitosis).

OBJECTIVE: To determine the prevalence of hu-man papilloma virus genotypes in cervical-uterine samples and their relation to risk factors in women with active sex life in Cuenca. METHODOLOGY: It is a cross-sectional observatio-nal study with a sample of 500 women from Cuen-ca who were attended in the Monte Sinai Hospi-tal and the Ecuadorian Institute of Social Security (IESS). The exams were carried out in the BIONCO-GEN Molecular Biology Laboratory which is loca-ted in Cuenca. The Real Time PCR technique plus the Pap examination were used. RESULTS: The prevalence of HPV was 78.4 % and the most frequent genotype was the HPV 16 with 26.2 %. On the other hand, the CIN I with 27% is the most frequent gynecological pathology. CONCLUSION: The genotypes 16/18 represent the types of HPV that are directly related to the de-velopment of cervical cancer because when it is correlated with cytology (Pap) it is demonstrated that the cell undergoes morphological changes (koilocytosis).Keywords: Genotype, Human papillomavirus 16, Human papillomavirus 18, Clinical Laboratory Te-chniques, PCR; Risk factors; Monte Sinai Hospital, Hospital of the Ecuadorian Institute of Social Secu-rity, Cuenca-Ecuador.

Comparação da prevalência do HPV-16 em pacientes com carcinoma espinocelular de boca e lesões potencialmente malignas bucais / Comparison of the HPV-16 prevalence in patients with oral squamous cell carcinoma and oral potentially malignant disorders

O papilomavírus humano (HPV) subtipo 16 é um fator de risco para o desenvolvimento do carcinoma espinocelular (CEC) de orofaringe. No entanto, o papel do mesmo na carcinogênese oral, bem como a associação com as lesões potencialmente malignas, permanece controverso. O objetivo deste estudo foi comparar a prevalência do HPV-16, em amostras de tecido fresco, obtidas de 27 pacientes com CEC oral, 37 pacientes com leucoplasia bucal, 24 pacientes com líquen plano bucal (LPB) e 32 pacientes controle, correlacionando a presença do HPV com as variáveis clínico-patológicas em uma população da região noroeste do estado de São Paulo - Brasil. Realizouse a extração do DNA das amostras e a verificação da presença do HPV-16 por meio da Real-Time Polymerase Chain Reaction. Todas as amostras foram negativas para o HPV-16 nos quatro grupos estudados. Conclui-se que a ausência do HPV-16 nas amostras de CEC bucal, leucoplasia e LPB indica que a infecção pelo mesmo não é comum e não representa um fator de risco importante na carcinogênese oral na população da região noroeste do estado de São Paulo ­ Brasil(AU)

Human Papillomavirus (HPV), specially subtype 16, is a known risk factor for the oropharyngeal squamous cell carcinoma (SCC) development. However, HPV role in oral carcinogenesis, as well as in potentially malignant oral lesions remains controversial. The goal of the present study was to compare the HPV16 prevalence, in fresh tissue samples obtained from 27 oral SCC patients, 34 oral leukoplakia (OL) patients, 24 oral lichen planus (OLP) patients and 32 control patients, correlating HPV presence with the clinicopathological variables in a population from northwest region of the Sao Paulo state - Brazil. DNA extraction was carried out and all samples were submitted to Real-Time PCR for HPV-16 DNA detection. We found that all fresh tissue samples of oral SCC, OL, OLP and oral normal mucosa were negative for HPV-16. We conclude that HPV-16 absence in oral SCC, OL and OLP samples indicates that its infection is uncommon and does not represent an important risk factor in oral carcinogenesis in the population from northwest region of the Sao Paulo state ­ Brazil(AU)

Identificación molecular de genotipos papilomavirus humanos en pacientes con cáncer de cuello uterino / Molecular identification of human papilloma virus genotypes in patients with cervical cancer

Fundamento: la principal causa para el cáncer cervico uterino es el papilomavirus humano de alto riesgo. No existen antecedentes de estudios moleculares para la tipificación de papilomavirus humano en la población de Camagüey. La reacción en cadena de la polimerasa es una técnica de Biología Molecular que se ha usado desde siempre para el diagnóstico clínico; esta permite confirmar la presencia del ADN del Papilomavirus en el ADN total extraído a partir de muestras de pacientes con cáncer de cuello uterino. Objetivo: demostrar por primera vez los genotipos papilomavirus humano de alto riesgo circulantes, que causan cáncer de cuello uterino en la población femenina de Camagüey, Cuba. Métodos: se realizó un estudio analítico prospectivo donde se estudiaron 22 pacientes femeninas de la provincia de Camagüey, que fueron atendidas en la consulta de Patología de cuello del Hospital Ginecoobstétrico. La identificación y tipificación de los genotipos papilomavirus humano se realizó mediante el procedimiento molecular polimorfismo de longitud en los fragmentos de restricción. Resultados: el 63, 6 % de los pacientes presentaron lesiones tipo exofítica, el 4, 5 % endofítica y el 31, 8 % de otros tipos. Este estudio confirmó que los genotipos papilomavirus humanos de alto riesgo circulantes en la provincia Camagüey son los genotipos 16 y 31, donde el más frecuente fue el genotipo 16. Conclusiones: la presente investigación constituye el primer reporte de un estudio molecular de papilomavirus humanos a partir de muestras de pacientes con cáncer de cuello uterino en la provincia de Camagüey, Cuba. Estos resultados, junto a los obtenidos por otros autores, tienen una contribución importante en el diseño de preparados vacunales preventivos o terapéuticos, cada vez más efectivo hacia una solución anticipada para el cáncer de cuello uterino en Cuba.

Background: it is demonstrated that the main cause of cervical cancer is high risk humanp virus. There is no precedent of molecular studies for the typing of Human Papilloma Virus in the population of Camagüey. Polymerase chain reaction is Molecular Biology technique that has been used traditionally for the clinical diagnosis and other purposes. This technique allows confirming the presence of papillomavirus´DNA in the total extracted DNA, from samples of patients with cervical cancer. Objective: to demonstrate for the first time existing high-risk human papilloma virus genotypes that cause cervical cancer in female population of Camagüey, Cuba. Methods: a prospective analytic study was conducted, in which 22 female patients of the province of Camagüey were studied. They received medical attention at Ana Betancourt Hospital. Identification and typing of the Human Papilloma Virus genotypes was carried through the molecular procedure Restriction Fragment Length Polymorphism. Results: patients who presented exophytic lesions accounted for 63, 6%, 4, 5 % had endophytic type, and 31, 8 % presented other types. This study confirmed that high-risk Human Papilloma Virus genotypes existing in the province of Camagüey are genotypes 16 and 31, and the most frequent is 16. Conclusions: this research is the first report of a molecular study of Human Papilloma Virus from samples of patients with cervical cancer in the province of Camagüey, Cuba. These results, along with the ones obtained by other authors, make an important contribution in the design of the increasingly effective therapeutic and preventive vaccine to an anticipated solution to cervical cancer in Cuba.

Detection of human papillomavirus in dental biofilm and the uterine cervix of a pregnant adolescent / Detecção do papilomavírus humano em biofilme dental e no colo uterino de uma adolescente grávida

CONTEXT: Adolescence and pregnancy are considered to be risk factors for human papillomavirus (HPV) infection. The relationship between this infection in the uterine cervix and oral HPV infection is controversial. CASE REPORT: This report describes a case of a pregnant 16-year-old adolescent who presented HPV infection in the uterine cervix and the mouth. Smears were collected from the cervix and the tongue/palate. Dental biofilm samples were also collected. The microarray technique was used to detect HPV. The HPV 56 subtype was observed in the cervical smear and HPV 6 in dental biofilm. CONCLUSION: In this pregnant adolescent, HPV infection was present in both the cervix and the mouth, but the HPV subtypes infecting these two areas were different.

CONTEXTO: A adolescência e a gestação são consideradas fatores de risco para a infecção pelo papilomavírus humano (HPV). A relação entre essa infecção no colo do útero e na boca num mesmo paciente é controversa. RELATO DE CASO: Descrever o caso de uma adolescente grávida de 16 anos que apresentou a infecção pelo HPV no colo do útero e na boca. Esfregaços foram realizados no colo do útero e em língua/palato. Amostras de biofilme dental também foram coletadas. Para detectar o HPV, foi utilizada a técnica do microarranjo. O HPV 56 foi o subtipo encontrado no esfregaço cervical e o tipo HPV 6 no biofilme dental. CONCLUSÕES: Observamos, nessa adolescente grávida, a presença do HPV na boca e no colo do útero, mas os subtipos virais que infectavam essas duas regiões eram distintos.

Experiencia vivida de mujeres al ser diagnosticadas con virus del papiloma humano / Lived experience of women being diagnosed with human papiloma virus

Resumen:

Introducción: desde la visión médica se considera que las mujeres detectadas con el virus del papiloma humano (VPH) no siguen el tratamiento médico porque no saben las consecuencias para su salud o porque no quieren hacerlo. Esta visión deja de lado el sentir y la visión de la paciente sobre su proceso salud-enfermedad.

Metodología: estudio cualitativo que utiliza un enfoque o una aproximación fenomenológica para describir la experiencia de mujeres diagnosticadas con VPH. Se entrevistó a profundidad a 20 mujeres diagnosticadas (saturación de la teoría). Las informantes clave se identificaron en el listado nominal de la Clínica de Lesiones Tempranas del Hospital General de Ometepec, Guerrero. Las que aceptaron participar firmaron consentimiento informado. Para el análisis de datos se utilizó el método de Giorgi.

Resultados: las experiencias vividas de las mujeres diagnosticadas con el VPH se ubican entre la muerte física y su faceta como procreadoras, ya que el significado social de su sexualidad se centra en su función de mujer-madre. La promiscuidad de su pareja la consideran una actitud normal. El no usar condón es una cuestión que se establece ante la necesidad de ser reproductivas. Conclusiones: la significación sociocultural que tiene la mujer como procreadora limita el uso del condón. Su definición social y cultural la ubica como alguien sin derecho a conocer su cuerpo, el goce de su sexualidad y el respeto por su cuerpo y su salud, a ser única responsable de la integración de la familia y el cuidado de los hijos.

Abstract:

Introduction: From the medical point of view, women diagnosed with human papilloma virus (HPV) are noncompliant with treatment either because they are ignorant of the consequences for their health or because they simply do not want to comply. This view ignores the feelings and point of view of the patients about their health-illness process.

Methodology: This qualitative study used a phenomenological focus approach to describe the experience of women diagnosed with HPV. In-depth interviews were conducted with 20 women diagnosed with this virus. The key informants were identified from the Clínica de Lesiones Tempranas (Early Lesions Clinic) list at Ometepec General Hospital, in Guerrero, and signed informed consents. Giorgi's method was used for data analysis.

Results: The lived experiences of the women diagnosed with HPV are focused on physical death, and as reproductive women the social significance of their sexuality is centered on their function as wife-mother. The promiscuity of their partner is considered normal. Not using a condom is due to the need of being reproductive.

Conclusions: The sociocultural significance that the women have as procreators limits their use of condoms. Their social and cultural definition limits their right to know their body, to enjoy their sexuality, and their health. They are responsible for the family and for childcare.

Prevalence of cervical squamous intraepithelial lesion high grade according to age from Antônio Pedro University Hospital / Prevalência de lesão intraepitelial escamosa de alto grau do colo uterino de acordo com a faixa etária no Hospital Universitário Antônio Pedro

The targeted population for HPV infection has peak infection at young adults, but studies point to the emergence of a new peak of viral infection and injuries later, probably by changesin sexual behaviour, waning immunity over time or reactivation of latent infection. Whereas the cervical squamous intraepithelial lesion high grade, mainly cervical intraepithelial neoplasia grades III (CIN III) have significant potential for progression to invasive carcinoma, the procedures of choice for the diagnosis and treatment in the target population are essential for the prevention of cervix cancer. Objective: To determine the prevalence of CIN II/III among patients seen in Cervical Pathology Clinic of Gynecology Department at the University Hospital Antonio Pedro from May 1996 to May 2013, relating toage in which this diagnosis was made. Method: It was selected patients referred to the Cervical Pathology Clinic for altered cytology and diagnosed through biopsy guided by colposcopy with CIN II / III. They were segmented into the following age groups: 15 to 24, 25 to 34, 35 to 44, 45 to 54, 55 to 64, 65 to 74, 75 to 84 and 85 to 94 years old. Results: Between 25 and 64 years of age, there were 36.5% of patients in these age groups with CIN II/III. However, it was found that 19% of patients younger than 25 years and 14.2% at 64 years also had such a diagnosis. Conclusion: The target population according to Brazilian Ministry of Health would let 16.2% of women with high-grade lesions withouta diagnosis, which corresponds to 11.3% of all high-grade cervical lesions.

A população alvo de infecções pelo HPV tem como pico adultos jovens, porém estudos apontam para um novo pico mais tardio, provavelmente por alterações do comportamento sexual, diminuição da imunidade ou reativação da infecção latente. Considerando que as lesões intraepiteliais escamosas de alto grau do colo uterino, sobretudo a neoplasia intraepitelial cervical grau III (NIC III) tem potencial significativo de progressão para carcinoma invasor,os procedimentos de escolha para diagnóstico e tratamento na população alvo são essenciais para a prevenção do câncer de colo uterino. Objetivo: Verificara prevalência de NIC II/III dentre as pacientes atendidas no Ambulatório de Patologia Cervical do Serviço de Ginecologia do Hospital Universitário Antônio Pedro no período de maio de 1996 a maio de 2013, relacionando com a faixa etária em que este diagnóstico foi realizado. Método: Selecionou-se as pacientes encaminhadas ao Ambulatório de Patologia Cervical por citologia oncótica alterada e diagnosticadas, por meio de biópsia dirigida pela colposcopia, comNIC II/III. Foram segmentadas nas seguintes faixas etárias: 15 a 24, 25 a 34, 35 a 44, 45 a 54, 55 a 64, 65 a 74, 75 a 84 e 85 a 94 anos. Resultados: Entre 25e 64 anos de idade, houve 36,5% de pacientes nestas faixas etárias com NIC II/III. Entretanto, verificou-se que 19% de pacientes com menos de 25 anos e14,2% com mais de 64 anos também apresentavam tal diagnóstico. Conclusão: A população-alvo preconizada pelo Ministério da Saúde deixaria 16,2% dasmulheres com lesões de alto grau à margem de um diagnóstico, o que corresponde a 11,3% de todas as lesões de alto grau do colo uterino.

Conhecimento e atitude de usuários do SUS sobre o HPV e as vacinas disponíveis no Brasil / SUS users? knowledge of and attitude to HPV virus and vaccines available in Brazil / SUS users? knowledge of and attitude to HPV virus and vaccines available in Brazil

OBJETIVO : Analisar o conhecimento de homens e mulheres acerca do HPV e das vacinas e sua intenção de serem vacinados e de vacinarem seus filhos adolescentes. MÉTODOS : Estudo descritivo, de corte transversal, com 286 mulheres (18 a 49 anos) e 252 homens (18 a 60 anos), usuários de cinco unidades básicas de saúde e duas policlínicas do Sistema Único de Saúde, em Campinas, SP, em 2011. Foi realizada entrevista estruturada. Realizou-se análise bivariada e regressão de Poisson para identificar variáveis associadas ao conhecimento sobre HPV e vacinas e à intenção de vacinação. RESULTADOS : Quase 40,0% dos entrevistados referiram ter ouvido falar do HPV e 28,9% mencionaram informações adequadas; a principal fonte de informação foi a mídia (41,7%); 8,6% tinham ouvido falar das vacinas. Depois de informados da existência das vacinas, cerca de 94,0% dos participantes disseram que se vacinariam e/ou vacinariam filhos adolescentes se as vacinas estivessem disponíveis na rede pública de saúde. Escolaridade > 8 anos e ser do sexo feminino estiveram independentemente associados a ter ouvido falar do HPV e das vacinas e a ter conhecimento adequado sobre o vírus. Maior idade associou-se a ter ouvido falar das vacinas. Não houve variáveis associadas à intenção de vacinação. CONCLUSÕES : Os resultados reforçam a necessidade de haver intervenções educativas na população para prover informação adequada sobre o HPV e sobre medidas de prevenção. .

Objetivo : Analizar el conocimiento de hombres y mujeres sobre el VPH y de las vacunas y su intención de ser vacunados y de vacunar sus hijos adolescentes. Métodos : Estudio descriptivo, de corte transversal, con 286 mujeres (18 a 49 años) y 252 hombres (18 a 60 años), usuarios de cinco unidades básicas de salud y dos policlínicas del Sistema Único de Salud, en Campinas, SP – Brasil, en 2011. Se realizó entrevista estructurada. Se utilizó el análisis bivariado y regresión de Poisson para identificar variables asociadas al conocimiento sobre VPH y vacunas y la intención de vacunación. Resultados : Casi el 40,0% de los entrevistados mencionaron haber oído hablar del VPH y 28,9% relataron informaciones adecuadas; la principal fuente de información fueron los medios de comunicación (41,7%); 8,6% habían oído hablar de las vacunas. Después de informados de la existencia de las vacunas, cerca de 94,0% de los participantes dijeron que se vacunarían y/o vacunarían hijos adolescentes si las vacunas estaban disponibles en la red pública de salud. Escolaridad > 8 años y ser del sexo femenino estuvieron independientemente asociados al haber oído hablar del VPH y de las vacunas y tener conocimiento adecuado sobre el virus Mayor edad se asoció al haber oído hablar de vacunas. No hubo variables asociadas a la intención de vacunación. Conclusiones : Los resultados refuerzan la necesidad de haber intenciones educativas en la población para proveer información adecuada sobre el VPH y sobre medidas de prevención .

OBJECTIVE : To investigate knowledge of HPV and HPV vaccines in men and women, users of the Brazilian Unified Health System, and the intention to get themselves and their teenage children vaccinated. METHODS : A descriptive, cross-sectional study with 286 women (18-49 years old) and 252 men (18-60 years old), users of five primary health units and two polyclinics in Campinas, SP, Southeastern Brazil, was carried out. Participants were interviewed in 2011 using a structured questionnaire. Bivariate and Poisson regression analysis were performed to identify variables associated with knowledge of HPV and HPV vaccines, and participants vaccination intentions. RESULTS : Almost 40.0% of the participants reported having heard of HPV and 28.9% mentioned adequate information. The main information source was the media (41.7%). Only 8.6% of the participants had heard of the HPV vaccines. Once the participants were informed of the existence of HPV vaccines about 94% of them said they would get vaccinated and/or vaccinate their teenage children, if the vaccines were available in the public health system. Schooling of over 8 years and being female were the variables independently associated with having heard of HPV, the vaccines and having adequate knowledge of the virus. Advanced age was associated with having heard of HPV vaccines. There were no variables associated with the vaccination intentions. CONCLUSIONS : These results reinforce the need for educational activities that provide the population with adequate information on HPV and preventive measures. .

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%...

Perianal squamous cell carcinoma with high-grade anal intraepithelial neoplasia in an HIV-positive patient using highly active antiretroviral therapy: case report

CONTEXT: Highly active antiretroviral therapy (HAART) has turned human immunodeficiency virus (HIV) infection into a chronic condition, and this has led to increased incidence of anal dysplasia among HIV-positive patients. Routine anal evaluation including the anal canal and perianal area is recommended for this population, especially for patients infected by oncogenic human papillomavirus (HPV) types. CASE REPORT: A 54-year-old homosexual HIV-positive man presented with a six-year history of recurrent perianal and anal warts. He had previously undergone incomplete surgical excision and fulguration in another institution on two occasions. He had been using HAART over the past two years. He presented some condylomatous spreading lesions occupying part of the anal canal and the perianal skin, and also a well-demarcated slightly painful perianal plaque of dimensions 1.0 x 1.0 cm. Both anal canal Pap smears and biopsies guided by high-resolution anoscopy revealed high-grade squamous intraepithelial lesion. Biopsies of the border of the perianal plaque also revealed high-grade squamous intraepithelial lesion. HPV DNA testing of the anus detected the presence of HPV-16 type. The patient underwent local full-thickness excision of the lesion. Histological analysis on the excised tissue revealed high-grade squamous intraepithelial lesion with one focus of microinvasive squamous cell cancer measuring 1 mm. No lymph vessel or perineural invasion was detected. The patient showed pathological evidence of recurrent anal and perianal high-grade squamous intraepithelial lesions at the sixth-month follow-up and required further ablation of those lesions. However no invasive squamous cell carcinoma recurrence has been detected so far.

CONTEXTO: A terapia anti-retroviral altamente ativa tornou a infecção pelo HIV uma condição crônica, levando a um aumento na incidência de pacientes HIV-positivos com displasia anal. A avaliação anal rotineira incluindo a região anal e perianal é recomendada nessa população, especialmente nos doentes infectados por tipos oncogênicos do HPV. RELATO DE CASO: Um homem homossexual HIV-positivo de 54 anos foi encaminhado para avaliação de condilomas anais e perianais recorrentes há seis anos. Referia duas ressecções cirúrgicas incompletas em outro serviço. Encontrava-se em uso de medicação anti-retroviral altamente ativa há dois anos. Ao exame proctológico, apresentava algumas lesões condilomatosas no canal anal e na região perianal, assim como uma placa bem delimitada de 1,0 por 1,0 cm levemente dolorosa na região perianal. Ambos esfregaço do canal anal e biópsia guiada por anoscopia de alta resolução revelaram lesão escamosa intraepitelial de alto grau. Uma biópsia da borda da placa perianal também diagnosticou lesão escamosa intraepitelial de alto grau. A pesquisa de DNA de HPV do canal anal detectou a presença do HPV tipo 16. O paciente foi submetido à excisão local profunda da lesão. O estudo anatomopatológico revelou lesão escamosa intra-epitelial de alto grau com um foco de 1 mm de carcinoma epidermóide microinvasivo, sem invasão perineural ou linfo-vascular. O paciente apresentou recorrência de lesão escamosa intra-epitelial de alto grau no canal anal e na região perianal confirmadas por biópsias no sexto mês pós-operatório, necessitando ablação. Entretanto, até o momento não apresentou recorrência do carcinoma epidermóide invasivo.