Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 237
Filter
2.
J. coloproctol. (Rio J., Impr.) ; 41(4): 419-424, Out.-Dec. 2021. tab
Article in English | LILACS | ID: biblio-1356442

ABSTRACT

Objective: Squamous cell carcinoma of the anus (SCCA) is associated with human papillomavirus (HPV) infection in almost 90% of the cases. Its incidence is alarmingly high among men who have sex with men (MSM) and continues to increase at an average rate of 2% per year. The objective of the present study is to evaluate the usefulness and performance of liquid-based anal cytology as a screening tool for prevention and early detection of SCCA in a cohort of at-risk men. Method: We conducted a retrospective study including 111 MSM, aged between 22 and 62 years old, who underwent anal cytological screening with a liquid-based Pap test at our sexually transmitted diseases (STDs) clinic from January 2015 to March 2017. Results: Out of 111 anal smears, 57 (51,4%) resulted negative, 42 (37,8%) abnormal, and 12 (10,8%) unsatisfactory for the cytological evaluation. Only patients with an abnormal cytology underwent anoscopy and subsequent biopsy. The histological results were as follows: negative for squamous intraepithelial lesion (SIL) in 5 cases, low-grade SIL (L-SIL) in 21, high-grade SIL (H-SIL) in 5, SCCA in 1. Five patients had a normal anoscopy and biopsy was not taken. Conclusion: Liquid-based cytology, reducing the "darkening factors" typical for the conventional smears, has a higher positive predictive value than the traditional technique. Moreover, a cytological diagnosis of atypical squamous cells of undetermined significance (ASC-US) or L-SILmay hide a severe dysplasia or even a carcinoma. Thus, all patients with an abnormal anal cytology at any grade should be considered for anoscopy. (AU)


Subject(s)
Humans , Male , Adult , Middle Aged , Anus Neoplasms/prevention & control , Cytodiagnosis/methods , Sexual and Gender Minorities , HIV , Papillomavirus Infections/diagnosis
5.
An. bras. dermatol ; 96(2): 125-138, Mar.-Apr. 2021. tab, graf
Article in English | LILACS | ID: biblio-1248731

ABSTRACT

Abstract In this nonsystematic review, the complementary diagnosis, treatment, prevention, and control of human papillomavirus are discussed. The histopathology is addressed regarding its indications, main findings and limitations, as a complementary diagnostic method largely used by dermatologists. Electron microscopy is briefly reviewed, along with its contribution to the accumulated knowledge on HPV, as well as the relevance of research in using this technology for future advances in diagnosis and treatment. Molecular information about the virus is continuously increasing, and the practical applications of HPV serology, molecular identification and genotyping are discussed. Vaccines are a valuable tool in primary HPV infection prevention and are now available in many countries; their composition, indications, and adverse effects are revisited. Local and systemic treatment options are reviewed and off-label prescriptions are discussed. Finally, health education focusing on HPV infection as a sexually transmitted infection of worldwide relevance and the many barriers to improve primary and secondary prevention are addressed.


Subject(s)
Humans , Papillomavirus Infections/diagnosis , Papillomavirus Infections/prevention & control , Alphapapillomavirus , Papillomavirus Vaccines , Papillomaviridae , Risk Factors
6.
Rev. colomb. cancerol ; 24(3): 140-145, jul.-set. 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1144333

ABSTRACT

Resumen El desarrollo y la innovación de nuevas tecnologías ha permitido mejorar la detección de la infección por el virus del papiloma humano de alto riesgo. La captura de híbridos II es un ensayo que se basa en hibridación y quimioluminiscencia. Cobas VPH Test es una PCR cualitativa y Aptima VPH Assay permite detectar la expresión de ARN mensajero de las oncoproteínas E6/E7 del VPH de alto riesgo. Estas técnicas presentan ventajas en comparación con la citología convencional, que se utiliza como prueba de rutina para la detección temprana del cáncer de cuello uterino. En el estudio ESTAMPA se realizaron 13.691 procesamientos que permitieron identificar que para el planteamiento de proyectos de investigación o para la implementación de pruebas de tamizaje de VPH es necesario analizar las ventajas y desventajas de las pruebas del mercado.


Abstract The development and innovation of new technologies has improved the detection of high-risk human papillomavirus infection. Hybrid capture II is an assay that is based on hybridization and chemiluminescence. Cobas HPV Test is a qualitative PCR and Aptima HPV Assay allows to detect the expression of messenger RNA of the high- risk HPV E6 / E7 oncoproteins. These techniques have advantages, in comparison, with conventional cytology that is routinely used for the detection of cervical cancer. In the ESTAMPA study, 13,691 prosecutions were carried out that allowed to identify that for the planning of research projects or for the implementation of HPV screening tests, it is necessary to analyze the advantages and disadvantages of market tests.


Subject(s)
Humans , Female , Papillomaviridae/isolation & purification , Research Design , Uterine Cervical Neoplasms/diagnosis , Papillomavirus Infections/diagnosis , Molecular Diagnostic Techniques/methods , Papillomaviridae/genetics , DNA, Viral , RNA, Messenger , Uterine Cervical Neoplasms/genetics , Mass Screening , Multicenter Studies as Topic , Triage , Papillomavirus Infections/genetics , Human Papillomavirus DNA Tests , Luminescent Measurements , Nucleic Acid Hybridization
7.
Rev. bras. ginecol. obstet ; 42(6): 340-348, June 2020. tab, graf
Article in English | LILACS | ID: biblio-1137843

ABSTRACT

Abstract Objective To evaluate the performance of the hybrid capture 2 (HC2) high-risk papillomavirus (hrHPV) assay and cytological test in women with previous abnormalities, to detect cervical intraepithelial neoplasia grade 2 or worse (≥ CIN 2). Methods A cytological test and HC2 (Qiagen, Gaithersburg, Maryland, EUA) for hrHPV were conducted in 359 liquid-based (Sure Path, Becton Dickinson, TriPath Imaging, Burlington, NC, USA) samples collected from women from the Vale do Ribeira Region, during July 2013 and September 2015 with previous cytology classified as atypical squamous cells of undetermined significance (ASC-US), low-grade squamous intraepithelial lesion (LSIL), atypical squamous cells, cannot exclude high-grade squamous intraepithelial lesions (ASC-H), and atypical glandular cells (AGC). The histopathological examination was conducted in 179 women. The performance evaluations were calculated using the "exact" Clopper-Pearson 95% confidence interval (CI) test by MEDCALC (Medcalc Software Ltd, Ostend, Belgium). Results The ≥ CIN 2 frequency was 11.7% (21/179). The HC2 for hrHPV and repeat cytology to detect ≥ CIN 2 obtained, respectively, a sensitivity of 90.5% (95% CI = 69.6-98.8) and 90.5%, (95%CI = 69.6-98.8), a specificity of 65.8% (95% CI = 57.9-73.2) and 43.7% (95%CI = 35.8-51.8), a positive predictive value of 26.0% (95% CI = 21.4-31.3) and 17.6%, (95%CI = 14.9-20.6), and a negative predictive value of 98.1% (95%CI = 93.3-99.5) and 97.2% (95% CI = 90.1-99.2). Conclusion Hybrid capture 2 for hrHPV improves the performance of the detection of ≥ CIN 2, without compromising sensitivity, and provides a greater safety margin to return to the triennial screening of women undergoing follow-up due to previous abnormalities, without underlying ≥ CIN 2.


Resumo Objetivo Avaliar o desempenho da captura híbrida 2 (CH2) para papilomavírus humano de alto risco (HPVar) e repetição do exame citopatológico em mulheres com anormalidades em citologia anterior, para detectar neoplasia intraepitelial cervical grau 2 ou pior (≥ NIC 2). Métodos Foi realizado exame citopatológico e CH2 para HPVar (Qiagen, Gaithersburg, Maryland, EUA) em 359 amostras em meio líquido (Sure Path, Becton Dickinson, TriPath Imaging, Burlington, NC, USA) coletadas de mulheres da região do Vale do Ribeira, durante julho de 2013 e setembro de 2015 com citologia anterior classificada como células escamosas atípicas de significado indeterminado (ASC-US), lesão intraepitelial de baixo grau (LSIL), células escamosas atípicas, não podendo excluir lesão de alto grau (ASC-H) e células glandulares atípicas (AGC). O exame histopatológico foi realizado em 179 mulheres. As avaliações de desempenho foram calculadas usando o teste de intervalo de confiança (IC) "exato" de Clopper-Pearson de 95% pelo software MEDCALC (Medcalc Software Ltd, Ostend, Bélgica). Resultados A frequência de≥ NIC 2 foi 11,7% (21/179). A CH2 para o HPVar e a citologia de repetição para a detecção ≥ NIC 2 obteve, respectivamente, sensibilidade de 90.5% (IC 95% = 69,6-98,8) e 90,5% (IC 95% = 69,6-98,8), especificidade de 65,8% (IC 95% = 57,9-73,2) e 43,7%, (IC 95% = 35,8-51,8), valor preditivo positivo de 26,0% (IC 95% = 21,4-31,3) e 17,6%, (IC95% = 14,9-20,6), e valor preditivo negativo de 98,1% (IC 95% = 93,3-99,5) e 97,2%, (IC 95% = 90,1-99,2). Conclusão No geral, a CH2 para HPVar aprimora o desempenho para detecção de ≥ NIC 2, sem comprometer a sensibilidade e proporciona maior margem de segurança do retorno ao rastreio trienal de mulheres com anormalidades citológicas prévias, sem≥ NIC 2 subjacente.


Subject(s)
Humans , Female , Adolescent , Adult , Aged , Young Adult , Papillomaviridae/isolation & purification , Vaginal Smears , Uterine Cervical Neoplasms/diagnosis , Triage , Cervical Intraepithelial Neoplasia/diagnosis , Papillomavirus Infections/diagnosis , Atypical Squamous Cells of the Cervix/pathology , Brazil , Uterine Cervical Neoplasms/pathology , Cross-Sectional Studies , Sensitivity and Specificity , Cervical Intraepithelial Neoplasia/pathology , Papillomavirus Infections/pathology , Middle Aged
8.
J. oral res. (Impresa) ; 9(1): 51-56, feb. 28, 2020. ilus, tab
Article in English | LILACS | ID: biblio-1151481

ABSTRACT

Some genotypes of the human papilloma virus (HPV) in the oral cavity cause genetic instability that may lead to cancer. Clinical and histological diagnoses are key tools; however, molecular techniques allow predicting, detecting and monitoring the disease. Objective: To identify the frequency of four high-risk HPV genotypes and their association with lesions in the oral cavity. Materials and Methods: Descriptive cross-sectional study with a sample of 48 patients diagnosed with hyperplastic lesions and others currently classified as potentially malignant disorders (PMDs) of the oral cavity, who underwent biopsies, histopathological analysis, and HPV16, 18, 31, and 45 detection and genotyping by polymerase chain reaction (PCR). Results: Epithelial hyperplasia was the most frequent lesion found in 45.8% (n=22) of patients. Nicotine palatinus and leukoplakia were found in 8.3% and 6.2%, respectively; oral cancer in 6.2%. The total frequency of HPV was 12.5% (6/48). Oral papilloma was found in 6.1% (3/48), and nicotine palatinus and oral cancer in 2.0% each (1/48). HPV16, HPV31, and HPV45 were detected, while HPV18 was not observed. HPV16 was the most frequent genotype found (4 out of 6 patients), while HPV31 and HPV45 were found in one patient each. Only one genotype per lesion was found. The presence of HPV was associated with lesions (χ2=11.810; p=0.0375). No significant association with age and gender was found. Conclusion: High-risk HPV continues to be present in oral lesions. The HPV16 viral genotype was the most frequent in the studied lesions.


Algunos genotipos del virus del papiloma (VPH) en boca, producen inestabilidad genética dando lugar al cáncer. El diagnóstico clínico e histológico son herramientas claves, sin embargo, técnicas moleculares permiten predecir, detectar y dar seguimiento a la enfermedad. Objetivo: Identificar la frecuencia de cuatro genotipos del VPH de alto riesgo y su asociación con lesiones en cavidad bucal. Material y Métodos: Estudio descriptivo de corte transversal con una muestra de 48 pacientes diagnosticados con lesiones hiperplásicas y otros clasificados actualmente como desordenes potencialmente malignos (DPM) de la cavidad bucal, a quienes se les realizó biopsias, análisis histopatológico y detección y genotipificación VPH16, 18, 31, y 45 mediante reacción en cadena a la polimerasa (PCR). Resultado: La hiperplasia epitelial fue la lesión más frecuente en 45,8% (n=22). La palatinitis nicotínica y la leucoplasia, se encontraron 8,3% y 6,2% respectivamente, cáncer oral, en 6,2%. La frecuencia total de VPH fue 12,5% (6/48). El papiloma oral estuvo en un 6,1% (3/48), palatinitis nicotínica y cáncer oral en 2,0% (1/48).Se detectó VPH16, VPH31 y VPH45, mientras que VPH18 estuvo ausente. ElVPH16 fue el de mayor frecuencia con 66,7% (4/6), el VPH31 y VPH45 se encontraron en 16,7% (1/6). No se evidenció más de un genotipo por lesión. La presencia de VPH estuvo asociado con las lesiones (χ2=11,810; p=0,0375). No se encontró asociación significativa con edad y género. Conclusión: El VPH de alto riesgo sigue estando presente en lesiones bucales. El genotipo viral VPH16 se encontró con mayor frecuencia en las lesiones estudiadas.


Subject(s)
Humans , Mouth Neoplasms , Papillomavirus Infections/epidemiology , Human papillomavirus 16 , Human papillomavirus 18 , Mouth/injuries , Epidemiology, Descriptive , Colombia , Focal Epithelial Hyperplasia , Papillomavirus Infections/diagnosis
9.
Rev. méd. Urug ; 35(4): 267-280, dic. 2019. tab, fig
Article in Spanish | LILACS | ID: biblio-1026117

ABSTRACT

Introduccción: en Uruguay, el cáncer de cuello uterino ocupó el tercer lugar con una incidencia promedio de 312 nuevos casos por año; fallecieron 134 mujeres promedio por año en el período 2010 - 2014. Objetivo: el objetivo de este trabajo fue analizar los primeros resultados de una experiencia piloto con la aplicación del test de HPV captura híbrida HC2 (QiagenR) como test de tamizaje primario del cáncer de cuello uterino en una zona del departamento de Canelones. Método: se estudiaron 1.010 mujeres asintomáticas entre 30 y 64 años que concurrieron a realizarse el test de PAP a dos unidades de toma de muestras del Programa de prevención del cáncer de cuello uterino. Se realizó la extracción conjunta de la muestra para PAP, que fue derivada a uno de los laboratorios de citología de la Red de Atención Primaria de Salud y la muestra de HPV que fue procesada con la técnica de captura híbrida en el laboratorio de biología molecular del Centro Hospitalario Pereira Rossell. Las usuarias con resultados HPV + y PAP anormales (ASC-US+) fueron derivadas a colposcopia, con biopsia y posterior tratamiento cuando correspondió. Resultados: el test de HPV fue positivo en 126/1.010 mujeres (12,5%) y el PAP anormal en 167/1.010 (16,5%). El test de HPV fue positivo en todos los casos CIN2+ 13/13 (100%) mientras que el PAP fue anormal (ASCUS+) en 7/13 (54%) para CIN2+ por biopsia. Conclusión: el test de HPV resultó más eficaz y eficiente que el PAP para la detección de lesiones precancerosas de cuello uterino.


Introduction: in Uruguay, cervical cancer occupied the third place with an average incidence of 312 new cases per year. 134 women died in the 2010 -2014 period. Objective: the study aims to analyse the first results in a pilot experience with the application of Hybrid Capture® 2 High-Risk HPV DNA Test™ (hc2) (QiagenR) as the primary screening test for cervical cancer, in the Department of Canelones. Method: 1.010 asymptomatic women whose ages ranged between 30 and 64 years old were studied when they requested a pap smear at two units of sample taking within the Cervical Cancer Prevention Program. Samples were taken along with the pap smear, and sent to one of the cytology labs in the primary health care network, the HPV sample being processed with the hybrid capture technique in the molecular biology laboratory of the Pereira Rossell Hospital Center. Users with abnormal HPV+ and abnormal pap smear results (ASCUS+) were referred to colposcopy, with subsequent biopsy and treatment if required. Results: HPV test was positive in 126/1010 women (12.5%) and PAP was abnormal in 167/1010 cases (16.5%). HPV test was positive in all cases CIN2+ 13/13 (100%) whereas PAP was abnormal (ASCUS+) in 7/13 54%) for CIN2+ in biopsy. Conclusion: HPV test was more effective and efficient than pap smear to detect pre-cancer lesions in the cervix.


Introdução: no Uruguai, no período 2010 - 2014, o câncer de colo do útero foi a terceira causa com uma incidência média de 312 novos casos por ano e uma média de 134 mortes por ano. Objetivo: o objetivo deste trabalho foi analisar os primeiros resultados de uma experiência piloto com a utilização do exame de HPV Captura Híbrida HC2 (QiagenR) na tamizagem primária do câncer de colo do útero em una zona do departamento de Canelones. Método: foram estudadas 1010 mulheres assintomáticas, com idades entre 30 e 64 anos que foram a duas unidades do Programa de Prevenção do Câncer do Colo do Útero para a coleta de amostra para exame de Papanicolau (PAP). Realizou-se uma única extração para duas amostras: uma para PAP, que foi encaminhada a um laboratório de citologia da rede de atenção primária de saúde e outra para o exame de HPV que foi processada com a técnica de captura híbrida no laboratório de biologia molecular do Centro Hospitalario Pereira Rossell. As usuárias com resultados HPV + e PAP anormais (ASCUS+) foram encaminhadas para realização de colposcopia, com biopsia e tratamento quando fosse necessário. Resultados: o exame de HPV foi positivo em 126/1010 mulheres (12.5%) e o PAP foi anormal em 167/1010 (16.5%). O exame de HPV foi positivo em todos los casos CIN2+ 13/13 (100%) e o PAP foi anormal (ASCUS+) em 7/13 (54%) para CIN2+ por biopsia. Conclusão: o exame de HPV foi mais eficaz e eficiente que o PAP para detecção de lesões pré-cancerosas de colo do útero.


Subject(s)
Humans , Female , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/prevention & control , Mass Screening/methods , Papillomavirus Infections/diagnosis , Papanicolaou Test
11.
Rev. chil. infectol ; 36(4): 421-427, ago. 2019. tab
Article in Spanish | LILACS | ID: biblio-1042657

ABSTRACT

Resumen Introducción: El inicio precoz de actividad sexual puede favorecer el desarrollo de alteraciones cervicales y de infecciones de transmisión sexual, en especial del virus papiloma humano (VPH) muy frecuente en adolescentes y jóvenes. Objetivo: Analizar el estado del cuello uterino, presencia del VPH y conductas sexuales en mujeres menores de 25 años. Material y Métodos: Participaron 182 estudiantes universitarias de 18-24 años, sanas, sexualmente activas y no vacunadas para VPH. Se realizó Papanicolaou (Pap) y clasificación del VPH en alto y bajo riesgo (AR y BR) mediante reacción de polimerasa en cadena en tiempo real. Las conductas sexuales fueron consultadas privadamente. Resultados: El 46,9% de los Pap presentaron alteraciones citológicas (inflamación inespecífica/hemorrágico: 29,4% y frotis atípicos (FA):10,2%). La frecuencia de los VPH-AR fue 24,3%; de éstos, 67,4% presentó un Pap alterado. Hubo asociación entre alteraciones citológicas y presencia de VPH (p < 0,0001) y años de actividad sexual y FA o neoplasia intraepitelial grado I (NIE I) (p = 0,009). El 11,9% de las jóvenes estudiadas (21/177) presentó FA o NIE I, con 66,7% de casos VPH-AR. Conclusiones: Estos hallazgos alertan la vulnerabilidad de estas jóvenes que tendrían un riesgo potencial de persistencia viral, NIE y eventualmente cáncer. Es importante enfatizar consejería y prevención previo a la edad normada de ingreso al programa de cribado para cáncer cérvico uterino en Chile.


Background: The early onset of sexual activity can promote the development of cervical alterations and sexually transmitted infections, especially the human papillomavirus (HPV) very common in adolescents and young people. Aim: The condition of the cervix, HPV and sexual behavior in young women under 25 years of age were analyzed. Methods: 182 university students, healthy, sexually active, 18-24 years old, without vaccine for HPV participated. Papanicolaou (Pap) test and classification of high and low risk HPV (HR and LR) were performed by real time polymerase chain reaction. The sexual behaviors were consulted in private. Results: The 46.9% of Pap presented cytological alterations, non-specific inflammation/hemorrhagic (29.4%) and atypical smear (10.2%) being de most frequent. The overall frequency of HPV-HR was 24.3%, of these 67.4% presented an altered Pap. There was an association between cytological alterations and HPV (p < 0.0001) and years of sexual activity and atypical smear or cervical intraepithelial neoplasia grade I (CIN I) (p = 0.009). 11.9% of young women (21/177) presented atypical smear or CIN I, with 66.7% of cases HPV-HR. Conclusions: These findings alert the vulnerability of these young women who would have a potential risk of viral persistence, CIN and eventually cancer. It is important to emphasize counseling and prevention prior to the regular age of admission to the screening program for cervical cancer. This study was financed by the Universidad de La Frontera through Projects DI15-0047 and DI17-0123.


Subject(s)
Humans , Female , Adolescent , Young Adult , Papillomaviridae/isolation & purification , Sexual Behavior/statistics & numerical data , Students/statistics & numerical data , DNA, Viral/analysis , Papillomavirus Infections/diagnosis , Papillomaviridae/genetics , Universities , Chile/epidemiology , Mass Screening , Polymerase Chain Reaction , Risk Factors , Papillomavirus Infections/epidemiology , Papanicolaou Test
12.
Pesqui. bras. odontopediatria clín. integr ; 19(1): 4459, 01 Fevereiro 2019. tab
Article in English | LILACS, BBO | ID: biblio-998049

ABSTRACT

Objective: To evaluate awareness of medical and dental students of Kerman University of medical science about the infection and vaccination of the human papilloma virus. Material and Methods: This descriptive cross-sectional study was conducted on 290 medical and dental students. The data were collected using a questionnaire, which consisted of demographic data, and awareness-raising questions whose validity and reliability were confirmed. Mann-Whitney U and linear regression test were used for statistical analysis, and significance level of 0.05% was measured. Results: From 290 participants, 44.5% were male, 69.7% were single, 51.7% were medical students and 92.4% of individuals had awareness about HPV. The most common source of information (83.7%) was textbook. 39.9% of respondents were not familiar with the HPV vaccine and 62.1% tended to be vaccinated. Most of individuals (69.4%) were willing to pay a vaccination fee of less than $10. Most of respondents were not aware of HPV vaccination in Iran (68.3%). The mean score of knowledge was 6.1 ± 2.4. There was a statistically significant relationship between gender, field of study and marital status with mean score of knowledge (p<0.05). Conclusion: The students' knowledge was moderate. The awareness of men and women about HPV was poor. Further studies are recommended on other community groups, especially young people. Risk groups should be identified and referred to the relevant organs for vaccination.


Subject(s)
Humans , Male , Female , Papillomaviridae , Students, Dental , Students, Medical , Papillomavirus Infections/diagnosis , Papillomavirus Vaccines , Iran , Linear Models , Epidemiology, Descriptive , Cross-Sectional Studies/methods , Statistics, Nonparametric
13.
Salud pública Méx ; 61(1): 86-94, ene.-feb. 2019. tab
Article in Spanish | LILACS | ID: biblio-1043362

ABSTRACT

Resumen: Objetivo: Evaluar el impacto de la prueba de VPH (prueba de VPH) en los problemas que históricamente afectaron al tamizaje de cáncer cervical en América Latina, tomando como caso al Proyecto Demostración para la Introducción de la prueba de VPH en Jujuy (PDJ), Argentina. Material y métodos: Se sintetizó la evidencia sobre los problemas del tamizaje cervical en la región. Se analizó el impacto en los problemas a partir de la introducción de la prueba de VPH. El impacto se clasificó en directo/indirecto y positivo/negativo. Resultados: El impacto directo-positivo se dio en los problemas de adherencia a la edad/frecuencia de tamizaje, laboratorios de citología, baja/moderada sensibilidad de la citología y baja cobertura. El impacto directo-negativo se vinculó con el triaje de autotoma y el envío/etiquetado de muestras. El impacto indirecto-positivo se relacionó con la reorganización programática realizada para introducir la prueba de VPH. Conclusiones: La prueba de VPH representa una ventana de oportunidad para el mejoramiento del tamizaje pero no resuelve los problemas programáticos.


Abstract: Objective: To assess the impact of HPV testing on longstanding problems faced by screening programs in Latin America, using the case of the Jujuy Demonstration Project (JDP) in Argentina. Materials and methods: The study measured the level of impact produced by the introduction of HPV-testing on problems faced by cytology programs by analyzing modifications on specific problems produced during the JDP. Impact was classified as direct/indirect, and positive/ negative. Results: Direct/positive impact was found in issues concerning age and screening frequency, cytology laboratories and screening sensitivity, and low coverage. Direct/negative impact was mainly related to the adherence to triage cytology by HPV+ women with self-collected-tests, and the delivery and labelling of samples. Indirect impact of HPV-Test was mostly positive, and related to the programmatic reorganization which was facilitated by the introduction of HPV testing. Conclusions: HPV testing provides an opportunity window for improving primary screening, but does not solve programmatic problems.


Subject(s)
Humans , Female , Vaginal Smears , Uterine Cervical Neoplasms/prevention & control , Mass Screening/statistics & numerical data , Papillomavirus Infections/diagnosis , Human Papillomavirus DNA Tests , Argentina/epidemiology , Precancerous Conditions/diagnosis , Precancerous Conditions/epidemiology , Social Problems , Program Evaluation , Patient Acceptance of Health Care , Mass Screening/methods , Mass Screening/organization & administration , Data Collection , Guideline Adherence , Papillomavirus Infections/epidemiology , Developing Countries , Social Determinants of Health
14.
Rev. medica electron ; 41(1): 203-210, ene.-feb. 2019.
Article in Spanish | LILACS, CUMED | ID: biblio-991338

ABSTRACT

RESUMEN El cáncer cérvico uterino, causa alrededor de 250 000 muertes anuales en el mundo y alrededor de 400 en Cuba, a pesar del esfuerzo que realiza el MINSAP, a través del Programa de Pesquisaje. Con el mismo se puede obtener el diagnóstico de lesiones precursoras del cáncer de cuello uterino, este diagnóstico citológico se realiza en Cuba a través del método de Richard y Barron que demuestra que existe un progreso citológico aparente hasta llegar al cáncer, que comienza con neoplasia intraepitelial (NICI a NICIII y carcinoma in situ), hasta finalmente el cáncer invasor. Por otro lado existe el método de Bethesda que responde casi todas las interrogantes que la citología plantea para su enfrentamiento, evidentemente los mayores aportes y revisiones se enfocan al manejo de las citologías atípicas de significado incierto, ya que no sólo presentan un mayor número de posibles evaluaciones, sino que representan el mayor porcentaje de citologías alteradas y la inclusión del VPH en las lesiones de bajo grado. En Cuba todavía se clasifica por el método de Richard y no se utiliza el Bethesda. Por la alta incidencia de esta entidad el propósito de este trabajo es emitir consideraciones sobre la implementación del sistema de Bethesda en el diagnóstico citológico de lesiones precancerosas del cérvix.


ABSTRACT The cervical-uterine cancer causes almost 250 000 death a year around the world and around 400 in Cuba in spite of the efforts made by the Public Health Ministry through the Screening Program. With it, the diagnosis of lesions that are predecessors of the cervical cancer could be reached. This cytological diagnosis is carried out through the Richard and Barron method, showing that there is an apparent cytological progress leading to the cancer that begins with intraepithelial neoplasia (NICI and NICIII and carcinoma in-situ) and ends in the invasive cancer. From the other hand there is the Bethesda methods answering to all the questions cytology ask for confronting it. Obviously the biggest contributions and reviews are focused in the management of the atypical cytologies with uncertain significance since they not only have a higher number of possible evaluations, but also represent the highest percent of the altered cytologies and the inclusion of the HPV in low grade lesions. The classification in Cuba is still made by the Richard method and the Bethesda one is not used. Due to the high incidence of this entity, the aim of this article is exposing considerations on the implementation of the Bethesda system in the cytological diagnosis of cervix pre-cancerous lesions.


Subject(s)
Humans , Female , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/virology , Cytological Techniques/standards , Papillomavirus Infections/diagnosis , Papillomavirus Infections/pathology , Papillomavirus Infections/virology , Biopsy, Fine-Needle/methods , National Health Programs , Preventive Health Services , Disease Prevention
15.
Revista Digital de Postgrado ; 8(3): e179, 2019. tab
Article in Spanish | LILACS, LIVECS | ID: biblio-1094822

ABSTRACT

Determinar la prevalencia de las lesiones intraepiteliales cervicales de bajo y alto grado en pacientes de edad fértil en la consulta de ginecología del centro Materno pediatrico Zulia, en el período comprendido febrero 2016 -febrero 2018 Maracaibo, Estado Zulia. Métodos: Se realizó un estudio descriptivo retrospectivo en el que se incluyeron mujeres entre los 15 y 44 años, que acudieron a la consulta de Ginecología obstetricia del centro materno pediátrico Zulia para el periodo comprendido febrero 2016 ­ febrero 2018. Se evaluó la normalidad de las variables cuantitativas, empleándose la mediana o el promedio con sus varianzas según su distribución, y frecuencias y proporciones para las variables categóricas. Resultados: Se incluyeron 150 pacientes. La mediana de la edad fue 29 años con rango (R: 15-43 años), la mediana del número de partos 1 (R: 0-3). Uso de métodos anticonceptivos, la mayoría utilizaba ACO. El 60% de las citologías se reportaron como negativas, 20 % lesión de bajo grado (LSIL), 10% células escamosas atípicas de significado indeterminado (ASC-US), 2% lesiones de alto grado (HSIL), 2,3% células escamosas atípicas de significado indeterminado de alto grado ASC-H, 3,3% células glandulares atípicas de significado incierto (ASGUS) y 2% carcinoma invasor. Conclusión: La prevalencia de las anormalidades citológicas fue alta en todos los grupos analizados, sin embargo, existe un mayor número de LSIL hacia la tercera década de la vida y en aquellas que iniciaron su vida sexual después de los 40 años. De igual manera se encontró una relación inversa entre el número de partos, planificación familiar hormonal y aparición de lesiones pre neoplásicas(AU)


To determine the prevalence of cervical intraepithelial lesions of low and high grade in patients of fertile age in the gynecology clinic of the Zulia maternity center, in the period February 2016-February 2018 Maracaibo, Zulia State. Methods: A retrospective descriptive study was carried out that included women between 15 and 44 years old, who attended the obstetrics gynecology clinic of the Zulia pediatric maternity center for the period February 2016-February 2018. The normality of the quantitative variables, using the median or average with their variances according to their distribution, and frequencies and proportions for the categorical variables. Results: 150 patients were included. the median age was 29 years with range (R: 15-43 years), the median number of births 1 (R: 0-3). Using contraceptive methods, most used ACO. 60% of cytologies were reportedas negative, 20% low grade lesion (LSIL), 10% atypical squamous cells of undetermined significance (ASC-US), 2% high grade lesions (HSIL), 2.3% cells Atypical squamous of indeterminate significance of high grade ASC-H, 3.3% atypical glandular cells of uncertain significance (ASGUS) and 2% invasive carcinoma. Conclusion: The prevalence of cytological abnormalities was high in all the groups analyzed, however, there is a greater number of LSIL in the third decade of life and in those who began their sexual life their 40 years. Likewise, an inverse relationship was found between the number of births, hormonal family planning and the appearance of pre-neoplastic lesions(AU)


Subject(s)
Humans , Female , Adolescent , Adult , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/epidemiology , Cervical Intraepithelial Neoplasia/diagnosis , Papillomavirus Infections/diagnosis , Biopsy/instrumentation , Biopsy/statistics & numerical data , Retrospective Studies , Colposcopy/instrumentation , Papanicolaou Test/statistics & numerical data , Squamous Intraepithelial Lesions of the Cervix/pathology
16.
Salud pública Méx ; 60(6): 713-721, Nov.-Dec. 2018. graf
Article in Spanish | LILACS | ID: biblio-1020936

ABSTRACT

Resumen: Objetivos: Discutir el cáncer cervicouterino (CC), el virus del papiloma humano (VPH), el programa de control del CC y proponer alternativas para Chile. Material y métodos: Se analiza el programa nacional del CC 1966-2015 y la guía clínica 2015-2020, la prevalencia de VPH en mujeres y en casos de CC; la infección y serología de VPH; la autotoma; la precisión y rentabilidad del tamizaje con VPH contra el Papanicolaou y las opciones de triaje en VPH AR positivas. Resultados: En Chile mueren 600 mujeres (principalmente de bajos recursos) al año por CC. La cobertura del Papanicolaou es < 70%, sensibilidad muy inferior al test de VPH, por lo que el cambio es rentable. Desde 2015 se vacuna contra VPH a niñas menores de 13 años. Conclusiones: Las condiciones técnicas y económicas existen en Chile para lograr una mejoría sustancial del CC: se sugiere el reemplazo del Papanicolaou por el examen de VPH; tamizaje cada cinco años con opción de autotoma; triaje con base en la tipificación de VPH 16/18 o Papanicolaou.


Abstract: Objective: To discuss cervical cancer (CC), Human Papilloma Virus (HPV), CC control program and propose alternatives for Chile. Materials and methods: We analyzed the national program of CC 1966-2015 and the clinical CC guideline 2015-2020; HPV prevalence in women and in cases of CC; HPV infection and serology; the self-vaginal sample; the accuracy and cost-effectiveness of screening with HPV versus Papanicolaou, and triage options among HPV-AR positives. Results: 600 women die of CC each year in Chile, mainly from low resources. Papanicolaou coverage is <70%; Papanicolaou sensitivity is much lower than HPV test. Change from Papanicolaou to HPV test is cost-effective. Since 2015, girls under 13 have been vaccinated against HPV. Conclusions: There are the technical and economic conditions for a substantial improvement of CC in Chile: replacement of the Papanicolaou by HPV; screening every five years, with the option of self-sampling, and triage based on HPV 16/18 or Papanicolaou typing.


Subject(s)
Humans , Female , Adult , Middle Aged , Uterine Cervical Neoplasms/prevention & control , Early Detection of Cancer/methods , Vaginal Smears/methods , Cervix Uteri/virology , Chile/epidemiology , Follow-Up Studies , Self-Examination , Cost-Benefit Analysis , Practice Guidelines as Topic , Papillomavirus Infections/diagnosis , Educational Status , Human papillomavirus 16/isolation & purification , Human Papillomavirus DNA Tests/economics , Papanicolaou Test/economics , National Health Programs
17.
Rev. bras. ginecol. obstet ; 40(6): 360-368, June 2018. tab, graf
Article in English | LILACS | ID: biblio-958999

ABSTRACT

Abstract Evidence-based clinical guidelines ensure best practice protocols are available in health care. There is a widespread use of human papillomavirus deoxyribonucleic acid (HPVDNA) tests in Brazil, regardless of the lack of official guidelines. On behalf of the Brazilian Association for the Lower Genital Tract Pathology and Colposcopy (ABPTGIC, in the Portuguese acronym), a team of reviewers searched for published evidence and developed a set of recommendations for the use of HPV-DNA tests in cervical cancer screening in Brazil. The product of this process was debated and consensus was sought by the participants. One concern of the authors was the inclusion of these tests in the assessment of women with cytologic atypia and women treated for cervical intraepithelial neoplasia (CIN). Testing for HPV is recommended in an organized screening scenario to identify women with precursor lesions or asymptomatic cervical cancer older than 30 years of age, and it can be performed every 5 years. It also has value after the cytology showing atypical squamous cells of undetermined significance (ASC-US) or low-grade squamous intraepithelial lesions (LSILs) as a triage test for colposcopy, in the investigation of other cytological alterations when no abnormal findings are observed at colposcopy, seeking to exclude disease, or, further, after treatment of high-grade cervical intraepithelial neoplasia, to rule out residual disease.


Resumo O uso de diretrizes clínicas baseadas em evidências visa assegurar as melhores práticas na área de cuidado à saúde. O uso de testes de ácido desoxirribonucleico de papilomavírus humano (DNA-HPV) vem crescendo e se disseminando sem que existam recomendações de uso no cenário brasileiro.Emnomeda Associação Brasileira de Patologia doTrato Genital Inferior e Colposcopia (ABPTGIC), grupos de revisores pesquisaram evidências e formularamrecomendações para o uso dos testes de DNA-HPV no rastreamento do câncer do colo do útero, no seguimento de mulheres com atipias citológicas, e após tratamento de neoplasia intraepitelial cervical (NIC). O produto desse processo foi debatido e foi buscado consenso entre participantes. Os testes de DNA-HPV são recomendados num cenário de rastreamento organizado para identificação de mulheres portadoras de lesões precursoras ou câncer assintomático com mais de 30 anos e podem ser realizados a cada 5 anos. Também têm valor após a citologia mostrando células escamosas atípicas de significado indeterminado (ASC-US) ou lesão intraepitelial escamosa de baixo grau (LSIL) como teste de triagempara colposcopia, na investigação de outras alterações citológicas quando não são observados achados anormais à colposcopia, buscando excluir doença, ou, ainda, no seguimento após tratamento das neoplasias intraepiteliais de alto grau, para exclusão de doença residual.


Subject(s)
Humans , Female , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/virology , Papillomavirus Infections/diagnosis , Human Papillomavirus DNA Tests/standards , Early Detection of Cancer/methods
18.
Rev. inf. cient ; 97(1): i:19-f:28, 2018.
Article in Spanish | LILACS, CUMED | ID: biblio-995160

ABSTRACT

Se realizó un estudio prospectivo, analítico y transversal con el objetivo de identificar la presencia del virus del papiloma humano en mujeres en edad fértil que asisten al centro de salud No. 1 de Azogues, Ecuador, durante el período enero 2015 - febrero 2016. La muestra quedó conformada por las 117 mujeres a las cuales se les realizó la prueba de Papanicolaou para posterior genotipificación del virus. Se determinó el número de parejas sexuales, uso del preservativo, lugar de residencia y nivel de escolaridad. Existió mayor número de mujeres con la prueba de Papanicolaou positivo que HPV positivo. La técnica de PCR constituye un beneficio para la población ecuatoriana(AU)


A prospective, analytical and cross-sectional study was conducted with the objective of identifying the presence of the human papillomavirus in women of childbearing age whom were attended at the health center No. 1 of Azogues, Ecuador, from January 2015 to February 2016. The sample was formed for the 117 women who underwent the Papanicolaou test for subsequent genotyping of the virus. The number of sexual partners, condom use, place of residence and level of education were determined. There were more women with a positive Pap test than positive HPV. The PCR technique constitutes a benefit for the Ecuadorian population(AU)


Subject(s)
Humans , Female , Papillomavirus Infections/diagnosis , Papillomavirus Infections/epidemiology , Papanicolaou Test , Cross-Sectional Studies , Prospective Studies
19.
Clinics ; 73: e679, 2018. tab, graf
Article in English | LILACS | ID: biblio-974917

ABSTRACT

OBJECTIVE: This study investigated serum interleukin-10 (IL-10) levels, changes in peripheral blood CD4+CD25+ regulatory T cell (PBCDT) ratios, and the prognosis of cervical cancer (CC) patients. METHODS: Seventy patients with CC composed the observation group, and 70 healthy subjects composed the control group. The PBCDT ratios in the CC patients and healthy subjects were calculated. Serum IL-10 levels were detected with a double antibody sandwich enzyme-linked immunosorbent assay (ELISA). RESULTS: The PBCDT ratio was higher in the patients with active CC [12.16±2.41%] than in the control subjects [6.34±1.05%]. Serum IL-10 levels were higher in the patients with CC [384±106 pg/ml] than in the control subjects [104±50 pg/ml]; the differences in both PBCDT ratio and IL-10 level were statistically significant (p<0.01). Serum IL-10 levels were positively correlated with PBCDT ratios (r=0.375, p<0.05). The 5-year patient survival rate was significantly higher in the low serum IL-10 group (64.2%) than in the high serum IL-10 group (42.8%, p=0.012). CONCLUSIONS: PBCDT ratios and serum IL-10 levels are related to CC activity. These factors are reciprocally related and influence one another, and both are involved in the development and progression of CC. Low IL-10 expression is beneficial regarding the survival of patients with CC.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Antigens, CD/blood , Uterine Cervical Neoplasms/immunology , Interleukin-10/blood , T-Lymphocytes, Regulatory/cytology , Prognosis , Socioeconomic Factors , Enzyme-Linked Immunosorbent Assay , Biomarkers, Tumor/blood , Case-Control Studies , Uterine Cervical Neoplasms/blood , Uterine Cervical Neoplasms/virology , Interleukin-10/immunology , Papillomavirus Infections/complications , Papillomavirus Infections/diagnosis , Kaplan-Meier Estimate , Flow Cytometry , Neoplasm Staging
20.
Braz. j. med. biol. res ; 51(5): e7098, 2018. tab, graf
Article in English | LILACS | ID: biblio-889086

ABSTRACT

Persistent human papillomavirus (HPV) infection is an essential factor of cervical cancer. This study evaluated the analytical performance of restriction fragment length polymorphism polymerase chain reaction (PCR-RFLP) assay compared to PapilloCheck® microarray to identify human papilloma virus (HPV) in cervical cells. Three hundred and twenty-five women were analyzed. One sample was used for conventional cytology and another sample was collected using BD SurePath™ kit for HPV tests. Eighty samples (24.6%) were positive for HPV gene by PCR-Multiplex and were then submitted to PCR-RFLP and PapilloCheck® microarray. There was a genotyping agreement in 71.25% (57/80) on at least one HPV type between PCR-RFLP and PapilloCheck® microarray. In 22 samples (27.5%), the results were discordant and those samples were additionally analyzed by DNA sequencing. HPV 16 was the most prevalent HPV type found in both methods, followed by HPVs 53, 68, 18, 39, and 66 using PCR-RFLP analysis, and HPVs 39, 53, 68, 56, 31, and 66 using PapilloCheck® microarray. In the present study, a perfect agreement using Cohen's kappa (κ) was found in HPV 33 and 58 (κ=1), very good for HPV 51, and good for types 16, 18, 53, 59, 66, 68, 70, and 73. PCR-RFLP analysis identified only 25% (20/80) HPV coinfection, and PapilloCheck® microarray found 62.5% (50/80). Our Cohen's kappa results indicate that our in-house HPV genotyping testing (PCR-RFLP analysis) could be applied as a primary HPV test screening, especially in low income countries. If multiple HPV types are found in this primary test, a more descriptive test, such as PapilloCheck® microarray, could be performed.


Subject(s)
Humans , Female , Adolescent , Adult , Middle Aged , Aged , Young Adult , Papillomaviridae/genetics , Papillomavirus Infections/diagnosis , Uterine Cervical Neoplasms/diagnosis , Early Detection of Cancer , Genotype , Mass Screening , Microarray Analysis , Papillomavirus Infections/virology , Polymerase Chain Reaction , Polymorphism, Restriction Fragment Length , Sensitivity and Specificity , Uterine Cervical Neoplasms/virology
SELECTION OF CITATIONS
SEARCH DETAIL