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      Estudio de piezas de conización tras cinco años de cribado de cáncer de cérvix con co-test Translated title: Study of conizations of the cervix after five years of cervical cancer screening with co-testing

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          Abstract

          RESUMEN Fundamentos: El cribado del cáncer de cérvix uterino (CCU) ha cambiado con la introducción del test del virus del Papiloma Humano de alto riesgo (VPH-AR) y es necesaria su evaluación. El objetivo de este estudio fue analizar la eficacia del cribado del CCU con las actividades orientadas a la detección y tratamiento precoz para modificar la historia natural del proceso y mejorar su pronóstico. Métodos: Se realizó un cribado con citología y VPH-AR (co-test) según el protocolo SEGO de 2010 entre los años 2011 y 2015 con seguimiento hasta 2017. El test de ADN VPH-AR fue Captura de Híbridos HC2 (Digene®) al inicio (16,1% de los casos) y Cobas 4800 (Roche®) después. La población diana fue el Área de salud de Barbastro. El tratamiento inicial fue la conización con asa (LLETZ). Se estudió la sensibilidad y el valor predictivo positivo de los test, así como la asociación entre variables demográficas y patológicas. Resultados: Se detectaron 238 displasias de alto grado (HSIL) o mayor con una media de edad de 37,9±10,3 años y el 60,0% fueron positivas a los genotipos 16 y/o 18. Se conizaron 220 pacientes (92,4%) y en 25 (11,4%) se precisó reconización o histerectomía. Se diagnosticó HSIL en 220 pacientes (92,4%) y carcinoma invasor en 18 (7,6%), 7 microinvasores (2,9%). En el 14,4% de los conos no se halló HSIL (conos blancos) y el 83,2% tuvo bordes libres. El 52,0% tenía afectación en un solo cuadrante y el tamaño tuvo de media 3,5±3,1mm. Sólo 14 pacientes (6,7%) continuaban enfermas (VPH-AR positivo) tras tratamiento. Se halló, en nuestros casos, asociación estadísticamente significativa entre bordes afectados y edad mayor de 45 años (p=0,005). Conclusiones: El co-test ha detectado lesiones preinvasoras, pequeñas, localizadas en un solo cuadrante y carcinomas microinvasores. La conización con asa fue eficaz logrando la curación del 93,3% de las pacientes.

          Translated abstract

          ABSTRACT Background: Uterine Cervical Cancer (UCC) screening has changed with the introduction of the High Risk Human Papilloma Virus test (HRHPV) and its evaluation is necessary. The objective of this study is to analyze the effectiveness of UCC screening with activities aimed at early detection and treatment to modify the natural history of the process and improve its prognosis. Methods: Cytology and HR-HPV (co-testing) were performed according to the SEGO protocol of 2010 between 2011 and 2015 with follow-up until 2017. The HR-HPV DNA test was HC2 Hybrid Capture (Digene®) at the beginning (16.1% of the cases) and Cobas 4800 (Roche®) afterwards. Target population: Barbastro´s health area. The initial treatment was conization with loop (LLETZ). Sensitivity and Positive Predictive Value of tests were studied, as well as the association between demographic and pathological variables. Results: 238 high-grade dysplasias (HSIL) or more (CIN2+) were detected with a mean age of 37.9±10.3 years and 60.0% were genotype 16 and/or 18 positive. 220 patients (92.4%) underwent conization completed thereafter with reconization or hysterectomy in 25 cases (11.4%). HSIL was diagnosed in 220 cases (92.4%) and invasive carcinoma in 18 (7.6%), 7 microinvasive (2.9%). 14.4% of cones had no HSIL (negative cone) and 83.2% got free margins. 52.0% had involvement in a single quadrant and the mean horizontal extension was 3.5±3.1mm. Only in 14 (6.7%) patients the disease (HR-HPV positive) persisted after treatment. A statistically significant association was found in our cases between affected borders and age over 45 years (p=0.005). Conclusions: The co-test has detected small preinvasive lesions, localized in a single quadrant and microinvasive cancers . Loop conization was effective, achieving the cure of 93.3% of the patients.

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          Most cited references32

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          Overview of the European and North American studies on HPV testing in primary cervical cancer screening.

          Several studies suggest that HPV testing is more sensitive than cytology in primary cervical screening. These studies had different designs and were reported in different ways. Individual patient data were collected for all European and North American studies in which cytology was routinely performed and HPV testing was included as an additional parallel test. More than 60,000 women were included. The sensitivity and specificity of HPV testing were compared with routine cytology, both overall and for ages <35, 35-49 and 50+. The age-specific prevalence of high risk HPV (hr-HPV) was also analysed. HPV testing was substantially more sensitive in detecting CIN2+ than cytology (96.1% vs. 53.0%) but less specific (90.7% vs. 96.3%). The sensitivity of HPV testing was similar in all studies carried out in different areas of Europe and North America, whereas the sensitivity of cytology was highly variable. HPV sensitivity was uniformly high at all ages, whereas the sensitivity of cytology was substantially better in women over the age of 50 than in younger women (79.3% vs. 59.6%). The specificity of both tests increased with age. Positivity rates for HPV testing in women without high-grade CIN were region dependent. These results support the use of HPV testing as the sole primary screening test, with cytology reserved for women who test HPV positive. Large demonstration projects are needed to fully evaluate this strategy. Copyright 2006 Wiley-Liss, Inc.
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            The 2001 Bethesda System: terminology for reporting results of cervical cytology.

            The Bethesda 2001 Workshop was convened to evaluate and update the 1991 Bethesda System terminology for reporting the results of cervical cytology. A primary objective was to develop a new approach to broaden participation in the consensus process. Forum groups composed of 6 to 10 individuals were responsible for developing recommendations for discussion at the workshop. Each forum group included at least 1 cytopathologist, cytotechnologist, clinician, and international representative to ensure a broad range of views and interests. More than 400 cytopathologists, cytotechnologists, histopathologists, family practitioners, gynecologists, public health physicians, epidemiologists, patient advocates, and attorneys participated in the workshop, which was convened by the National Cancer Institute and cosponsored by 44 professional societies. More than 20 countries were represented. Literature review, expert opinion, and input from an Internet bulletin board were all considered in developing recommendations. The strength of evidence of the scientific data was considered of paramount importance. Bethesda 2001 was a year-long iterative review process. An Internet bulletin board was used for discussion of issues and drafts of recommendations. More than 1000 comments were posted to the bulletin board over the course of 6 months. The Bethesda Workshop, held April 30-May 2, 2001, was open to the public. Postworkshop recommendations were posted on the bulletin board for a last round of critical review prior to finalizing the terminology. Bethesda 2001 was developed with broad participation in the consensus process. The 2001 Bethesda System terminology reflects important advances in biological understanding of cervical neoplasia and cervical screening technology.
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              The Lower Anogenital Squamous Terminology Standardization project for HPV-associated lesions: background and consensus recommendations from the College of American Pathologists and the American Society for Colposcopy and Cervical Pathology.

              The terminology for human papillomavirus (HPV)-associated squamous lesions of the lower anogenital tract has a long history marked by disparate diagnostic terms derived from multiple specialties. It often does not reflect current knowledge of HPV biology and pathogenesis. A consensus process was convened to recommend terminology unified across lower anogenital sites. The goal was to create a histopathologic nomenclature system that reflects current knowledge of HPV biology, optimally uses available biomarkers, and facilitates clear communication across different medical specialties. The Lower Anogenital Squamous Terminology (LAST) project was co-sponsored by the College of American Pathologists (CAP) and the American Society for Colposcopy and Cervical Pathology (ASCCP) and included 5 working groups; three work groups performed comprehensive literature reviews and developed draft recommendations. Another work group provided the historical background and the fifth will continue to foster implementation of the LAST recommendations. After an open comment period, the draft recommendations were presented at a consensus conference attended by LAST work group members, advisors and representatives from 35 stakeholder organizations including professional societies and government agencies. Recommendations were finalized and voted upon at the consensus meeting. The final approved recommendations standardize biologically-relevant histopathologic terminology for HPV-associated squamous intraepithelial lesions and superficially invasive squamous carcinomas across all lower anogenital tract sites and detail appropriate use of specific biomarkers to clarify histologic interpretations and enhance diagnostic accuracy. A plan for disseminating and monitoring recommendation implementation in the practicing community was also developed. The implemented recommendations will facilitate communication between pathologists and their clinical colleagues and improve accuracy of histologic diagnosis with the ultimate goal of providing optimal patient care.
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                Author and article information

                Journal
                resp
                Revista Española de Salud Pública
                Rev. Esp. Salud Publica
                Ministerio de Sanidad, Consumo y Bienestar social (Madrid, Madrid, Spain )
                1135-5727
                2173-9110
                2018
                : 92
                : e201810045
                Affiliations
                [3] Barbastro Huesca orgnameAtención Primaria del Sector Barbastro España
                [2] Barbastro Huesca orgnameHospital de Barbastro orgdiv1Servicio de Ginecología y Obstetricia España
                [1] Barbastro Huesca orgnameHospital de Barbastro orgdiv1Servicio de Anatomía Patológica España
                Article
                S1135-57272018000100430 S1135-5727(18)09200000430
                83d680b3-4ee7-466a-9eb7-7f163abbd01b

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 International License.

                History
                : 23 August 2017
                : 18 June 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 32, Pages: 0
                Product

                SciELO Public Health


                Margen,Co-test,Virus del papiloma humano,Neoplasia intraepitelial cervical,Cribado,Conización,Margin,Co-testing,Human papillomavirus,Cervical intraepithelial neoplasia,Screening,Conization

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