Práticas de enfermeiros na prevenção e rastreio do câncer de mama e de colo uterino / Practices performed by nurses in the prevention and screening of breast and cervical cancer / Prácticas de enfermería en la prevención y detección del cáncer de mama y cervicouterino

Objetivo: Identificar como ocorrem as práticas de prevenção e de rastreio do câncer de mama e de colo uterino realizadas por enfermeiros que atuam na Atenção Primária à Saúde do Rio Grande do Sul. Métodos: Trata-se de um estudo de abordagem qualitativa e de natureza analítica e compreensiva. Realizou-se entrevistas semiestruturadas. Os dados foram submetidos à análise de conteúdo do tipo temática proposta por Minayo. Os colaboradores foram 58 enfermeiros atuantes na Atenção Primária à Saúde. Resultados: Os resultados apontam que as práticas se desenvolvem em um contexto de crescente autonomia profissional e de protagonismo da Enfermagem. Aspectos como proximidade e vínculo com a comunidade, outros procedimentos e ações ofertadas nos atendimentos, incluindo a condução clínica/terapêutica, na vigência de sinais e sintomas de infecção, condizem com uma atenção mais ampla às necessidades de saúde e de cuidado às mulheres. Conclusão: O estudo evidencia a importância do respaldo de protocolos para a atuação segura das práticas dos enfermeiros da Atenção Básica, visando a prevenção e rastreio do câncer de mama e de colo uterino. Esses instrumentos devem ser de fácil acesso e constantemente atualizados a fim de garantir a padronização preconizada pelo Ministério da Saúde. (AU)

Objective: To identify how the breast and cervical cancer prevention and screening practices performed by nurses working in Primary Health Care in the state of Rio Grande do Sul occurs. Methods: This is a qualitative study with an analytical and comprehensive nature. The collaborators were 58 nurses working in Primary Health Care. Results: The results indicate that the practices are developed in a context of increasing professional autonomy and the role of Nursing. Aspects such as proximity and bonding with the community, other procedures and actions offered in the consultations, including clinical/therapeutic management in cases of signs and symptoms of infection, are consistent with a broader attention to women's health and care needs. Conclusion: The study highlights the importance of supporting protocols for the safe performance of Primary Care nurses' practices, aiming at the prevention and screening of breast and cervical cancer. These documents must be easily accessible and constantly updated in order to guarantee the standardization recommended by the Ministry of Health. (AU)

Objetivo: Identificar cómo las prácticas de prevención y detección del cáncer de mama y cervicouterino son realizadas por enfermeros que actúan en la Atención Primaria de Salud en Rio Grande do Sul. Métodos: Se trata de un estudio cualitativo de carácter analítico y comprensivo. Los colaboradores fueron 58 enfermeros que actuaban en la Atención Primaria de Salud. Resultados: Los resultados indican que las prácticas se desarrollan en un contexto de aumento de la autonomía profesional y del papel de la Enfermería. Aspectos como la proximidad y el vínculo con la comunidad, otros procedimientos y acciones que se ofrecen en las consultas, incluido el manejo clínico/terapéutico en casos de signos y síntomas de infección, son consistentes con una atención más amplia a las necesidades de salud y cuidado de las mujeres. Conclusión: El estudio destaca la importancia de protocolos para la actuación segura de las prácticas de los enfermeros de Atención Primaria, con el objetivo de la prevención y el tamizaje del cáncer de mama y de cuello uterino. Estos instrumentos deben ser de fácil acceso y constantemente actualizados para garantizar la estandarización recomendada por el Ministerio de Salud. (AU)

Distribuição de óbitos devido ao câncer do colo do útero nos municípios de extrema pobreza, Brasil, 2000 a 2018 / Distribution of deaths due to cervical cancer in extreme poverty municipalities, Brazil, from 2000 to 2018

Resumo Introdução: O câncer do colo uterino (CCU) permanece uma importante causa de morte nas regiões mais pobres do mundo. Objetivo: Analisar tendências da distribuição relativa de óbitos por CCU ocorridos nos municípios de extrema pobreza (EP) do Brasil, de 2000 a 2018. Método: A distribuição relativa de óbitos por CCU nos municípios de EP foi avaliada em relação ao total de óbitos observados em cada Unidade Federativa (UF). Uma modelagem autorregressiva foi usada para avaliar as tendências temporais da distribuição relativa de óbitos de 2000 a 2018. Resultados: De 2000 a 2018, houve 94.065 óbitos por CCU no Brasil, e 10,7% deles ocorreram nos municípios de EP. Seis estados (Amazonas, Roraima, Pará, Amapá, Tocantins e Mato Grosso do Sul) tiveram 100% dos seus municípios de EP reportando a ocorrência desses óbitos. As tendências na distribuição de óbitos nos municípios de EP em relação ao total de óbitos de cada UF seguiram em elevação em onze estados brasileiros. Conclusões: O CCU é doença prioritária das políticas públicas do Brasil, e as tendências desses óbitos observadas nos municípios mais pobres apontam que mais atenção deve ser dada a estas unidades de análise, a fim de melhorar a saúde das pessoas mais pobres.

Abstract Background: Cervical cancer (CC) remains a major cause of death in the poorest regions of the world. Objective: To analyze trends in relative distribution of CC deaths occurred in extreme poverty municipalities, Brazil, from 2000 to 2018. Method: The relative distribution of CC deaths occurred in extreme poverty municipalities was evaluated in relation to total number of CC deaths observed in each Federative Unit (FU). An autoregressive modeling was used to assess the temporal trends in the death distribution, 2000-2018. Results: From 2000 to 2018, there were 94,065 CC deaths, and 10.7% of them were recorded in extreme poverty municipalities. There were six states (Amazonas, Roraima, Pará, Amapá, Tocantins, and Mato Grosso do Sul) with 100.0% of extreme poverty municipalities reporting the occurrence of these deaths. The trends of death distribution in extreme poverty municipalities in relation to the total of deaths in each FU followed in increasing trends in eleven Brazilian FU. Conclusions: CC is a disease prioritized by public policies in Brazil, and the trends of these deaths observed in the poorest municipalities point out that more attention should be given to these units of analysis, in order to improve the health of the poorest people.

Iniquidade racial na mortalidade por câncer de colo de útero no Brasil: estudo de séries temporais de 2002 a 2021 / Racial iniquity in mortality from cervical cancer in Brazil: a time trend study from 2002 to 2021

Resumo O objetivo desse artigo é analisar séries temporais da mortalidade por câncer de colo do útero segundo raça/cor no Brasil de 2002 a 2021. Estudo ecológico de séries temporais com dados do Sistema de Informação sobre Mortalidade e informações populacionais do IBGE. Variações anuais das taxas de mortalidade ajustadas por idade de mulheres de 20 anos ou mais foram estimadas pelo modelo de regressão linear simples com correção de Prais-Winsten. Foram registrados 133.429 óbitos por câncer de colo de útero, destes, 51,2% foram de mulheres negras. As mulheres negras morrem mais e têm menor queda do coeficiente. Houve aumento da desigualdade racial ao longo dos anos. Em 2002, ocorriam 0,08 óbitos/100 mil mulheres a mais na população negra comparada com a população branca; em 2021 esse número é de aproximadamente 1 óbito. Para a elaboração de políticas de saúde da mulher devem ser consideradas as diferenças raciais na implementação de estratégias e metas.

Abstract This ecological study examined time series, from 2002 to 20121, of age-adjusted coefficients of cervical cancer mortality, in Brazil, in women aged 20 years or more, by race. The information sources were Brazil's mortality information system (Sistema de Informação sobre Mortalidade - SIM) and the official bureau of statistics (Instituto Brasileiro de Geografia e Estatística - IBGE). Annual changes in age-adjusted mortality rates were calculated using the Prais-Winsten linear regression method. Black women die more and the rate is decreasing less. Racial inequality has increased over the years. In 2002, there were 0.08 more deaths per 100,000 women in the black population than among white women; in 2021, the number was one death. Health policymaking should consider racial differences in the implementation of strategies and goals.

Underestimated Cervical Cancer among Women over 65 Years Old: Is It Time to Revise the Screening Target Age Group? / Câncer cervical subestimado entre mulheres com mais de 65 anos: É hora de rever a faixa etária alvo do rastreamento?

Abstract Objective To compare cytological and histological results from women > 64 years old who followed the Brazilian national cervical cancer screening guidelines with those who did not. Methods The present observational retrospective study analyzed 207 abnormal cervical smear results from women > 64 years old in a mid-sized city in Brazil over 14 years. All results were reported according to the Bethesda System. The women were divided into those who followed the screening guidelines and those who did not. Results Atypical squamous cells of undetermined significance and low-grade squamous intraepithelial lesion cytology results were found in 128 (62.2%) cases. Of these, 112 (87.5%) had repeated cytology with positive results. The other 79 (38.1%) with abnormal results should have been referred to colposcopy and biopsy. Out of 41 (51.9%) biopsied women, 23 (29.1%) had a confirmed diagnosis of neoplasia or precursor lesion. In contrast, among the 78 (37.7%) biopsied patients, 40 (51.3%) followed the guideline recommendations, with 9 (22.5%) positive biopsies. Of the 38 (48.7%) women who did not follow the guidelines, there were 24 (63.1%) positive results. Women who did not follow the guidelines demonstrated higher chances of cancer and precursor lesions (odds ratio [OR]: 5.904; 95% confidence interval [CI]: 2.188-15.932; p = 0.0002). Conclusion Women > 64 years old who did not follow the national screening protocol showed significant differences in the frequency of abnormal results and severity of diagnosis compared with those who followed the protocol.

Resumo Objetivo Comparar os resultados citológicos e histológicos de mulheres > 64 anos que seguiram as diretrizes nacionais brasileiras de rastreamento do câncer do colo do útero com aquelas que não as seguiram. Método O presente estudo observacional retrospectivo analisou 207 resultados anormais de esfregaço cervical de mulheres > 64 anos de idade em uma cidade de médio porte no Brasil durante 14 anos. Todos os resultados foram relatados de acordo com o Sistema Bethesda. As mulheres foram divididas entre as que seguiram as diretrizes de rastreamento e as que não o fizeram. Resultados Resultados citológicos com células escamosas atípicas de significado indeterminado e lesão intraepitelial escamosa de baixo grau foram encontrados em 128 (62,2%) casos. Destes, 112 (87,5%) repetiram a citologia com resultados positivos. Os outros 79 (38,1%) com resultados anormais deveriam ter sido encaminhados para colposcopia e biópsia. Das 41 (51,9%) mulheres biopsiadas, 23 (29,1%) tiveram diagnóstico confirmado de neoplasia ou lesão precursora. Em contrapartida, entre as 78 (37,7%) pacientes biopsiadas, 40 (51,3%) seguiram as recomendações da diretriz, com 9 (22,5%) biópsias positivas. Entre as 38 (48,7%) mulheres que não seguiram as orientações, houve 24 (63,1%) resultados positivos. As mulheres que não seguiram as diretrizes demonstraram maiores chances de câncer e lesões precursoras (odds ratio [OR]: 5,904; intervalo de confiança [IC] de 95%: 2,188-15,932; p = 0,0002). Conclusão Mulheres > 64 anos que não seguiram a diretriz nacional de rastreamento apresentaram diferenças significativas na frequência de resultados anormais e gravidade do diagnóstico em comparação com aquelas que seguiram a diretriz.

Estandarización de PCR en tiempo real para detección y cuantificación de los oncogenes E7 de seis Virus del Papiloma Humano de Alto Riesgo

El cáncer de cuello uterino es causado por la infección persistente del epitelio cervical con los genotipos de alto riesgo del Virus del Papiloma Humano. Para su detección se realizan pruebas moleculares que detectan el gen L1 del VPH. Este gen puede perderse hasta en el 11 % de los casos durante la integración del ADN viral en el genoma del hospedero originando falsos negativos. Por otra parte, el oncogén E7 se expresa durante todas las etapas de progresión de la enfermedad. El objetivo de este trabajo fue estandarizar una PCR en tiempo real del oncogén E7 (E7-qPCR) para genotipificación y cuantificación de 6 VPH-AR. Los resultados muestran que la E7- qPCR amplificó VPH-16, -18, -31, -33, -35 y -45 con una alta sensibilidad con límites de detección desde 102 copias, eficiencias entre 90 y 110 %, valores R2 > 0,97 y análisis de curva de fusión que revelan productos específicos.

Cervical cancer is caused by persistent infection of the cervical epithelium with the high-risk genotypes of the Human Papilloma Virus (HR-HPV). For its detection, molecular tests are carried out that detect the L1 gene of HPV. This gene can be lost in up to 11 % of cases during the integration of viral DNA into the host genome, causing false negatives. On the other hand, the E7 oncogene is expressed during all stages of disease progression. The aim of this work was to standardize a real-time PCR of the E7 oncogene (E7-qPCR) for genotyping and quantification of 6 HR-HPV. The results show that the E7-qPCR amplified HPV-16, -18, -31, -33, -35 and -45 with high sensitivity with detection limits from 102 copies, efficiencies between 90 and 110 %, R2 values >0,97 and melting curve analysis revealing specific products.

Desmistificando a coleta citopatológica: uma forma de prevenir o câncer de colo do útero / Demystifying cytopathological collection: a way to prevent cervical cancer

Objetivo: Relatar uma ação de Educação em Saúde sobre a prevenção do câncer de colo uterino por meio da citologia. Método: Trata-se de um relato de experiência vivenciado por uma enfermeira durante uma ação a dez mulheres sobre a importância da coleta citopatológica para prevenção desse câncer. Foi realizada em maio de 2023, em uma unidade básica de saúde e dividida em três momentos: no primeiro, foi realizado um Brainstorm, no segundo um pré-teste utilizando uma dinâmica e o terceiro momento foi o pós-teste. Resultado: Foi evidenciado que as mulheres não tinham entendimento correto sobre a coleta citopatológica, as etapas do exame, ou seja, o conhecimento era insuficiente e não se sentiam preparadas para falar sobre o assunto. Conclusão: A ação permitiu um maior conhecimento das usuárias e das suas necessidades de entendimento e esclarecimentos sobre a coleta citopatológica, levando em consideração a sua importância no rastreio precoce de câncer de colo do útero.(AU)

Objective: To report a Health Education action on the prevention of cervical cancer through cytology. Method: This is an experience report lived by a nurse during an action with ten women on the importance of cytopathological collection for the prevention of this cancer. It was carried out in May 2023, in a basic health unit and divided into three moments: in the first, a Brainstorm was performed, in the second, a pre-test using a dynamic and the third moment was the post-test. Result: It was evidenced that the women did not have a correct understanding of the cytopathological collection, the examination steps, that is, the knowledge was insufficient and they did not feel prepared to talk about the subject. Conclusion: The action allowed for a greater knowledge of the users and their needs for understanding and clarification about the cytopathological collection, taking into account its importance in the early screening of cervical cancer.(AU)

Objetivo: Relatar un programa de educación sanitaria sobre la prevención del cáncer de cuello de útero mediante la citología. Método: Este es un informe de la experiencia de una enfermera durante una acción con diez mujeres sobre la importancia de la recolección citopatológica para prevenir este cáncer. Tuvo lugar en mayo de 2023 en una unidad básica de salud y se dividió en tres etapas: la primera fue una lluvia de ideas, la segunda fue un pre-test mediante dinámicas y la tercera fue el post-test. Resultados: Quedó claro que las mujeres no tenían una comprensión correcta de la colecta citopatológica y de las etapas del examen, o sea, sus conocimientos eran insuficientes y no se sentían preparadas para hablar del tema. Conclusión: La acción permitió una mayor concienciación de las usuarias y su necesidad de comprensión y aclaración sobre la colecta citopatológica, teniendo en cuenta su importancia en el cribado precoz del cáncer de cuello uterino.(AU)

Perfil sociodemográfico e citológico de mulheres em investigação de neoplasia cérvico-uterina em um serviço secundário / Sociodemographic and cytological profile of women undergoing investigation for cervical-uterine neoplasia in a secondary service

Objetivo: analisar o perfil sociodemográfico e comparar as diferenças das características de mulheres com alterações citológicas de alto grau em um serviço da atenção secundária. Método: estudo transversal retrospectivo de 2017 a 2021 realizado em 160 prontuários (CAAE 51800621.3.0000.5240). Resultados: predominaram mulheres com média de idade 40,7 anos, escolaridade abaixo do ensino médio, tiveram um a três filhos, não utilizavam preservativos e anticoncepcionais, não tabagistas e com alterações citopatológicas alto grau. As características com maiores percentuais para lesões citopatológicas de alto grau foram mulheres com quatro ou mais gestações, idade do parto menor ou igual a 18 anos, coitarca menor ou igual a 15 anos e tabagistas. Conclusão: serviços da rede de atenção, especialmente da atenção primária à saúde, devem capacitar permanentemente os profissionais visando cumprimento de fluxos assistenciais preconizadas pelas recomendações das diretrizes brasileiras de rastreamento da neoplasia cérvico-uterina atentando ao perfil encontrado de mulheres encaminhadas a atenção secundária.(AU)

Objective: analyzes the sociodemographic profile and compare the differences in the characteristics of women with high-grade cytological alterations in a secondary care service. Method: retrospective cross-sectional study from 2017 to 2021 carried out in 160 medical records (CAAE 51800621.3.0000.5240). Results: women predominated with a mean age of 40.7 years, education below high school, had one to three children, did not use condoms and contraceptives, non-smokers and with high-grade cytopathological alterations. The characteristics with the highest percentages for high-grade cytopathological lesions were women with four or more pregnancies, age at birth less than or equal to 18 years, coitarche less than or equal to 15 years, and smokers. Conclusion: services of the care network, especially primary health care, should permanently train professionals in order to comply with the care flows recommended by the recommendations of the Brazilian guidelines for screening cervical uterine neoplasia, paying attention to the profile found of women referred to secondary care.(AU)

Objetivo: analizar el perfil sociodemográfico y comparar las diferencias en las características de mujeres con alteraciones citológicas de alto grado en un servicio de segundo nivel de atención. Método: estudio transversal retrospectivo de 2017 a 2021 realizado en 160 historias clínicas (CAAE 51800621.3.0000.5240). Resultados: predominaron las mujeres con edad media de 40,7 años, escolaridad inferior a la secundaria, con uno a tres hijos, no usuarias de preservativo y anticonceptivos, no fumadoras y con alteraciones citopatológicas de alto grado. Las características con mayor porcentaje de lesiones citopatológicas de alto grado fueron mujeres con cuatro o más embarazos, edad al nacer menor o igual a 18 años, coitarquia menor o igual a 15 años y fumadoras. Conclusión: servicios de la red de atención, especialmente la atención primaria a la salud, deben capacitar permanentemente a los profesionales para cumplir con los flujos de atención recomendados por las recomendaciones de las directrices brasileñas para el tamizaje de la neoplasia cérvico-uterina, prestando atención al perfil encontrado de las mujeres referidas atención secundaria.(AU)

Survival of patients living with HIV and cancer in Cali, Colombia

Background: People living with HIV have an increased risk of cancer compared to the general population. However, with the increase in life expectancy and advances in antiretroviral therapy, the survival of patients with cancer and HIV has changed. Objective: To determine the survival of patients living with HIV and cancer in Cali, Colombia Methods: A retrospective cohort study was conducted at the Fundación Valle del Lili, Cali, Colombia. Data from the HIV database was crossed with data from the hospital and population-based cancer registries between 2011-2019. Patients <18 years, limited available clinical information on the diagnosis and treatment of HIV and cancer, and non-oncological tumor diagnosis were excluded. Results: A total of 173 patients were included. The frequencies of AIDS-defining neoplasms were: Non-Hodgkin lymphoma (42.8%), Kaposi sarcoma (27.8%), and cervical cancer (4.6%). Overall survival was 76.4% (95% CI 68.9-82.3) at five years. Poorer survival was found in patients with AIDS-defining infections (56.9% vs. 77.8%, p=0.027) and non-AIDS-defining infections (57.8% vs. 84.2%, p=0.013), while there was better survival in patients who received antiretroviral therapy (65.9% vs. 17.9%, p=0.021) and oncological treatment (66.7% vs. 35.4%, p<0.001). The presence of non-AIDS-defining infections increases the risk of dying (HR = 2.39, 95% CI 1.05-5.46, p=0.038), while oncological treatment decreases it (HR = 0.33, 95% CI 0.14-0.80, p=0.014). Conclusions: In people living with HIV, Non-Hodgkin lymphoma and Kaposi sarcoma are the most common neoplasms. Factors such as AIDS-associated and non-AIDS-associated infections have been identified as determinants of survival. Cancer treatment seems to improve survival.

Antecedentes: Las personas que viven con VIH tienen un riesgo mayor de cáncer en comparación con la población general. Sin embargo, con el aumento de la esperanza de vida y los avances en la terapia antirretroviral, la supervivencia de los pacientes con cáncer y VIH ha cambiado. Objetivo: Determinar la supervivencia de los pacientes que viven con VIH y cáncer en Cali, Colombia. Métodos: Se realizó un estudio de cohorte retrospectivo en la Fundación Valle del Lili, Cali, Colombia. Los datos de la base de datos de VIH se cruzaron con los datos de los registros de cáncer de base hospitalaria y poblacional entre 2011-2019. Se excluyeron los pacientes <18 años, con información clínica limitada disponible sobre el diagnóstico y tratamiento del VIH y el cáncer y los casos con diagnóstico de tumor no oncológico. Resultados: Se incluyeron un total de 173 pacientes. Las frecuencias de neoplasias definitorias de SIDA fueron: linfoma no Hodgkin (42.8%), sarcoma de Kaposi (27.8%) y cáncer cervical (4.6%). La supervivencia global fue del 76.4% (IC 95% 68.9-82.3) a los cinco años. Se encontró una peor supervivencia en pacientes con infecciones definitorias de SIDA (56.9% vs. 77.8%, p=0.027) e infecciones no definitorias de SIDA (57.8% vs. 84.2%, p=0.013), mientras que hubo una mejor supervivencia en pacientes que recibieron terapia antirretroviral (65.9% vs. 17.9%, p=0.021) y tratamiento oncológico (66.7% vs. 35.4%, p<0.001). La presencia de infecciones no definitorias de SIDA aumentó el riesgo de morir (HR = 2.39, IC 95% 1.05-5.46, p=0.038), mientras que el tratamiento oncológico lo disminuyó (HR = 0.33, IC 95% 0.14-0.80, p=0.014). Conclusiones: En las personas que viven con VIH, el linfoma no Hodgkin y el sarcoma de Kaposi son las neoplasias más comunes. Se han identificado factores como las infecciones asociadas al SIDA y las infecciones no asociadas al SIDA como determinantes de la supervivencia. El tratamiento del cáncer parece mejorar la supervivencia.

Impacto de una intervención educativa en el conocimiento de la prevención de la neoplasia del cuello uterino en estudiantes de enfermería y sus familias / Impact of an educational intervention on the knowledge of cervical cancer prevention in nursing students and their families

Resumen El objetivo fue evaluar el impacto de una intervención educativa en el conocimiento de la prevención de la neoplasia del cuello uterino en un grupo de estudiantes de enfermería y sus familias bajo el modelo de Nola Pender. El método fue un estudio cuasi-experimental con muestra no probabilística; se evaluó el conocimiento sobre la prevención y el control de la neoplasia del cuello uterino antes y después de una intervención educativa utilizando la encuesta validada por la Dra. Dina Rubio en 2009 con su previo consentimiento. La información fue tabulada mediante una hoja de cálculo del programa Microsoft Excel; se calcularon frecuencias específicas y frecuencias absolutas, y para el análisis se tomó el modelo de Nola Pender. Los resultados desde el punto de vista estadístico fueron que hay una información instalada en la estructura mental de las participantes sobre lo que es, implica y comporta como riesgo la neoplasia del cuello uterino. La percepción que está en el fondo de sus creencias denota un nivel favorable de conciencia y claridad, lo que posibilita que en las prácticas de autocuidado y la aplicación de la citología se reconozca frecuencia de uso, regularidad en el tiempo y atención a los resultados. En conclusión, al evaluar el impacto de la intervención educativa a través del modelo de Nola Pender se encontraron cambios en los conocimientos y un modelo ideal para utilizarse en grupos poblacionales heterogéneos en edades, niveles educativos, formación profesional y hábitos sexuales, porque integra la experiencia personal, el entorno y las prácticas de salud como tres elementos sin los cuales no es posible practicar el autocuidado y la cultura de intervención.

Abstract A large number of factors influence the level of information that people may have regarding cervical cancer and the way to prevent it, since education is not only provided by health personnel but also by the family. When making important decisions regarding self-care, people must have effective sex education, in which protection is of vital importance, since misinformation is one of the main factors that promotes cervical cancer. The objective of this study was to evaluate the impact of an educational intervention on the knowledge of cervical cancer prevention in a group of nursing students and their families under the Nola Pender model. The method used in the study was a quasi-experimental, non-probabilistic sample; the knowledge about cervical cancer prevention and control was evaluated before and after the intervention, using the survey validated by Dr. Dina Rubio in 2009 (with her consent). The information was included in a Microsoft Excel spreadsheet: the items were placed in columns and the subjects were included in the rows. Specific frequencies and absolute frequencies were calculated, the Nola Pender model was used for the analysis. The units of analysis were selected manually or randomly and these selections do not depend on probability but are generated based on the criteria of the researcher or the specific needs of the research. From a statistical point of view, information about what cervical cancer is, what it implies and how it behaves as a risk is engrained in the mental structure of the participants. To these implications of a technical and methodological nature, others of a structural and conceptual nature are added to build an integrative analysis of the results obtained in the field work. In this case, they include opinions, appraisals, judgments, and evaluations about cervical cancer. This research was organized in the following stages: (1) Evaluation of prior knowledge on cervical cancer prevention and control. The starting point of the investigation was the recognition that the participating women had a basic conceptual scaffolding, acquired through their own experience and self-training or by going to sources such as academia, social networks, specialized magazines, health institutions, medical staff and other specialists who help in the creation of an important background to consolidate an individual perspective. (2) Application of an educational intervention. In this stage, designed workshops were implemented and evaluated by the students with the advice of a teacher, and included the following topics: general concepts, signs and symptoms, associated risk factors, screening techniques, benefits, and exam precautions. The students contributed a theoretical, methodological and evaluative foundation to the design of each workshop, considering the expected training objectives, the characteristics included in its development, and a diversity of pedagogical actions that guarantee the efficiency of the transmitted message. (3) Reevaluation of the knowledge acquired. By applying a post-test, the knowledge acquired during the implementation of the workshops was recovered and resized. In this stage, the variability of the responses measured the transforming effect of the training, either by improving the knowledge acquired or by introducing new knowledge into the participant's cognitive model. The perception that participants have about self-care practices is linked to their beliefs, denoting a favorable level of awareness and clarity, which makes it possible for the application of cytology to recognize the frequency of use, regularity over time, and attention to the results. In conclusion, when evaluating the impact of educational intervention through the Nola Pender model, changes in knowledge were found. Results also indicate that this is an ideal model for employees in heterogeneous popu lation groups in ages, educational levels, professional training, and sexual habits, because it integrates personal experience, the environment and health practices as three elements without which it is not possible to practice self-care and the culture of intervention.

Intervención educativa prevención del cáncer cérvico-uterino en mujeres del consultorio 7, Las Flores. Nuevitas

Fundamento: el cáncer cérvico-uterino representa el 10 % de todas las causas de cáncer. Su prevenciòn resulta imprescindible y educar al respecto es fundmaental. Objetivo: describir resultados de una intervención educativa sobre el cáncer cérvico-uterino en mujeres del Consultorio 7, Nuevitas. Métodos estudio de intervención que incluyó 86 mujeres de 18 a 55 años de edad, del Policlínico Comunitario Docente X Aniversario, de Nuevitas, Camagüey. Se aplicó una encuesta que permitió medir el nivel de conocimientos antes y después de la intervención educativa. Se analizaron las variables edad, nivel de escolaridad, conocimiento sobre factores de riesgo y manifestaciones sospechosas y sobre la prueba citológica. Resultados: predominaron las mujeres con nivel primario terminado y las menores de 44 años. Al inicio del estudio mostraron bajo conocimiento sobre factores de riesgo, sobre todo el inicio de relaciones sexuales tempranas (54,6 %) y las infecciones por el papiloma virus, VIH/sida y el herpes genital (56,9 %). El 65, 11 % no conocía que el flujo vaginal es una manifestación sospechosa, y el 82, 5 % poseía un conocimiento insuficiente sobre la prueba citológica. Todos estos parámetros aumentaron por encima del 80 % y la mayoría del 95 % después de la intervención, excepto el conocimiento sobre la dieta inadecuada como factor de riesgo, que solo ascendió a 70, 9 %. Conclusiones: se logró un incremento notable de los conocimientos sobre los factores de riesgo, las manifestaciones sospechosas y la importancia de la prueba citològica, lo cual implica un beneficio en la prevención del cáncer cérvico-uterino.

Background: cervical-uterine cancer represents 10% of all cancer causes. Its prevention is essential and educating about it is fundamental. Objective: to describe the result of an educational intervention on cervical-uterine cancer in women from doctor's office 7, Nuevitas. Methods: intervention study that included 86 women from 18 to 55 years of age, from the X Anniversary Community Teaching Polyclinic, in Nuevitas, Camagüey. A survey was applied that allowed measuring the knowledge level before and after the educational intervention. The analyzed variables were age, educational level, knowledge about risk factors and suspicious manifestations, and about the cytological test. Results: there was a predominance of women with completed primary level and those under 44 years of age. At the beginning of the study, they showed low knowledge about risk factors, especially the beginning of early sexual relations (54.6%) and infections by papilloma virus, HIV/AIDS and genital herpes (56.9%). 65.11% did not know that vaginal discharge is a suspicious manifestation, and 82.5% had insufficient knowledge about the cytological test. All these parameters increased above 80% and most of them 95% after the intervention, except knowledge about inadequate diet as a risk factor, which only rose to 70.9%. Conclusions: a notable increase in knowledge about risk factors, suspicious manifestations and the importance of the cytological test was achieved, which implies a benefit in the prevention of cervical-uterine cancer.

Condiciones que favorecen el desarrollo del cáncer cervicouterino en la adolescencia

La adolescencia es un período de la vida del ser humano caracterizado por diversos cambios biológicos, físicos y emocionales que condicionan las peculiaridades de la vida adulta posterior. El cáncer del cuello uterino tiene importancia médica, socioeconómica y humana. Es el más curable, más fácilmente diagnosticable y el más prevenible de todos los cánceres. Sus efectos negativos suelen ser devastadores para el estado de salud general de las mujeres que lo adquieren. Se realizó una revisión bibliográfica de artículos en el período comprendido desde enero a diciembre 2021. Se utilizaron las bases de datos científicas: Pubmed, Scielo y el buscador Google Académico. La indagación se realizó en artículos nacionales e internacionales, a texto completo, estos se sometieron a una lectura crítica y se utilizaron como métodos teóricos: análisis histórico-lógico y análisis-síntesis y entre los empíricos: el análisis documental. El objetivo de esta revisión es mostrar las condiciones biológicas y conductuales que favorecen el desarrollo del cáncer cervicouterino en la adolescencia.

Adolescence is a human life period characterized by various biological, physical and emotional changes that influence the later adult life. Cervical cancer has medical, socioeconomic, and human significance. It is the most curable, easily diagnosed and even the most preventable of all cancers. Its negative effects are often devastating for the women' general state of health who acquire it. A bibliographic review of articles was carried out from January to December 2021. The scientific databases used were: Pubmed, Scielo and the Google Scholar search engine. The search was made in national and international articles, with full texts, these were subjected to a critical reading using as theoretical methods: historical-logical analysis and analysis-synthesis and among the empirical ones: documentary analysis. The objective of this review is to show the biological and behavioral conditions that favor the development of cervical cancer in adolescence.

Perfil sociodemográfico de mulheres com câncer de colo do útero: avaliação da qualidade de vida / Sociodemographic profile of women with cervical cancer: quality of life evaluation / Perfil sociodemográfico de mujeres con cáncer de cuello uterino: evaluación de la calidad de vida

O câncer de colo do útero é um importante problema de saúde pública. Este trabalho objetiva avaliar a qualidade de vida de mulheres com câncer de colo do útero. Para tanto, foi realizado um estudo transversal com abordagem quantitativa, realizado com 175 mulheres em tratamento do câncer do colo do útero em um hospital de referência. Predominou a faixa etária de 40 a 59 anos (56%) com o diagnóstico, a maioria das pacientes eram pardas (69,8%), com ensino fundamental incompleto (44,7%) e casadas (42,3%). Com relação aos dados clínicos, a maioria referiu menarca aos > 12 anos (89,7%), coitarca aos < 18 (74,3%) e até cinco parceiros sexuais (88,6%). O tumor mais presente foi o carcinoma de células escamosas, com 90,3% dos casos; o estadiamento T3b/IIIB esteve em 41% dos registros; e 42,8% dos casos associaram radioterapia e quimioterapia para tratamento. A qualidade de vida pelo estado de saúde global foi satisfatória, com 72,1. Quanto aos domínios, na escala funcional a função social obteve média de 84,2, e, na escala de sintomas, a dificuldade financeira de 66,7. A qualidade de vida foi considerada satisfatória entre as pacientes, o que sinaliza melhoria das terapêuticas em saúde, planos de cuidado eficazes e trabalho em equipe multiprofissional que condiciona uma boa prática clínica.

Cervical cancer is an important public health problem. This work aims to evaluate the quality of life of women with cervical cancer. To that end, a cross-sectional study with a quantitative approach was carried out with 175 women undergoing treatment for cervical cancer at a reference hospital. There was a predominance of the age group between 40 and 59 years old (56%) at diagnosis, most patients were brown (69.8%), with incomplete primary education (44.7%), and married (42.3%). Regarding clinical data, most reported menarche > 12 years old (89.7%), coitarche with < 18 years old (74.3%), and had up to 5 sexual partners (88.6%). The most frequent tumor was squamous cell carcinoma, with 90.3% of the cases; the T3b/IIIB staging showed in 41% of the records; and 42.8% of the cases associated radiotherapy and chemotherapy for treatment. The quality of life by global health status was satisfactory, with 72.1. Regarding the domains, on the functional scale, the social function obtained a mean of 84.2 and, in the scale of symptoms, the financial difficulty, of 66.7. The quality of life was considered satisfactory among the patients, which indicates the improvement of the therapies in health, effective care plans, and multidisciplinary teamwork that conditions good clinical practice.

El cáncer de cuello uterino es un importante problema de salud pública. El objetivo de este trabajo fue evaluar la calidad de vida de mujeres con cáncer de cuello uterino. Para ello, se realizó un estudio transversal, de enfoque cuantitativo, con 175 mujeres en tratamiento por cáncer de cuello uterino en un hospital de referencia. Predominó el grupo etario de 40 a 59 años, con un 56% al momento del diagnóstico, la mayoría de las pacientes eran pardas (69,8%), el nivel de educación primaria incompleta (44,7%) y casadas (42,3%). Con respecto a los datos clínicos, la mayoría refirió menarquia > 12 años (89,7%), edad de coito < 18 años (74,3%) y tuvo hasta cinco parejas sexuales (88,6%). El tumor más frecuente fue el carcinoma epidermoide en el 90,3% de los casos, la estadificación T3b/IIIB estuvo presente en el 41% de los registros, y en el 42,8% de los casos se asoció radioterapia y quimioterapia para el tratamiento. La calidad de vida por estado de salud global fue satisfactoria en un 72,1. En cuanto a los dominios, en la escala funcional, la función social obtuvo el promedio del 84,2, y en la escala de síntomas, la dificultad financiera presentó el 66,7. La calidad de vida se consideró satisfactoria entre las pacientes, lo que señala la mejora de las terapias de salud, planes de atención efectivos y trabajo en equipo multidisciplinario que permite una buena práctica clínica.

A New Brazilian Device for Cervical Cancer Screening: Acceptability and Accuracy of Self-sampling / Um Novo Dispositivo Brasileiro para Diagnóstico de Câncer Cervical: Aceitabilidade e Precisão da Autoamostragem

Abstract Objective To evaluate the accuracy and patient acceptability toward self-sampling using a new device - SelfCervix® - for detecting HPV-DNA. Methods A total of 73 women aged 25-65 who underwent regular cervical cancer screening from March to October 2016 were included. Women performed self-sampling followed by a physician-sampling, and the samples were analyzed for HPV-DNA. After that, patients were surveyed about their acceptability of self-sampling. Results HPV-DNA detection rate of self-sampling presented high accuracy and was similar to physician-collection. Sixty-four (87.7%) patients answered the acceptability survey. Most patients (89%) considered the self-sampling comfortable, and 82.5% preferred self-sampling to physician-sampling. The reasons cited were time-saving and convenience. Fifty-one (79.7%) reported that they would recommend self-sampling. Conclusion Self-sampling using the new Brazilian device SelfCervix® is not inferior in HPV-DNA detection rate compared with physician-collection, and patients are supportive of the method. Therefore, it might be an option to reach under-screened populations in Brazil.

Resumo Objetivo Avaliar a acurácia e aceitabilidade da auto-coleta utilizando um novo coletor - SelfCervix® - para a detecção de DNA de HPV. Métodos Foram incluídas no estudo 73 mulheres com idade entre 25-65 anos que realizaram seu rastreamento regular do câncer de colo do útero entre Março e Outubro de 2016. Estas mulheres realizaram a auto-coleta, seguida de coleta profissional e as amostras foram analisadas paraa presença de DNA de HPV. Após, elas responderam um questionário sobre a experiência da auto-coleta. Resultados As taxas de detecção de DNA de HPV por auto-coleta foram altas e similares as da coleta profissional. Sessenta e quatro (87,7%) pacientes responderam o questionário de experiência. A maioria (89%) considerou a auto-coleta confortável, e 82,5% preferiram o método comparado a coleta profissional. As razões citadas foram economia de tempo e conveniência. Cinquenta e uma (79,7%) mulheres confirmaram que recomendariam a auto-coleta. Conclusão Auto-coleta utilizando o novo coletor desenvolvido no Brasil não é inferior na detecção de DNA de HPV quando comparada a coleta profissional, e apresenta uma boa aceitabilidade pelas mulheres. Desta maneira, pode ser uma opção para alcançar populações que não realizam o rastreamento padrão.

Prevenção do câncer de colo uterino em homens transgênero: desafios e novas perspectivas de rastreio / Prevention of cervical cancer in transgender men: challenges and new screening perspectives

O homem transgênero apresenta alta susceptibilidade às neoplasias de colo uterino devido à escassez de exames preventivos. O estudo objetiva levantar informações acerca dos desafios e estratégias para a promoção do rastreio e prevenção do câncer cervical em homens transgênero. Trata-se de uma revisão integrativa, desenvolvida em seis etapas a partir da pergunta norteadora: "Quais os desafios e estratégias atuais para a promoção do rastreio efetivo e prevenção de câncer de colo uterino em homens transgênero?". Utilizaram-se descritores combinados com operador booleano "cervical cancer" AND "transgender persons", e foram incluídos artigos completos de 2018 a 2022. Verificou-se que os desafios enfrentados incluem preconceito, despreparo profissional e susceptibilidade à disforia de gênero. Estudos mostraram benefícios relacionados ao uso de swabs vaginais autocolhidos para reduzir o impacto psicológico do exame Papanicolaou, com vistas a reduzir os desafios enfrentados por essa população, e a necessidade de implementar estratégias que aumentem a adesão aos serviços de saúde.

Transgender men are highly susceptible to cervical cancer due to the lack of preventive screening exams. This study aims to gather information about the challenges and strategies for promoting cervical cancer screening and prevention in transgender men. This is an integrative review, developed in six stages, based on the guiding question: "What are the current challenges and strategies for promoting effective screening and prevention of cervical cancer in transgender men?". Descriptors combined with Boolean operator "cervical cancer" AND "transgender persons" were used and full articles from 2018 to 2022 were included. It was found that the challenges faced include prejudice, professional unpreparedness and susceptibility to gender dysphoria. Studies have shown benefits related to the use of self-collected vaginal swabs to reduce the psychological impact of the Pap smear exam, aiming to reduce the challenges faced by this population and to implement strategies to increase adherence to health services.

The mechanism of S100A7 inducing the migration and invasion in cervical cancer cells / 中华肿瘤杂志

Objective: To investigate the mechanism of S100A7 inducing the migration and invasion in cervical cancers. Methods: Tissue samples of 5 cases of cervical squamous cell carcinoma and 3 cases of adenocarcinoma were collected from May 2007 to December 2007 in the Department of Gynecology of the Affiliated Hospital of Qingdao University. Immunohistochemistry was performed to evaluate the expression of S100A7 in cervical carcinoma tissues. S100A7-overexpressing HeLa and C33A cells were established with lentiviral systems as the experimental group. Immunofluorescence assay was performed to observe the cell morphology. Transwell assay was taken to detect the effect of S100A7-overexpression on the migration and invasion of cervical cancer cells. Reverse transcription-quantitative real-time polymerase chain reaction (RT-qPCR) was used to examine the mRNA expressions of E-cadherin, N-cadherin, vimentin and fibronectin. The expression of extracellular S100A7 in conditioned medium of cervical cancer cell was detected by western blot. Conditioned medium was added into Transwell lower compartment to detect cell motility. Exosomes were isolated and extracted from the culture supernatant of cervical cancer cell, the expressions of S100A7, CD81 and TSG101 were detected by western blot. Transwell assay was taken to detect the effect of exosomes on the migration and invasion of cervical cancer cells. Results: S100A7 expression was positively expressed in cervical squamous carcinoma and negative expression in adenocarcinoma. Stable S100A7-overexpressing HeLa and C33A cells were successfully constructed. C33A cells in the experimental group were spindle shaped while those in the control group tended to be polygonal epithelioid cells. The number of S100A7-overexpressed HeLa cells passing through the Transwell membrane assay was increased significantly in migration and invasion assay (152.00±39.22 vs 105.13±15.75, P<0.05; 115.38±34.57 vs 79.50±13.68, P<0.05). RT-qPCR indicated that the mRNA expressions of E-cadherin in S100A7-overexpressed HeLa and C33A cells decreased (P<0.05) while the mRNA expressions of N-cadherin and fibronectin in HeLa cells and fibronectin in C33A cells increased (P<0.05). Western blot showed that extracellular S100A7 was detected in culture supernatant of cervical cancer cells. HeLa cells of the experimental group passing through transwell membrane in migration and invasion assays were increased significantly (192.60±24.41 vs 98.80±47.24, P<0.05; 105.40±27.38 vs 84.50±13.51, P<0.05) when the conditional medium was added into the lower compartment of Transwell. Exosomes from C33A cell culture supernatant were extracted successfully, and S100A7 expression was positive. The number of transmembrane C33A cells incubated with exosomes extracted from cells of the experimental group was increased significantly (251.00±49.82 vs 143.00±30.85, P<0.05; 524.60±52.74 vs 389.00±63.23, P<0.05). Conclusion: S100A7 may promote the migration and invasion of cervical cancer cells by epithelial-mesenchymal transition and exosome secretion.

Clinicopathological features and prognostic factors of patients with lung metastasis of stage Ⅰa~Ⅲb cervical cancer / 中华肿瘤杂志

Objective: To investigate the clinicopathological features and prognostic factors of lung metastasis in patients with cervical cancer after treatment. Methods: The clinicopathological data of 191 patients with lung metastasis of stage Ⅰa-Ⅲb cervical cancer (FIGO 2009 stage) treated in Sichuan Cancer Hospital from January 2007 to December 2020 were analyzed retrospectively. Kaplan Meier method and Log rank test were used for survival analysis, and Cox regression model was used for prognostic factors analysis. Results: Among 191 patients with lung metastasis of cervical cancer, pulmonary metastasis was found in 134 patients (70.2%) during follow-up examination, and 57 patients (29.8%) had clinical symptoms (cough, chest pain, shortness of breath, hemoptysis, and fever). The time from the initial treatment of cervical cancer to the discovery of lung metastasis was 1-144 months in the whole group, with a median time of 19 months. Univariate analysis of the prognosis of lung metastasis after treatment of cervical cancer showed that the diameter of cervical tumor, lymph node metastasis, positive surgical margin, disease-free interval after treatment of cervical cancer, whether it is accompanied by other metastasis, the number, location and maximum diameter of lung metastasis, and the treatment method after lung metastasis are related to the prognosis of patients with lung metastasis of cervical cancer. Multivariate analysis showed that the number of lung metastases and other site metastases in addition to lung metastases were independent factors affecting the prognosis of patients with lung metastases of cervical cancer (P<0.05). Conclusions: For patients with cervical cancer, attention should be paid to chest CT examination during follow-up to guard against the possibility of lung metastasis after treatment. Besides lung metastasis, other site metastasis and the number of lung metastasis are independent factors affecting the prognosis of patients with lung metastasis of cervical cancer. For patients with lung metastasis after treatment of cervical cancer, surgical treatment is an effective treatment. It is necessary to strictly grasp the surgical indications, and some patients can achieve long-term survival. For patients with lung metastasis of cervical cancer who are not suitable for resection of lung metastasis, the remedial treatment of chemotherapy with or without radiotherapy is still a recommended choice.

Research progress on the bone-marrow sparing intensity-modulated radiotherapy for cervical cancer / 中华放射肿瘤学杂志

The cisplatin-based concurrent chemoradiotherapy (CCRT) has been accepted as a standard treatment for most locally advanced cervical cancer. Compared with radiation therapy alone, CCRT can increase tumor control and survival rates, whereas it also can increase the incidence of acute hematological toxicity, which results in the treatment interruption or delay, and may even affect clinical efficacy and prognosis of patients. Therefore, how to reduce the incidence and severity of acute hematological toxicity induced by CCRT is a hot spot of clinical research. Previous studies have demonstrated that the occurrence of hematological toxicity is associated with the volume and dose of irradiated pelvic bone marrow. With the development of modern radiotherapy technology, precise radiotherapy technologies, such as intensity-modulated radiotherapy (IMRT) and image-guided radiotherapy (IGRT), not only guaranteed the enough dose for tumor, but also realized the protection of normal tissues. This article will focus on the feasibility of bone marrow sparing during CCRT for cervical cancer, and summarize the research progress in recent years.

Effect of dwell time deviation constraint on the three-dimensional brachytherapy plans for cervical cancer / 中华放射肿瘤学杂志

Objective:To investigate the effect of dwell time deviation constraint of inverse optimization on the quality and position error robustness of three-dimensional (3D) brachytherapy plans for cervical cancer.Methods:A total of 20 patients with cervical cancer receiving 3D brachytherapy treatment in Xiangya Hospital Central South University from August 2020 to August 2021 were retrospectively selected. All plans were designed using the Eclipse treatment planning system, and the dwell time deviation constraint parameter smooth value in the system were set to 0.00, 0.25, 0.50, 0.75, and 1.00, respectively. An inverse dose volume optimization algorithm was used to generate plans with various smooth values, and the optimization conditions were the same as the original clinical plans. Key dosimetric metrics and total dwell time differences were comparatively analyzed. The applicators were intentionally subjected to position errors (0.2-1.0 cm) in 6 directions (left-right, anterior-posterior, head-foot), and the effect of various smooth values on plan quality and robustness was assessed. There were 133 plans per case and 2 660 plans for 20 patients. The results were statistically analyzed using the Wilcoxon signed-rank nonparametric test.Results:As the smooth value was increased, the modulation factor was gradually decreased and the D 2 cm3 of the bladder and rectum was increased. Plans with smooth values of 0.25, 0.50, 0.75, 1.00 had modulation factors of 0.72±0.09, 0.63±0.08, 0.55±0.08, 0.51±0.06, respectively, lower than 0.75±0.05 of the plan with the smooth value of 0.00, and all differences were statistically significant ( P=0.004, 0.002, 0.002, 0.002). The bladder D 2 cm3 of plans with smooth values of 0.50, 0.75, 1.00 were (475.4±41.0) cGy, (483.7±46.2) cGy, and (489.0±46.8) cGy, respectively, higher than (469.8±41.8) cGy of the plan with the smooth value of 0.00, with statistically significant differences (all P=0.002). The rectum D 2 cm3 of plans with smooth values of 0.50 and 0.75 plans were (413.2±93.3) cGy and (418.6±96.4) cGy, both higher than (410.2±91.5) cGy of the plan with the smooth value of 0.00, with statistically significant differences ( P=0.006, 0.010). When positional errors were introduced, the high risk clinical target volume (HR-CTV) D 90% was close for different smooth plans at most positional errors, and the differences were not statistically significant. The organs at risk D 2 cm3 of plans with the smooth value of 0.00 was lower than those of plans with other smooth values, and for the bladder and rectum, the differences were statistically significant at most positional errors (all P<0.01). Conclusions:The dwell time deviation constraint parameter exerts significant effect on the plan quality, and the smaller the value of the constraint parameter, the higher quality of the plan. The dwell time deviation constraint parameter has slight impact on the positional error robustness of dosimetric indices of targets and key organs at risk.

CT radiomics model for predicting progression-free survival of locally advanced cervical cancer after concurrent chemoradiotherapy / 中华放射肿瘤学杂志

Objective:To construct machine learning models based on CT imaging and clinical parameters for predicting progression-free survival (PFS) of locally advanced cervical cancer (LACC) patients after concurrent chemoradiotherapy (CCRT).Methods:Clinical data of 167 LACC patients treated with CCRT at Shandong Cancer Hospital from September 2015 to October 2021 were retrospectively analyzed. All patients were randomly divided into the training and validation cohorts according to the ratio of 7 vs. 3. Clinical features were selected by univariate and multivariate Cox proportional hazards model ( P<0.1). Radiomics models and nomograms were constructed by radiomics features which were selected by least absolute shrinkage and selection operator (LASSO) Cox regression model to predict the 1-, 3- and 5-year PFS. Combined models and nomogram models were developed by selected clinical and radiomics features. The Kaplan Meier-curve, receiver operating characteristic (ROC) curve, C-index and calibration curve were used to evaluate the model performance. Results:A total of 1 409 radiomics features were extracted based on the region of interest (ROI) in CT images. CT radiomics models showed better performance for predicting 1-, 3-and 5-year PFS than the clinical model in the training and validation cohorts. The combined model displayed the optimal performance in predicting 1-, 3-and 5-year PFS in the training cohort [area under the curve (AUC): 0.760, 0.648, 0.661, C-index: 0.740, 0.667, 0.709] and verification cohort (AUC: 0.763, 0.677, 0.648, C-index: 0.748, 0.668, 0.678).Conclusions:Combined model constructed based on CT radiomics and clinical features yield better prediction performance than that based on radiomics or clinical features alone. As an objective image analysis approach, it possesses high prediction efficiency for PFS of LACC patients after CCRT, which can provide reference for clinical decision-making.

Prognostic value of diffusion kurtosis imaging histogram based nomogram model for cervical cancer / 中华放射肿瘤学杂志

Objective:To analyze the prognostic value of nomogram model for cervical cancer based on the imaging features of diffusion kurtosis imaging (DKI) histogram.Methods:The DKI and clinical data of 272 patients with cervical cancer who were admitted to Affiliated Hospital of Guangdong Medical University from March 2015 to February 2022 were collected and retrospectively analyzed. All patients were randomly divided into the training group ( n=190) and validation group ( n=82) at a ratio of 7 vs. 3. The parameters of DKI histogram were obtained by GE AW 4.2 MRI software. The best prognostic imaging features were screened by LASSO regression. The DKI radiomics score was calculated by linear combination. The independent risk factors of prognosis were identified by univariate and multivariate regression analyses, and a nomogram model was constructed. The model discrimination was assessed by the area under the receiver operating characteristic (ROC) curve (AUC). The internal consistency of the model was evaluated by the calibration map. Results:Adenocarcinoma ( HR=2.496, 95% CI=1.312-4.749, P=0.005), DKI score ( HR=24.087, 95% CI=6.062-95.711, P<0.001), depth of invasion ≥ 1/2 muscular layer ( HR=2.277, 95% CI=1.156-4.487, P=0.017) and neutrophil to lymphocyte ratio (NLR) ( HR=1.800, 95% CI=1.313-2.468, P<0.001) were the independent risk factors for prognosis of cervical cancer. The AUC of the nomogram model in the training and validation groups were 0.860 and 0.757, respectively. The calibration curve was well fitted with the 45° diagonal. The prediction results of long-term prognosis of this model were in good agreement with the actual situation. Conclusions:Adenocarcinoma, NLR, DKI score and depth of invasion ≥ 1/2 muscular layer are the independent risk factors for the prognosis of patients with cervical cancer. The constructed nomogram model could reliably predict the 3-year survival rate of patients with cervical cancer.