RESUMEN
BACKGROUND: Screening of anal cancer is rarely available or performed in Brazil. This study analyzes the diagnostic performance of conventional cytology (CC) in the prevention of anal cancer in a coloproctology and gynecology outpatient clinics in a public hospital in Rio de Janeiro, Brazil. METHODS: From 2005 to 2017, 1066 conventional cytological samples were collected. We analyze the causes of unsatisfactory samples (11.3%) and compare the cytological diagnoses of 83 samples from persons living with HIV and persons not living with HIV and in specific situations, using as the gold standard high-resolution anoscopy or histopathology in cases biopsied within 6 months after cytology. RESULTS: The sensitivity of cytology with diagnosis of ASC-US for detection of anal intraepithelial neoplasia of any grade was 85%, specificity was 41%, positive and negative predictive values were 64% and 75%, respectively, and positive and negative likelihood ratios were 1.46 and 0.35, respectively. CONCLUSION: Conventional cytology available in resource-limited settings is a simple, noninvasive, low-cost method that proved feasible for outpatient screening of precursor lesions of the anal canal.
Asunto(s)
Neoplasias del Ano , Carcinoma in Situ , Infecciones por VIH , Infecciones por Papillomavirus , Humanos , Virus del Papiloma Humano , Brasil/epidemiología , Infecciones por Papillomavirus/diagnóstico , Infecciones por Papillomavirus/patología , Neoplasias del Ano/diagnóstico , Neoplasias del Ano/patología , Carcinoma in Situ/diagnóstico , Carcinoma in Situ/epidemiología , Carcinoma in Situ/patología , Canal Anal/patología , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Infecciones por VIH/patología , PapillomaviridaeRESUMEN
OBJECTIVE: To compare the effectiveness of first-line combination antiretroviral therapy (cART) between premenopausal and postmenopausal women. METHODS: ART-naïve women initiating cART between January 2000/June 2010 at the Instituto de Pesquisa Clínica Evandro Chagas Cohort were studied. Women were defined as postmenopausal after 12 consecutive months of amenorrhea. CD4 cell counts and HIV-1 RNA viral load (VL) measurements were compared between pre- and postmenopausal at 6, 12 and 24 months after cART initiation. Women who modified/discontinued a drug class or died due to an AIDS defining illness were classified as ART-failures. Variables were compared using Wilcoxon test, χ2 or Fisher's exact test. The odds of cART effectiveness (VL<400 copies/mL and/or no need to change cART) were compared using logistic regression. Linear model was used to access relationship between CD4 change and menopause. RESULTS: Among 383 women, 328 (85%) were premenopausal and 55 (15%) postmenopausal. Median pre cART CD4 counts were 231 and 208 cells/mm(3) (p = 0.14) in pre- and postmenopausal women, respectively. No difference in the median pre cART VL was found (both 4.8 copies/mL). Median CD4 changes were similar at 6 and 12 months. At 24 months after cART initiation, CD4 changes among postmenopausal women were significantly lower among premenopausal women (p = 0.01). When the analysis was restricted to women with VL<400 copies/mL, no statistical difference was observed. Overall, 63.7% achieved cART effectiveness at 24 months without differences between groups at 6, 12 and 24 months. CONCLUSION: Menopause status at the time of first-line cART initiation does not impact CD4 cell changes at 24 months among women with a virologic response. No relationship between menopause status and virologic response was observed.
Asunto(s)
Terapia Antirretroviral Altamente Activa , Recuento de Linfocito CD4/tendencias , Linfocitos T CD4-Positivos/inmunología , Linfocitos T CD4-Positivos/virología , Infecciones por VIH/inmunología , Infecciones por VIH/virología , Menopausia , Adulto , Brasil , Linfocitos T CD4-Positivos/efectos de los fármacos , Femenino , Estudios de Seguimiento , Infecciones por VIH/tratamiento farmacológico , VIH-1/efectos de los fármacos , VIH-1/genética , Humanos , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , ARN Viral/sangre , ARN Viral/genética , Carga ViralRESUMEN
HIV-infected women are at increased risk of developing high-grade squamous intraepithelial lesions (HSIL), the precursor lesions for cervical cancer. This study estimated and compared the performance of cytology and hybrid capture II in screening for precursor lesions of cervical cancer among HIV-infected women. The study population consisted of women from the open prospective cohort at the Evandro Chagas Clinical Research Institute, Oswaldo Cruz Foundation (IPEC/Fiocruz). Colposcopy and histology were considered jointly in defining the gold standard. Cytology showed 31.8% sensitivity and 95.5% specificity, while hybrid capture II showed higher sensitivity (100%) and lower specificity (52%). The positive likelihood ratio was 7.1 for cytology and 2.1 for hybrid capture II, while the negative likelihood ratio was 0.7 for cytology and 0.0 for hybrid capture II.
Asunto(s)
Infecciones por VIH/complicaciones , Infecciones por Papillomavirus/complicaciones , Displasia del Cuello del Útero/patología , Neoplasias del Cuello Uterino/patología , Adolescente , Adulto , Estudios de Cohortes , Colposcopía , Citodiagnóstico , Femenino , Humanos , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Sensibilidad y Especificidad , Neoplasias del Cuello Uterino/virología , Frotis Vaginal/métodos , Displasia del Cuello del Útero/virologíaRESUMEN
As lesões intraepiteliais escamosas de alto grau (HSIL) são precursoras do câncer do colo do útero, com maior risco de ocorrência e desenvolvimento em mulheres HIV+. Neste trabalho, estimamos e comparamos o desempenho do exame citológico e da captura híbrida II no rastreamento das lesões precursoras em mulheres HIV+. A população de estudo compreendeu mulheres acompanhadas na coorte prospectiva aberta do Instituto de Pesquisa Clínica Evandro Chagas da Fundação Oswaldo Cruz (IPEC/Fiocruz). A colposcopia e histologia foram consideradas conjuntamente na definição do teste de referência. O exame citológico apresentou sensibilidade de 31,8 por cento e especificidade de 95,5 por cento, enquanto a captura híbrida II apresentou maior sensibilidade (100 por cento) e menor especificidade (52 por cento). As razões de verossimilhança para o teste positivo e negativo foram estimadas em 7,1 e 0,7 para o exame citológico e em 2,1 e 0,0 para a captura híbrida II, respectivamente.
HIV-infected women are at increased risk of developing high-grade squamous intraepithelial lesions (HSIL), the precursor lesions for cervical cancer. This study estimated and compared the performance of cytology and hybrid capture II in screening for precursor lesions of cervical cancer among HIV-infected women. The study population consisted of women from the open prospective cohort at the Evandro Chagas Clinical Research Institute, Oswaldo Cruz Foundation (IPEC/Fiocruz). Colposcopy and histology were considered jointly in defining the gold standard. Cytology showed 31.8 percent sensitivity and 95.5 percent specificity, while hybrid capture II showed higher sensitivity (100 percent) and lower specificity (52 percent). The positive likelihood ratio was 7.1 for cytology and 2.1 for hybrid capture II, while the negative likelihood ratio was 0.7 for cytology and 0.0 for hybrid capture II.
Asunto(s)
Adolescente , Adulto , Femenino , Humanos , Persona de Mediana Edad , Displasia del Cuello del Útero/patología , Infecciones por VIH , Infecciones por Papillomavirus , Neoplasias del Cuello Uterino/patología , Estudios de Cohortes , Colposcopía , Citodiagnóstico , Displasia del Cuello del Útero , Valor Predictivo de las Pruebas , Sensibilidad y Especificidad , Neoplasias del Cuello Uterino , Frotis Vaginal/métodosRESUMEN
Context and objective: The latest update of the Bethesda System divided the category of atypical squamous cells of undetermined significance (ASCUS) into ASC-US (undetermined significance) and ASC-H (high-grade intraepithelial lesion cannot be ruled out). The aims here were to measure the prevalence of pre-invasive lesions (cervical intraepithelial neoplasia, CIN II/III) and cervical cancer among patients referred to Instituto Fernandes Figueira (IFF) with ASC-H cytology, and compare them with ASC-US cases. Design and setting: Cross-sectional study with retrospective data collection, at the IFF Cervical Pathology outpatient clinic. Methods: ASCUS cases referred to IFF from November 1997 to September 2007 were reviewed according to the 2001 Bethesda System to reach cytological consensus. The resulting ASC-H and ASC-US cases, along with new cases, were analyzed relative to the outcome of interest...
Contexto e objetivo: A última atualização do Sistema Bethesda dividiu a categoria de células escamosas atípicas de significado indeterminado (ASCUS) em ASC-US (de significado indeterminado) e ASC-H (quando não se pode excluir lesão intra-epitelial de alto grau). Os objetivos deste estudo foram medir a prevalência da lesão pré-invasiva (Neoplasia Intra-epitelial Cervical, NIC II/III) e câncer cervical, de pacientes que foram encaminhadas ao Instituto Fernandes Figueira (IFF), com citologia ASC-H e compará-la com os casos ASC-US. Tipo de estudo e local: Estudo transversal com coleta de dados retrospectiva, que ocorreu no ambulatório de Patologia Cervical do IFF. Métodos: Casos com diagnóstico de ASCUS recebidos no IFF entre novembro de 1997 a setembro de 2007, foram revisados de acordo com o Sistema Bethesda 2001 até um diagnóstico de consenso. Os casos ASC-H e ASC-US resultantes desta revisão, e os casos novos, foram analisados em relação ao desfecho de interesse...
Asunto(s)
Adolescente , Adulto , Anciano , Femenino , Humanos , Persona de Mediana Edad , Adulto Joven , Displasia del Cuello del Útero/epidemiología , Neoplasias de Células Escamosas/epidemiología , Neoplasias del Cuello Uterino/epidemiología , Brasil/epidemiología , Displasia del Cuello del Útero/patología , Estudios Transversales , Estadificación de Neoplasias , Neoplasias de Células Escamosas/patología , Prevalencia , Estudios Retrospectivos , Neoplasias del Cuello Uterino/patología , Adulto JovenRESUMEN
CONTEXT AND OBJECTIVE: The latest update of the Bethesda System divided the category of atypical squamous cells of undetermined significance (ASCUS) into ASC-US (undetermined significance) and ASC-H (high-grade intraepithelial lesion cannot be ruled out). The aims here were to measure the prevalence of pre-invasive lesions (cervical intraepithelial neoplasia, CIN II/III) and cervical cancer among patients referred to Instituto Fernandes Figueira (IFF) with ASC-H cytology, and compare them with ASC-US cases. DESIGN AND SETTING: Cross-sectional study with retrospective data collection, at the IFF Cervical Pathology outpatient clinic. METHODS: ASCUS cases referred to IFF from November 1997 to September 2007 were reviewed according to the 2001 Bethesda System to reach cytological consensus. The resulting ASC-H and ASC-US cases, along with new cases, were analyzed relative to the outcome of interest. The histological diagnosis (or cytocolposcopic follow-up in cases without such diagnosis) was taken as the gold standard. RESULTS: The prevalence of CIN II/III in cases with ASC-H cytology was 19.29% (95% confidence interval, CI, 9.05-29.55%) and the risk of these lesions was greater among patients with ASC-H than with ASC-US cytology (prevalence ratio, PR, 10.42; 95% CI, 2.39-45.47; P = 0.0000764). Pre-invasive lesions were more frequently found in patients under 50 years of age with ASC-H cytology (PR, 2.67; 95% CI, 0.38-18.83); P = 0.2786998). There were no uterine cervical cancer cases. CONCLUSION: The prevalence of CIN II/III in patients with ASC-H cytology was significantly higher than with ASC-US, and division into ASC diagnostic subcategories had good capacity for discriminating the presence of pre-invasive lesions.