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1.
Med Clin (Barc) ; 125(4): 127-31, 2005 Jun 25.
Artigo em Espanhol | MEDLINE | ID: mdl-15989852

RESUMO

BACKGROUND AND OBJECTIVE: The causal relationship between human papillomavirus (HPV) and cervical cancer is well established. The initial diagnosis of HPV-related cervical infection is currently performed by HPV-associated changes in cervical cytology. We aimed to study the accuracy and concordance between HPV ADN detection by second-generation hybrid capture (HC-2) and cervical cytological changes for the diagnosis of HPV cervical infection in human immunodeficiency virus (HIV+) outpatients. PATIENTS AND METHOD: From March 1999 to August 2002, 139 HIV+ patients were included. HPV infection was determined by cytology and HC-2. The accuracy and level of concordance between both techniques was analyzed. RESULTS: The applicability of the HC-2 test was 96%. Sixty-eight (49%) patients were diagnosed with HPV infection by HC-2. High-oncogenetic-risk HPV genotypes were detected in 64 (46%) patients. The sensitivity, specificity and positive and negative predictive values of HC-2 in HPV detection were 78%, 69%, 61% and 83%, respectively. The concordance was K = 0.44 (95% confidence interval, 0.29-0.60); p < 0.001. CONCLUSIONS: The HC-2 diagnostic technique for HPV-related cervical infection in HIV+ patients is a sensitive and specific test. The combined use of both tests might increase the diagnostic efficacy, and hence have positive repercussions on cervical pathology screening on an outpatient basis.


Assuntos
Infecções por HIV/epidemiologia , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/diagnóstico , Displasia do Colo do Útero/epidemiologia , Displasia do Colo do Útero/virologia , Esfregaço Vaginal , Adulto , Antígenos CD4/sangue , Colposcopia , DNA Viral/isolamento & purificação , Feminino , Humanos , Programas de Rastreamento/métodos , Pessoa de Meia-Idade , Hibridização de Ácido Nucleico/métodos , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/virologia , Reação em Cadeia da Polimerase/métodos , Lesões Pré-Cancerosas/epidemiologia , Lesões Pré-Cancerosas/patologia , Lesões Pré-Cancerosas/virologia , Valor Preditivo dos Testes , Sensibilidade e Especificidade , Displasia do Colo do Útero/patologia
2.
Med. clín (Ed. impr.) ; 125(4): 127-131, jun. 2005. tab
Artigo em Es | IBECS | ID: ibc-036683

RESUMO

Fundamento y objetivo: El papel etiológico del virus del papiloma humano (VPH) en las neoplasias invasivas de cérvix uterino está demostrado. Aunque primero se produce la infección por el VPH y después los cambios histopatológicos consecuencia de la infección, en la práctica clínica el cribado de la enfermedad neoplásica cervical se basa inicialmente en los cambios citopatológicos. El objetivo de este estudio ha sido estudiar la precisión de la técnica de detección del ADN del VPH por captura de híbridos de segunda generación (CH-2) respecto a la citología cervical y la concordancia entre ambas técnicas en el cribado de la infección por el VPH en mujeres infectadas por el virus de la inmunodeficiencia humana (VIH) controladas ambulatoriamente. Pacientes y método: Durante el período comprendido entre marzo de 1999 y agosto de 2002 se incluyó de forma prospectiva a 139 pacientes infectadas por el VIH que acudieron a la visita ambulatoria. El cribado de la infección por el VPH se exploró mediante citología cervical y CH-2. Se estudió la precisión de la CH-2 respecto a la citología cervical y el grado de concordancia entre ambas técnicas. Resultados: Se aplicó la CH-2 en 135 pacientes (96%), de las cuales 68 (49%) tuvieron un resultado positivo para el VPH. Se detectó infección por genotipos de alto riesgo oncogénico en 64 pacientes (46%). La sensibilidad, especificidad, el valor predictivo positivo y negativo de la CH-2 en la detección del VPH fueron del 78, el 69, el 61 y el 83%, respectivamente. Ambas técnicas presentaron una concordancia de kappa de 0,44 (intervalo de confianza del 95%: 0,29-0,60; p < 0,001). Conclusiones: La CH-2 es un método sensible y específico en el cribado de la infección por el VPH en pacientes infectadas por el VIH. La combinación de citología cervical y captura de híbridos en el cribado de la neoplasia cervical puede ayudar a reducir la incidencia de cáncer de cuello uterino en las pacientes con infección por el VIH


Background and objective: The causal relationship between human papillomavirus (HPV) and cervical cancer is well established. The initial diagnosis of HPV-related cervical infection is currently performed by HPV-associated changes in cervical cytology. We aimed to study the accuracy and concordance between HPV ADN detection by second-generation hybrid capture (HC-2) and cervical cytological changes for the diagnosis of HPV cervical infection in human immunodeficiency virus (HIV+) outpatients. Patients and method: From March 1999 to August 2002, 139 HIV+ patients were included. HPV infection was determined by cytology and HC-2. The accuracy and level of concordance between both techniques was analyzed. Results: The applicability of the HC-2 test was 96%. Sixty-eight (49%) patients were diagnosed with HPV infection by HC-2. High-oncogenetic- risk HPV genotypes were detected in 64 (46%) patients. The sensitivity, specificity and positive and negative predictive values of HC-2 in HPV detection were 78%, 69%, 61% and 83%, respectively. The concordance was K = 0.44 (95% confidence interval, 0.29-0.60); p < 0.001. Conclusions: The HC-2 diagnostic technique for HPV-related cervical infection in HIV+ patients is a sensitive and specific test. The combined use of both tests might increase the diagnostic efficacy, and hence have positive repercussions on cervical pathology screening on an outpatient basis


Assuntos
Feminino , Humanos , Infecções por HIV/complicações , Papillomaviridae/isolamento & purificação , Programas de Rastreamento , Hibridização Genética , Papillomaviridae/genética , Neoplasias do Colo do Útero/etiologia
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