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Vol. 29. Issue 1.
Pages 22-26 (January - February 1993)
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Vol. 29. Issue 1.
Pages 22-26 (January - February 1993)
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Determinación de marcadores tumorales séricos (CEA, SCC y CA 125) en pacientes con cáncer de pulmón. I. Análisis pretratamiento
Determination of serum tumoral markers (CEA, SCC and CA 125) in patients with lung cancer. I. Pre-treatment analysis
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M. Díez*, A. Torres+, M.D. Ortega++, M.L. Maestro**, A. Gómez+, A. Cidoncha++, F. Hernando+, J. Granell*, J.L. Balibrea+
* Servicio de Cirugía General. Hospital Universitario Príncipe de Asturias. Alcalá de Henares
+ Servicio de Cirugía General. Hospital Universitario San Carlos. Madrid
++ Laboratorio de Análisis Clínicos. Hospital Universitario San Carlos. Madrid
** Servicio de Medicina Nuclear. Hospital Universitario San Carlos. Madrid
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Se analiza la información aportada por la batería de marcadores tumorales séricos formada por CEA, SCC y CA 125 en 76 pacientes quirúrgicos con cáncer de pulmón no-células pequeñas. Se incluyen como poblaciones control 139 sujetos sanos y 55 pacientes con procesos pulmonares benignos. Se han empleado los siguientes valores cut-off: CEA-5ng/ml, SCC-1.5 U/ml y CA 125-15 U/ml.

Las concentraciones de los tres marcadores fueron superiores, significativamente, en la población con cáncer de pulmón frente a los dos grupos control. La sensibilidad del CEA fue 39%, con una especificidad de 98% frente a controles sanos y 83% con patología benigna; para SCC estas mismas fueron: 51%, 100% y 93%; para CA 125 fueron: 31%, 100% y 94% respectivamente. La asociación de los tres marcadores permitió elevar la sensibilidad a 85%, con una especificidad de 98% frente a controles sanos y 76% con patología benigna. Existió relación entre concentración de CEA, CA 125 y estadio TNM; de forma que, cuanto más avanzada se halló la enfermedad, mayor fue la concentración del marcador y la sensibilidad. Asimismo, se encontró relación entre marcador y tipo histológico tumoral: el CEA presentó concentración media y sensibilidad significativamente más elevadas en adeno-carcinomas y carcinomas de células grandes; igual ocurrió con SCC en carcinomas epidermoides y con CA 125 en carcinomas de células grandes.

Los resultados obtenidos indican que CEA, SCC y CA 125 aportan una información complementaria en el inicio del tratamiento de pacientes con cáncer de pulmón.

The information contributed by a battery of serum tumoral markers formed by CEA, SCC and CA 125 in 76 surgical patients with non small cell lung cancer was analyzed. One hundred thirty-nine healthy subjects and 55 patients with benign pulmonary processes were included as control populations. The following cut-off values were used: CEA-5ng/ml, SCC-1.5 U/ml, and CA 125-15 U/ml.

The concentration of the three markers were signicantly higher in the population with lung cancer versus the two control groups. The sensitivity of CEA was 39% with a specificity of 98% versus the healthy controls and 83% with benign pathology; for SCC the same were 51%, 100% and 93%; for CA 125: 31%, 100% and 94%, respectively. The association of the three markers permitted sensitivity of be raised to 85% with specificity of 98% versus healthy controls and 76% with bening pathology. There was a relation between the concentration of CEA, CA 125 and TNM stage, in that the more advanced the disease was the greater the concentration of the marker and sensitivity. Likewise, a relation between marker and the type of tumoral histology was found: CEA presented a medium concentration and significantly higher sensitivity in adenocarcinomas and large cell carcinomas; with the same occurring with SCC in epidermoid carcinoma and CA 125 in large cell carcinomas.

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Copyright © 1993. Sociedad Española de Neumología y Cirugía Torácica
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