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Vol. 35. Issue 10.
Pages 483-487 (November 1999)
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Vol. 35. Issue 10.
Pages 483-487 (November 1999)
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Pronóstico tras resección quirúrgica del carcinoma broncogénico no anaplásico de células pequeñas según la nueva normativa de estadificación: análisis de 1.433 pacientes
Prognosis after surgical resection of non-small cell anaplastic bronchogenic lung carcinoma arising in the bronchi using new staging guidelines: anaysis of 1,433 patients
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J. Padilla
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jpadilla@comv.es

Correspondencia: Servicio de Cirugía Torácica. Hospital Universitario La Fe. Avda. Campanar, 21. 46009 Valencia.
, V. Calvo, A. García Zarza, J. Pastor, E. Blasco, F. París
Servicio de Cirugía Torácica. Hospital Universitario La Fe. Valencia
Related content
Arch Bronconeumol. 2000;36:23210.1016/S0300-2896(15)30192-7
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Objetivo

Validar la normativa actualizada sobre estadificación del carcinoma broncogénico.

Pacientes y método

Un total de 1.433 pacientes afectados de carcinoma broncogénico no anaplásico de células pequeñas (CB-NACP) fueron resecados en nuestro hospital entre 1969 y 1996 y clasificados según el TNM patológico propuesto recientemente por la SEPAR. La supervivencia fue calculada con el método de Kaplan-Meier y las curvas fueron comparadas mediante el long-rank test.

Resultados

Ciento cuarenta y dos pacientes se clasificaron en el estadio IA y 575 en el IB. En el estadio IIA se incluyeron 37 enfermos y 336 en el IIB, 177 como T2N1M0 y 159 como T3N0M0. El estadio IIIA lo conformaron 248 pacientes, 54 T3N1M0, 23 T1N2M0, 120 T2N2M0, 51 T3N2-M0; 95 pacientes conformaron el estadio IIIB, 37 T4N0M0, 35 T4N1M0,23T4N2M0.

La supervivencia a los 5 años para el estadio IA fue del 75%, significativamente mejor que para el IB, 60% (p=0,0021). Igualmente, el pronóstico fue mejor para el estadio HA, 57%, que para el IIB- 39% (p=0,0434). Los pacientes clasificados como T1N1M0 tuvieron mejor pronóstico que los T2N1M0, que fue del 38% (p=0,0320). Los clasificados como T3N0M0 presentaron una supervivencia del 42%, no significativamente distinta de los T1N1M0 (p=0,1754) y los T2N1M0 (p=0,5360). No encontramos diferencia entre los T1N1M0 y el estadio IB (p=0,3847). En el estadio III no objetivamos diferente supervivencia entre el estadio IIIA y IIIB (p=0,1914). En el estadio IIIA, los pacientes clasificados como T3N2M0 tuvieron una supervivencia significativamente peor (p=0,0399). En el estadio IIIB, la presencia de ganglios mediastínicos afectados determinó una peor supervivencia (p=0,0328).

Conclusión

La nueva normativa propuesta para la estadificación del CB-NACP no consigue conformar, al menos en determinadas categorías, grupos homogéneos de pacientes en lo que al pronóstico se refiere.

Palabras clave:
Cáncer de pulmón
Cirugía
Estadifícación
Objective

To validate current guidelines for staging bronchogenic lung carcinoma.

Methods

Between 1969 and 1996, small-cell non-anaplastic tumors of bronchogenic carcinoma classified by the recently proposed TNM guidelines of the Spanish Society of Pneumology and Chest Surgery (SEPAR) were resected from 1,433 patients. We used the Kaplan-Meier method to calculate survival and compared the curves using a log-rank test.

Results

A stage IA classification was given to 142 patients and IB to 575. Thirty-seven cases were classified HA and 336 were IIB. Of the latter, 177 were T2N1M0 and 159 were T3N0M0. Two hundred forty-eight patients were in stage IIIA, 54 T3N1M0, 23 T1N2M0, 120 T2N2M0 and 51 T3N2M0. Ninety-five stage IIIB patients were classified as fo- IIows: 37 T4N0M0, 35 T4N1M0, and 23 T4N2M0. Five-year survival for IA patients, at 75%, was signifícantly better than the 60% rate for IB patients (p=0.0021). Likewise, the prognosis for stage HA, where five-year survival was 57%, was signifícantly better than for IIB at 39% (p=0.0434). The prognosis for patients classified as T1NM0 was better than for those classified as T2N1M0, which was 38% (p=0.0320). The survival of those classified as T3N0M0 (42%) was not significantly different from that of T1N1M0 (p=0.1754) or T2N1M0 (p=0.5360) patients. We found no significant difference between T1N1M0 and stage IB (p=0.3847) patients. Among stage III patients, we observed no difference in survival between stage IIIA and IIIB (p=0.1914). In stage IIIA, patients classified as T3N2M0 had a signifícantly lower rate of survival (p=0.0399). The presence of mediastinal ganglia in stage IIIB was associated with a lower survival rate (p=0.0328).

Conclusion

The new guidelines for staging non-small cell anaplastic lung carcinoma do not provide consistent prognoses for homogeneous groups of patients, at least not in certain categories.

Key words:
Lung cancer
Surgery
Staging
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Copyright © 1999. Sociedad Española de Neumología y Cirugía Torácica
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