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Vol. 41. Issue 4.
Pages 180-184 (April 2005)
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Vol. 41. Issue 4.
Pages 180-184 (April 2005)
Original Articles
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Non-small Cell Lung Cancer in Stage IA: Mortality Patterns After Surgery
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J. Padilla
Corresponding author
jpadilla@comv.es

Correspondence: Dr. J. Padilla. Servicio de Cirugía Torácica. Hospital Universitario La Fe. Avda. de Campanar, 21. 46009 Valencia. España
, J.C. Peñalver, C. Jordá, V. Calvo, J. Escrivá, J. Cerón, A. García Zarza, J. Pastor, E. Blasco
Servicio de Cirugía Torácica, Hospital Universitario La Fe, Valencia, Spain
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Objective

TO determine the causes of death in patients treated surgically for nonsmall cell lung cancer (NSCLC) in stage IA and to evaluate the impact on survival of not performing systematic lymph node dissection and of the number of nodes resected.

Patients and methods

The study sample consisted of 156 patients operated on for NSCLC and classified in stage IA according to TNM staging. Only palpable or visible lymph nodes were dissected. Kaplan-Meier survival curves were compared using a log-rank test.

Results

At the end of the study, 85 (54.5%) patients had died, 67 (42.9%) were alive, and 4 (2.5%) were lost to follow up. Twenty-three (14.7%) died from a recurrence of NSCLC: 2 with local tumors (1.2%), 2 with mediastinal node involvement (1.2%), and 19 (12.1%) with distant metastasis. The cause of death was unrelated to NSCLC in 62 (39.7%) cases: 33 (21.1%) had a new tumor, 18 of which were bronchogenic, and 29 (18.5%) had nonmalignant disease. The 5-year survival rate was 81.4%. The rate was 88.9% among patients from whom no lymph nodes were excised and 79.9 % among those with node excision, although the difference was not statistically significant (P = .4073).

Conclusions

Our experience suggests that neither the fact of not performing systematic lymph node dissection nor the number of nodes resected has an impact on survival. A substantial number of patients died of causes unrelated to the NSCLC for which they had been treated.

Key Words:
Bronchogenic carcinoma
Stage IA
Surgery
Lymph node excision
Mortality
Objetivo

Determinar las causas de mortalidad en los pacientes operados de un carcinoma broncogénico no anaplásico de células pequeñas (CBNACP) en estadio IA y el im-pacto que tiene en la supervivencia el hecho de no realizar una disección ganglionar sistemática, así como el número de ganglios resecados.

Pacientes Y Métodos

Se estudió a 156 pacientes operados de un CBNACP y clasificados en el estadio IA de acuer-do con el sistema tumor, nódulo, metástasis patológico. Sólo se extirparon los ganglios palpables o visibles. La supervivencia se analizó con el método de Kaplan-Meier y las cur-vas se compararon mediante el test de rangos logarítmicos.

Resultados

Al finalizar el estudio, 85 (54,5%) pacientes habían fallecido, 67 (42,9%) estaban vivos y 4 (2,5%) se ha-bían perdido en el seguimiento. Veintitrés (14,7%) pacientes fallecieron por recidiva del CBNACP: 2 por recidiva local (1,2%), otros 2 en el ganglio mediastínico (1,2%) y 19 (12,1%) por metástasis a distancia. En 62 (39,7%) de los casos la causa de la muerte no estuvo relacionada con el CBNACP: 33 (21,1%) fallecieron por aparición de un nuevo cáncer, 18 de los cuales fueron broncogénicos, y 29 (18,5%) por enfermeda-des no tumorales. La supervivencia a los 5 años fue del 81,4%. Cuando no se extirpó ningún ganglio, la supervivencia fue del 88,9%, mientras que cuando se extirparon fue del 79,9%, aunque la diferencia no fue significativa (p = 0,4073).

Conclusiones

En nuestra experiencia, ni el hecho de no realizar disección ganglionar sistemática ni el número de ganglios extirpados han tenido una influencia en la supervivencia a los 5 años. Un número considerable de pacientes fa-lleció de una causa distinta del CBNACP del que se les había operado.

Palabras clave:
Carcinoma broncogénico
Estadio IA
Cirugía
Disección ganglionar
Patrón de mortalidad
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