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        "resumen" => "<span class="elsevierStyleSectionTitle">OBJECTIVE</span><p class="elsevierStyleSimplePara elsevierViewall">To analyze prognostic factors associated with survival in a group of patients who underwent resection of pulmonary metastases from colorectal cancer&#46;</p> <span class="elsevierStyleSectionTitle">PATIENTS AND METHODS</span><p class="elsevierStyleSimplePara elsevierViewall">A retrospective review was performed for 55 consecutive patients who had undergone resection of pulmonary metastases from colorectal adenocarcinoma between January 1993 and June 2004&#46; Univariate and multivariate analyses were performed to assess the effect of the recorded variables on overall survival&#46;</p> <span class="elsevierStyleSectionTitle">RESULTS</span><p class="elsevierStyleSimplePara elsevierViewall">Median overall survival was 32&#46;9 months and the probability of survival at 1&#44; 3&#44; and 5 years was 79&#37;&#44; 44&#37;&#44; and 22&#37;&#44; respectively&#46; Survival was lower in patients in whom the largest metastasis was at least 4 cm &#40;8&#46;6 vs 34&#46;5 months&#44; <span class="elsevierStyleItalic">P</span> &#61;&#46;0085&#41; and in patients with elevated levels of carcinoembryonic antigen &#40;24&#46;5 vs 41&#46;4 months&#44; <span class="elsevierStyleItalic">P</span> &#61;&#46;05&#41;&#46; Significantly longer survival was observed in patients who received adjuvant chemotherapy after surgery &#40;49&#46;8 vs 30&#46;9 months&#44; <span class="elsevierStyleItalic">P</span> &#61;&#46;0058&#41;&#46; Preoperative positron emission tomography &#40;PET&#41; and the absence of previous or synchronous liver metastases were associated with a nonsignificant trend toward increased survival&#46; In the multivariate analysis&#44; only size of the largest pulmonary metastasis influenced overall survival &#40;<span class="elsevierStyleItalic">P</span> &#61;&#46;036&#41;&#46;</p> <span class="elsevierStyleSectionTitle">CONCLUSIONS</span><p class="elsevierStyleSimplePara elsevierViewall">The preoperative variables that best predicted survival in our patients were size of the largest pulmonary metastasis and the level of carcinoembryonic antigen&#46; Prospective studies are needed to determine the usefulness of PET for tumor staging prior to resection of pulmonary metastases&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">OBJETIVO</span><p class="elsevierStyleSimplePara elsevierViewall">Estudiar los factores pron&#243;sticos de supervivencia en una serie de pacientes con met&#225;stasis pulmonares resecadas de c&#225;ncer colorrectal&#46;</p> <span class="elsevierStyleSectionTitle">PACIENTES Y M&#201;TODOS</span><p class="elsevierStyleSimplePara elsevierViewall">Se revisaron retrospectivamente los casos de 55 pacientes consecutivos a quienes entre enero de 1993 y junio de 2004 se hab&#237;a practicado una metastasectom&#237;a pulmonar de adenocarcinoma colorrectal&#46; Se realiz&#243; un an&#225;lisis univariante y multivariante para la supervivencia global con las variables recogidas&#46;</p> <span class="elsevierStyleSectionTitle">RESULTADOS</span><p class="elsevierStyleSimplePara elsevierViewall">La mediana de la supervivencia global fue de 32&#44;9 meses&#44; con una probabilidad de supervivencia a 1&#44; 3 y 5 a&#241;os del 79&#44; el 44 y el 22&#37;&#44; respectivamente&#46; La supervivencia fue inferior &#40;p &#61; 0&#44;0085&#41; en los pacientes en que la met&#225;stasis mayor era de 4 cm o m&#225;s respecto a aquellos en que era menor de 4 cm &#40;8&#44;6 frente a 34&#44;5 meses&#41;&#44; y en los pacientes con t&#237;tulos elevados de ant&#237;geno carcinoembrionario frente a aqu&#233;llos con valores normales &#40;24&#44;5 frente a 41&#44;4 meses&#59; p &#61; 0&#44;05&#41;&#46; Quienes recibieron quimioterapia adyuvante tras la cirug&#237;a vivieron significativamente m&#225;s &#40;49&#44;8 frente a 30&#44;9 meses&#59; p &#61; 0&#44;0058&#41;&#46; La realizaci&#243;n de una tomograf&#237;a por emisi&#243;n de positrones preoperatoria y la ausencia de met&#225;stasis hep&#225;ticas previas o sincr&#243;nicas se asociaron a una tendencia no significativa hacia una mejor supervivencia&#46; En el an&#225;lisis multivariante s&#243;lo el tama&#241;o de la met&#225;stasis pulmonar mayor influy&#243; en la supervivencia global &#40;p &#61; 0&#44;036&#41;&#46;</p> <span class="elsevierStyleSectionTitle">CONCLUSIONES</span><p class="elsevierStyleSimplePara elsevierViewall">El tama&#241;o de la met&#225;stasis mayor y el valor del ant&#237;geno carcinoembrionario fueron las variables preoperatorias que mejor predijeron la supervivencia de nuestros pacientes&#46; Se necesitan estudios prospectivos que valoren el papel de la tomograf&#237;a por emisi&#243;n de positrones como estudio de extensi&#243;n previo a metastasectom&#237;as pulmonares&#46;</p>"
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Vol. 43. Issue 6.
Pages 309-316 (January 2007)
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Vol. 43. Issue 6.
Pages 309-316 (January 2007)
Original Articles
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Prognostic Factors Associated With Resectable Pulmonary Metastases From Colorectal Cancer
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Alberto Muñoz Llarenaa,
Corresponding author
amunoz@hcru.osakidetza.net

Correspondence: Dr. A. Muñoz Llarena. Servicio de Oncología Médica. Hospital de Cruces. Pza. de Cruces, s/n. 48903 Barakaldo. Bizkaia. España
, Sergio Carrera Revillaa, Aitziber Gil-Negrete Labordaa, Joaquín Pac Ferrerb, Ramón Barceló Galíndeza, Guillermo López Vivancoa
a Servicio de Oncología Médica, Hospital de Cruces, Osakidetza-Servicio Vasco de Salud, Barakaldo, Bizkaia, Spain
b Servicio de Cirugía Torácica, Hospital de Cruces, Osakidetza-Servicio Vasco de Salud, Barakaldo, Bizkaia, Spain
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OBJECTIVE

To analyze prognostic factors associated with survival in a group of patients who underwent resection of pulmonary metastases from colorectal cancer.

PATIENTS AND METHODS

A retrospective review was performed for 55 consecutive patients who had undergone resection of pulmonary metastases from colorectal adenocarcinoma between January 1993 and June 2004. Univariate and multivariate analyses were performed to assess the effect of the recorded variables on overall survival.

RESULTS

Median overall survival was 32.9 months and the probability of survival at 1, 3, and 5 years was 79%, 44%, and 22%, respectively. Survival was lower in patients in whom the largest metastasis was at least 4 cm (8.6 vs 34.5 months, P =.0085) and in patients with elevated levels of carcinoembryonic antigen (24.5 vs 41.4 months, P =.05). Significantly longer survival was observed in patients who received adjuvant chemotherapy after surgery (49.8 vs 30.9 months, P =.0058). Preoperative positron emission tomography (PET) and the absence of previous or synchronous liver metastases were associated with a nonsignificant trend toward increased survival. In the multivariate analysis, only size of the largest pulmonary metastasis influenced overall survival (P =.036).

CONCLUSIONS

The preoperative variables that best predicted survival in our patients were size of the largest pulmonary metastasis and the level of carcinoembryonic antigen. Prospective studies are needed to determine the usefulness of PET for tumor staging prior to resection of pulmonary metastases.

Key words:
Colorectal cancer
Pulmonary metastases
Surgical resection
Adjuvant chemotherapy
OBJETIVO

Estudiar los factores pronósticos de supervivencia en una serie de pacientes con metástasis pulmonares resecadas de cáncer colorrectal.

PACIENTES Y MÉTODOS

Se revisaron retrospectivamente los casos de 55 pacientes consecutivos a quienes entre enero de 1993 y junio de 2004 se había practicado una metastasectomía pulmonar de adenocarcinoma colorrectal. Se realizó un análisis univariante y multivariante para la supervivencia global con las variables recogidas.

RESULTADOS

La mediana de la supervivencia global fue de 32,9 meses, con una probabilidad de supervivencia a 1, 3 y 5 años del 79, el 44 y el 22%, respectivamente. La supervivencia fue inferior (p = 0,0085) en los pacientes en que la metástasis mayor era de 4 cm o más respecto a aquellos en que era menor de 4 cm (8,6 frente a 34,5 meses), y en los pacientes con títulos elevados de antígeno carcinoembrionario frente a aquéllos con valores normales (24,5 frente a 41,4 meses; p = 0,05). Quienes recibieron quimioterapia adyuvante tras la cirugía vivieron significativamente más (49,8 frente a 30,9 meses; p = 0,0058). La realización de una tomografía por emisión de positrones preoperatoria y la ausencia de metástasis hepáticas previas o sincrónicas se asociaron a una tendencia no significativa hacia una mejor supervivencia. En el análisis multivariante sólo el tamaño de la metástasis pulmonar mayor influyó en la supervivencia global (p = 0,036).

CONCLUSIONES

El tamaño de la metástasis mayor y el valor del antígeno carcinoembrionario fueron las variables preoperatorias que mejor predijeron la supervivencia de nuestros pacientes. Se necesitan estudios prospectivos que valoren el papel de la tomografía por emisión de positrones como estudio de extensión previo a metastasectomías pulmonares.

Palabras clave:
Cáncer colorrectal
Metástasis pulmonares
Resección quirúrgica
Quimioterapia adyuvante
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Copyright © 2007. Sociedad Española de Neumología y Cirugía Torácica (SEPAR)
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