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Inicio Cirugía Española (English Edition) Review and update of the prognostic factors in lung metastasis surgery
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Vol. 89. Issue 4.
Pages 243-248 (April 2011)
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Vol. 89. Issue 4.
Pages 243-248 (April 2011)
Original article
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Review and update of the prognostic factors in lung metastasis surgery
Revisión y actualización de los factores pronósticos en la cirugía de las metástasis pulmonares
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Jon Zabaletaa,
Corresponding author
, Borja Aguinagaldea, Marta G. Fuentesa, José M. Izquierdoa, Carlos J. Hernándeza, Jose I. Emparanzab
a Servicio de Cirugía Torácica, Hospital Donostia, San Sebastián, Guipúzcoa, Spain
b Unidad de Epidemiología Clínica, CASPe, CIBER-ESP, Hospital Donostia, San Sebastián, Guipúzcoa, Spain
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Abstract
Introduction

Since the International Registry of Lung Metastases established the factors that determine survival after performing lung metastasectomy in 1997, numerous studies have attempted to determine these prognostic factors of survival. Our objective has been to analyse the mortality, survival and disease-free survival lung metastasis surgery by studying the different variables that determine them.

Patients and method

All patients subjected to surgery for lung metastasectomy between 1998 and 2008 were included in this study. The Kaplan-Meier and log-rank tests were performed, as well as a Cox regression using multivariate analysis.

Results

A total of 178 lung metastases were removed in 146 patients during this period. The mean age was 62.22 years (median 63 years) and 64.6% were males. There were 2 cases (1.1%) of mortality and the incidence of complications was 5.02% (9 cases). The overall survival was 67.75 months with a 3 and 5 year survival of 67.4% and 52.4%, respectively. The variables that showed statistical significance in the multivariate analysis were: age disease free interval, number of nodules and size of nodules. The “state of the margins” variable was almost significant (P=.054).

Discussion

To have only one metastasis and it is less than 1cm, a long disease free interval, and a resection with free margins, are the most favourable prognostic factors after resection of lung metastasis.

Keywords:
Metastasis
Lung
Metastasectomy
Thoracic surgery
Survival
Resumen
Introducción

Desde que en 1997 el Registro Internacional de Metástasis Pulmonares estableció los factores que condicionan la supervivencia tras realizar metastasectomía pulmonar, numerosos trabajos han tratado de determinar las variables que condicionan dicha supervivencia. Nuestro objetivo principal es analizar la mortalidad, la supervivencia y la supervivencia libre de enfermedad de la cirugía de las metástasis pulmonares, estudiando las diferentes variables que puedan condicionarlas.

Pacientes y método

Se ha incluido en este estudio a todos los pacientes intervenidos de metastasectomía pulmonar entre 1998 y 2008. Se ha realizado análisis de supervivencia de Kaplan-Meier y log-rank test y análisis multivariable mediante regresión de Cox.

Resultados

En este periodo se han realizado 178 metastasectomías a 146 pacientes. La edad media era 62,22 (mediana, 63) años y el 64,6% eran varones. La mortalidad ha sido del 1,1% (2 casos) y la incidencia de complicaciones, del 5,02% (9 casos). La supervivencia total media ha sido de 67,75 meses y la supervivencia a los 3 y 5 años, del 67,4 y el 52,4% respectivamente. Las variables que han mostrado significación estadística en el análisis univariable son edad, intervalo libre de enfermedad, número de nódulos y tamaño de nódulos. La variable estado de los bordes está próxima a la significación (p=0,054).

Conclusiones

Presentar sólo una metástasis y que sea < 1cm, un intervalo libre de enfermedad largo y resección con bordes libres son los factores pronósticos más favorables tras una resección de metástasis pulmonar.

Palabras clave:
Metástasis
Pulmón
Metastasectomía
Cirugía torácica
Supervivencia
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Copyright © 2011. Asociación Española de Cirujanos
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