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        "resumen" => "<span class="elsevierStyleSectionTitle">Objective</span><p class="elsevierStyleSimplePara elsevierViewall">TO assess the prognostic value of a series of clinicopathological variables in stage I nonsmall cell lung cancer&#44; for tumors up to 3 cm in diameter&#46;</p> <span class="elsevierStyleSectionTitle">Patients and method</span><p class="elsevierStyleSimplePara elsevierViewall">The study included 271 patients&#46; Survival was analyzed with the Kaplan-Meier method&#46; The Cox model was used for multivariate analysis&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p class="elsevierStyleSimplePara elsevierViewall">Five- and ten-year survival were 78&#46;63&#37; and 67&#46;59&#37;&#44; respectively&#46; Survival did not significantly depend on sex&#44; age&#44; extent of resection&#44; histology&#44; visceral pleural invasion&#44; level of bronchial invasion or T1 versus T2&#46; The decade in which resection was performed did affect survival &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;0037&#41;&#46; Five-year survival was 58&#37; for operations between 1970 and 1980&#44; 77&#37; for operations between 1981 and 1990&#44; and 84&#37; for operations between 1991 and 2000&#46; Tumor size also affected survival &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;0046&#41;&#44; which was 86&#37; for patients with tumors of less than or equal to 2 cm in diameter and 73&#37; for those with tumors of more than 2 cm in diameter&#46; In the multivariate analysis both variables entered into regression&#44; remaining predictive of survival&#46;</p> <span class="elsevierStyleSectionTitle">Conclusion</span><p class="elsevierStyleSimplePara elsevierViewall">We found evidence for a prognostic stage migration &#40;Will Rogers phenomenon&#41; according to the decade in which resection was performed and that tumor size affected survival in our population&#46; Finally&#44; the current system of TNM staging fails in conforming groups of patients with a homogenous prognosis&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objetivo</span><p class="elsevierStyleSimplePara elsevierViewall">Valorar el papel pron&#243;stico de una serie de variables cl&#237;nico-patol&#243;gicas en el carcinoma broncog&#233;nico no anapl&#225;sico de c&#233;lulas peque&#241;as con un tama&#241;o m&#225;ximo de 3 cm y clasificado en estadio I&#46;</p> <span class="elsevierStyleSectionTitle">Pacientes Y M&#233;todo</span><p class="elsevierStyleSimplePara elsevierViewall">Se estudi&#243; a 271 pacientes&#46; La supervivencia se analiz&#243; con el m&#233;todo de Kaplan-Meier&#46; Para el an&#225;lisis multivariante se utiliz&#243; el modelo de Cox&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p class="elsevierStyleSimplePara elsevierViewall">La supervivencia fue del 78&#44;63 y el 67&#44;59&#37; a los 5 y 10 a&#241;os&#44; respectivamente&#46; El sexo&#44; la edad&#44; la amplitud de ex&#233;resis&#44; la estirpe histol&#243;gica&#44; la invasi&#243;n de la pleura visceral&#44; el grado de invasi&#243;n bronquial y T1-T2 no influyeron significativamente en la supervivencia&#46; La d&#233;cada en que el paciente fue operado condicion&#243; la supervivencia &#40;p &#61; 0&#44;0037&#41;&#44; que a los 5 a&#241;os fue del 58&#37; para los intervenidos entre 1970 y 1980&#44; del 77&#37; para los operados entre 1981 y 1990 y del 84&#37; para los sometidos a la intervenci&#243;n entre 1991 y 2000&#46; El tama&#241;o tumoral tambi&#233;n condicion&#243; la supervivencia &#40;p &#61; 0&#44;0046&#41;&#44; que fue del 86&#37; para los pacientes con tumores con un di&#225;metro inferior o igual a 2 cm y del 73&#37; para los que ten&#237;an tumores con di&#225;metro de m&#225;s de 2 cm&#46; Ambas variables entraron en regresi&#243;n cuando se utiliz&#243; el an&#225;lisis multivariante&#46;</p> <span class="elsevierStyleSectionTitle">Conclusi&#243;n</span><p class="elsevierStyleSimplePara elsevierViewall">Hemos comprobado una migraci&#243;n pron&#243;stica &#40;fen&#243;meno de Will Rogers&#41; en relaci&#243;n con la d&#233;cada en que el paciente fue operado &#40;<span class="elsevierStyleItalic">time trend</span>&#41; y que el tama&#241;o tumoral condicion&#243; la supervivencia de nuestra serie&#46; Por &#250;ltimo&#44; el sistema vigente de estadificaci&#243;n TNM es deficiente en la configuraci&#243;n de grupos de pacientes con un pron&#243;stico homog&#233;neo&#46;</p>"
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Vol. 40. Issue 3.
Pages 110-113 (March 2004)
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Vol. 40. Issue 3.
Pages 110-113 (March 2004)
Original Articles
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Stage I Nonsmall Cell Lung Cancer up to 3 cm in Diameter: Prognostic Factors
Visits
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J. Padilla
Corresponding author
jpadilla@comv.es

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

TO assess the prognostic value of a series of clinicopathological variables in stage I nonsmall cell lung cancer, for tumors up to 3 cm in diameter.

Patients and method

The study included 271 patients. Survival was analyzed with the Kaplan-Meier method. The Cox model was used for multivariate analysis.

Results

Five- and ten-year survival were 78.63% and 67.59%, respectively. Survival did not significantly depend on sex, age, extent of resection, histology, visceral pleural invasion, level of bronchial invasion or T1 versus T2. The decade in which resection was performed did affect survival (P=.0037). Five-year survival was 58% for operations between 1970 and 1980, 77% for operations between 1981 and 1990, and 84% for operations between 1991 and 2000. Tumor size also affected survival (P=.0046), which was 86% for patients with tumors of less than or equal to 2 cm in diameter and 73% for those with tumors of more than 2 cm in diameter. In the multivariate analysis both variables entered into regression, remaining predictive of survival.

Conclusion

We found evidence for a prognostic stage migration (Will Rogers phenomenon) according to the decade in which resection was performed and that tumor size affected survival in our population. Finally, the current system of TNM staging fails in conforming groups of patients with a homogenous prognosis.

Key words:
Nonsmall cell lung cancer
Stage I
Surgery
Time trend
Tumor size
Objetivo

Valorar el papel pronóstico de una serie de variables clínico-patológicas en el carcinoma broncogénico no anaplásico de células pequeñas con un tamaño máximo de 3 cm y clasificado en estadio I.

Pacientes Y Método

Se estudió a 271 pacientes. La supervivencia se analizó con el método de Kaplan-Meier. Para el análisis multivariante se utilizó el modelo de Cox.

Resultados

La supervivencia fue del 78,63 y el 67,59% a los 5 y 10 años, respectivamente. El sexo, la edad, la amplitud de exéresis, la estirpe histológica, la invasión de la pleura visceral, el grado de invasión bronquial y T1-T2 no influyeron significativamente en la supervivencia. La década en que el paciente fue operado condicionó la supervivencia (p = 0,0037), que a los 5 años fue del 58% para los intervenidos entre 1970 y 1980, del 77% para los operados entre 1981 y 1990 y del 84% para los sometidos a la intervención entre 1991 y 2000. El tamaño tumoral también condicionó la supervivencia (p = 0,0046), que fue del 86% para los pacientes con tumores con un diámetro inferior o igual a 2 cm y del 73% para los que tenían tumores con diámetro de más de 2 cm. Ambas variables entraron en regresión cuando se utilizó el análisis multivariante.

Conclusión

Hemos comprobado una migración pronóstica (fenómeno de Will Rogers) en relación con la década en que el paciente fue operado (time trend) y que el tamaño tumoral condicionó la supervivencia de nuestra serie. Por último, el sistema vigente de estadificación TNM es deficiente en la configuración de grupos de pacientes con un pronóstico homogéneo.

Palabras clave:
Carcinoma broncogénico
Estadio I
Cirugía
Tendencia temporal
Tamaño
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Copyright © 2004. Sociedad Española de Neumología y Cirugía Torácica (SEPAR)
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