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        "resumen" => "<span class="elsevierStyleSectionTitle">Objective</span><p class="elsevierStyleSimplePara elsevierViewall">TO assess agreement between planned lung resections and the type subsequently performed on a series of patients&#44; to assess whether tumor location &#40;central or peripheral&#41; affected the degree of discrepancy&#44; and&#44; in the case of unscheduled pneumonectomies&#44; to examine why the planned resection had to be extended&#46;</p> <span class="elsevierStyleSectionTitle">Method</span><p class="elsevierStyleSimplePara elsevierViewall">Prospective&#44; observational clinical study of 199 patients scheduled for lung cancer surgery&#46; Tumors were preoperatively classified as central or peripheral&#44; and the type of operation planned&#8212;lobectomy &#40;or bilobectomy&#41; or pneumonectomy&#8212;was compared with the operation finally performed&#46; Rates of agreement and Wilks&#39; lambda statistic were calculated&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p class="elsevierStyleSimplePara elsevierViewall">Twenty unscheduled pneumonectomies were performed&#46; Agreement between planned and performed operations was found in 86&#46;9&#37; of cases &#40;76&#46;9&#37; in central tumors and 95&#46;4&#37; in peripheral tumors&#41;&#46; Wilks&#39; lambda statistic was 0&#46;38 &#40;0&#46;42 for central tumors and 0&#46;17 for peripheral tumors&#41;&#46; Seven unscheduled pneumonectomies were performed due to hilar node involvement&#46;</p> <span class="elsevierStyleSectionTitle">Conclusions</span><p class="elsevierStyleSimplePara elsevierViewall">The resections performed differed from the resections initially planned in 13&#37; of the bronchial carcinoma operations&#44; in most cases because the planned lobectomy had to be converted to pneumonectomy&#44; a situation which occurred more often with central tumors and was more often due to direct invasion of anatomic structures rather than hilar spread&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objetivo</span><p class="elsevierStyleSimplePara elsevierViewall">Cuantificar la concordancia entre la cirug&#237;a de resecci&#243;n planeada y la efectuada en una serie de pacientes&#44; evaluar si la localizaci&#243;n del tumor &#40;central o perif&#233;rico&#41; in-fluye en el grado de discrepancia encontrado y valorar&#44; en los casos de neumonectom&#237;as no programadas&#44; la causa que oblig&#243; a ampliar la resecci&#243;n prevista&#46;</p> <span class="elsevierStyleSectionTitle">M&#233;todos</span><p class="elsevierStyleSimplePara elsevierViewall">Estudio cl&#237;nico prospectivo observacional en 199 pacientes programados para intervenci&#243;n quir&#250;rgica por c&#225;ncer de pulm&#243;n&#46; Se clasificaron los tumores preopera-toriamente como centrales o perif&#233;ricos&#44; y el tipo de intervenci&#243;n programada -lobectom&#237;a &#40;o bilobectom&#237;a&#41; o neumo-nectom&#237;a- se compar&#243; con la efectuada&#46; Se han calculado las tasas de concordancia y el estad&#237;stico lambda&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p class="elsevierStyleSimplePara elsevierViewall">Se practicaron 20 neumonectom&#237;as no programadas&#46; Se encontr&#243; concordancia entre lo programado y lo efectuado en el 86&#44;9&#37; de los casos &#40;un 76&#44;9&#37; en tumores centrales y un 95&#44;4&#37; en perif&#233;ricos&#41;&#46; El valor del estad&#237;stico lambda es de 0&#44;38 &#40;0&#44;42 en tumores centrales y 0&#44;17 en perif&#233;ricos&#41;&#46; En 7 ocasiones la neumonectom&#237;a no programada se debi&#243; a afectaci&#243;n ganglionar hiliar&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p class="elsevierStyleSimplePara elsevierViewall">En el 13&#37; de los pacientes sometidos a cirug&#237;a por carcinoma bronquial&#44; la resecci&#243;n efectuada no coincide con la que se hab&#237;a programado inicialmente&#44; la mayor parte de las veces debido a la necesidad de efectuar una neumonectom&#237;a cuando se hab&#237;a previsto una lobectom&#237;a&#46; Este hecho es m&#225;s frecuente en los tumores centrales y es debido con m&#225;s frecuencia a invasi&#243;n directa de las es-tructuras ana t&#243; micas que a extensi&#243;n ganglionar hiliar&#46;</p>"
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Vol. 41. Issue 2.
Pages 84-87 (February 2005)
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Vol. 41. Issue 2.
Pages 84-87 (February 2005)
Original Article
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Agreement Between Type of Lung Resection Planned and Resection Subsequently Performed on Lung Cancer Patients
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3815
G. Varela
Corresponding author
gvs@usal.es

Correspondence: Dr. G. Varela. Sección de Cirugía Torácica. Hospital Universitario. P.° San Vicente, 58. 37007 Salamanca. España
, M.F. Jiménez, N. Novoa, J.L. Aranda
Sección de Cirugía Torácica, Hospital Universitario de Salamanca, Salamanca, Spain
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Objective

TO assess agreement between planned lung resections and the type subsequently performed on a series of patients, to assess whether tumor location (central or peripheral) affected the degree of discrepancy, and, in the case of unscheduled pneumonectomies, to examine why the planned resection had to be extended.

Method

Prospective, observational clinical study of 199 patients scheduled for lung cancer surgery. Tumors were preoperatively classified as central or peripheral, and the type of operation planned—lobectomy (or bilobectomy) or pneumonectomy—was compared with the operation finally performed. Rates of agreement and Wilks' lambda statistic were calculated.

Results

Twenty unscheduled pneumonectomies were performed. Agreement between planned and performed operations was found in 86.9% of cases (76.9% in central tumors and 95.4% in peripheral tumors). Wilks' lambda statistic was 0.38 (0.42 for central tumors and 0.17 for peripheral tumors). Seven unscheduled pneumonectomies were performed due to hilar node involvement.

Conclusions

The resections performed differed from the resections initially planned in 13% of the bronchial carcinoma operations, in most cases because the planned lobectomy had to be converted to pneumonectomy, a situation which occurred more often with central tumors and was more often due to direct invasion of anatomic structures rather than hilar spread.

Key Words:
Non-small cell lung cancer
Lung resection
Risk prediction
Objetivo

Cuantificar la concordancia entre la cirugía de resección planeada y la efectuada en una serie de pacientes, evaluar si la localización del tumor (central o periférico) in-fluye en el grado de discrepancia encontrado y valorar, en los casos de neumonectomías no programadas, la causa que obligó a ampliar la resección prevista.

Métodos

Estudio clínico prospectivo observacional en 199 pacientes programados para intervención quirúrgica por cáncer de pulmón. Se clasificaron los tumores preopera-toriamente como centrales o periféricos, y el tipo de intervención programada -lobectomía (o bilobectomía) o neumo-nectomía- se comparó con la efectuada. Se han calculado las tasas de concordancia y el estadístico lambda.

Resultados

Se practicaron 20 neumonectomías no programadas. Se encontró concordancia entre lo programado y lo efectuado en el 86,9% de los casos (un 76,9% en tumores centrales y un 95,4% en periféricos). El valor del estadístico lambda es de 0,38 (0,42 en tumores centrales y 0,17 en periféricos). En 7 ocasiones la neumonectomía no programada se debió a afectación ganglionar hiliar.

Conclusiones

En el 13% de los pacientes sometidos a cirugía por carcinoma bronquial, la resección efectuada no coincide con la que se había programado inicialmente, la mayor parte de las veces debido a la necesidad de efectuar una neumonectomía cuando se había previsto una lobectomía. Este hecho es más frecuente en los tumores centrales y es debido con más frecuencia a invasión directa de las es-tructuras ana tó micas que a extensión ganglionar hiliar.

Palabras clave:
Carcinoma bronquial no microcítico
Resección pulmonar
Predicción del riesgo quirúrgico
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REFERENCES
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Interactive Cardiovasc Thorac Surg., 2 (2003), pp. 12-15
[2]
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HF Lausberg, TP Graeter, O Wendler, S Demertzis, D Ukena, HJ Schäfers.
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Ann Thorac Surg., 70 (2000), pp. 367-371
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F Tronc, J Grégoire, J Rouleau, J Deslauriers.
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Eur J Cardiothorac Surg., 17 (2000), pp. 550-556
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PA Fuentes.
Pneumonectomy: historical perspective and prospective insight.
Eur J Cardiothorac Surg., 23 (2003), pp. 439-445
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MK Ferguson, T Karrison.
Does pneumonectomy for lung cancer adversely influence long-term survival?.
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[15]
G Varela, MF Jiménez, M Novoa, P Macrí.
Discordance between predicted postoperative forced expiratory volumes in one second (ppoFEV1) calculated before and after resection of bronchogenic carcinoma.
Interactive Cardiovasc Thorac Surg., 2 (2003), pp. 138-142
Copyright © 2005. Sociedad Española de Neumología y Cirugía Torácica (SEPAR)
Archivos de Bronconeumología
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