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        "resumen" => "<span class="elsevierStyleSectionTitle">Objective</span><p class="elsevierStyleSimplePara elsevierViewall">TO assess the factors that may determine the effectiveness of transbronchial needle aspiration through a flexible bronchoscope in the diagnosis of diseased mediastinal lymph nodes in patients with lung or extrapulmonary tumors&#46;</p> <span class="elsevierStyleSectionTitle">Methods</span><p class="elsevierStyleSimplePara elsevierViewall">Prospective study carried out at 2 hospitals between 1998 and 2004 that included all transbronchial needle aspirations performed on patients who had diseased mediastinal lymph nodes larger than 10 mm and nonlymphoid neoplasms&#46; Univariate and multivariate analysis of the diagnostic results of transbronchial needle aspiration were performed according to the type and location of the primary neoplasm and the lymph node station biopsied&#44; the diameter of the affected node&#44; endoscopic findings&#44; and the results of other bronchoscopic techniques&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p class="elsevierStyleSimplePara elsevierViewall">The study evaluated the transbronchial needle aspiration of 230 lymph node stations in 207 patients&#46; Histologic examination revealed 151 cases &#40;72&#46;9&#37;&#41; of non-small cell lung cancer&#44; 42 cases &#40;20&#46;3&#37;&#41; of small cell lung cancer&#44; and 14 cases &#40;6&#46;8&#37;&#41; of extrapulmonary cancer&#46; The best predictors of obtaining a diagnostic sample were a diameter of the diseased node greater than 20 mm &#40;odds ratio &#91;OR&#93;&#44; 2&#46;4&#59; 95&#37; confidence interval &#91;CI&#93;&#44; 1&#46;2-4&#46;7&#59; <span class="elsevierStyleItalic">P</span> &#61; &#46;01&#41; and a histologic diagnosis of small cell lung cancer &#40;OR&#44; 2&#46;7&#59; 95&#37; CI&#44; 0&#46;9-8&#46;2&#59; <span class="elsevierStyleItalic">P</span> &#61; &#46;07&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusions</span><p class="elsevierStyleSimplePara elsevierViewall">The size of the diseased node and the tumor type are the best predictors of obtaining a diagnostic sample with transbronchial needle aspiration of diseased mediastinal lymph nodes in patients with lung or extrapulmonary tumors&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objetivo</span><p class="elsevierStyleSimplePara elsevierViewall">Analizar los factores que pueden influir en la efectividad de la punci&#243;n transtraqueal &#40;PTT&#41; a trav&#233;s del broncoscopio flexible en el diagn&#243;stico de adenopat&#237;as mediast&#237;nicas en pacientes con neoplasias pulmonares o extra-pulmonares&#46;</p> <span class="elsevierStyleSectionTitle">M&#233;todos</span><p class="elsevierStyleSimplePara elsevierViewall">Estudio prospectivo realizado entre 1998 y 2004 en el que se incluyeron todas las PTT realizadas a pacientes con adenopat&#237;as mediast&#237;nicas superiores a 10 mm y neoplasias no linfoides de 2 centros hospitalarios&#46; Se realiz&#243; un an&#225;lisis univariado y multivariado entre los resultados diagn&#243;sticos de la PTT seg&#250;n el tipo y la localizaci&#243;n de la neoplasia primaria y la estaci&#243;n ganglionar analizada&#44; el di&#225;metro de la adenopat&#237;a&#44; los hallazgos endosc&#243;picos y los resultados de otras t&#233;cnicas broncosc&#243;picas&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p class="elsevierStyleSimplePara elsevierViewall">Se incluyeron en el estudio 230 PTT de esta-ciones ganglionares distintas de 207 pacientes&#46; Las estirpes histol&#243;gicas fueron en 151 casos &#40;72&#44;9&#37;&#41; carcinomas no mi-croc&#237;ticos pulmonares&#44; en 42 &#40;20&#44;3&#37;&#41; carcinomas microc&#237;ti-cos y en 14 &#40;6&#44;8&#37;&#41; carcinomas extrapulmonares&#46; Las variables que mejor predijeron la obtenci&#243;n de muestras diagn&#243;sticas fueron el di&#225;metro de la adenopat&#237;a superior a 20 mm &#40;<span class="elsevierStyleItalic">odds ratio</span> &#91;OR&#93; &#61; 2&#44;4&#59; intervalo de confianza &#91;IC&#93; del 95&#37;&#44; 1&#44;2-4&#44;7&#59; p &#61; 0&#44;01&#41; y que el tipo de neoplasia fuera un carcinoma pulmonar microc&#237;tico &#40;OR &#61; 2&#44;7&#59; IC del 95&#37;&#44; 0&#44;9-8&#44;2&#59; p &#61; 0&#44;07&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p class="elsevierStyleSimplePara elsevierViewall">El tama&#241;o de la adenopat&#237;a y el tipo de neoplasia son los factores que mejor predicen la obtenci&#243;n de muestras adecuadas en la PTT de adenopat&#237;as mediast&#237;nicas en pacientes con neoplasias pulmonares o extrapulmonares&#46;</p>"
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Original Articles
Transbronchial Needle Aspiration of Diseased Mediastinal Lymph Nodes: Predictors of Positive Findings
A. Fernández-Villara,
Corresponding author
jfv01po@saludalia.com

Correspondence: Dr. A. Fernández-Villar. Joaquín Costa, 60, 6.° C. 36004 Pontevedra. España
, F. Iglesiasb, M. Mosteiroa, D. Corbachob, A. Gonzálezc, P. Blancoa, J. Paz-Esqueted, R. Bandrésa, L. Piñeiroa
a Servicio de Neumología, Hospital Xeral-Cíes, Complexo Hospitalario Universitario de Vigo, Vigo, Pontevedra, Spain
b Sección de Neumología, Clínica POVISA, Vigo, Pontevedra, Spain
c Servicio de Anatomía Patológica, Hospital Xeral-Cíes, Complexo Hospitalario Universitario de Vigo, Vigo, Pontevedra, Spain
d Servicio de Medicina Preventiva, Complexo Hospitalario de Pontevedra, Pontevedra, Spain
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          "clase" => "keyword"
          "titulo" => "Palabras clave"
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          "palabras" => array:3 [
            0 => "Punci&#243;n transtraqueal"
            1 => "Adenopat&#237;as mediast&#237;nicas"
            2 => "Broncoscopio flexible"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objective</span><p class="elsevierStyleSimplePara elsevierViewall">TO assess the factors that may determine the effectiveness of transbronchial needle aspiration through a flexible bronchoscope in the diagnosis of diseased mediastinal lymph nodes in patients with lung or extrapulmonary tumors&#46;</p> <span class="elsevierStyleSectionTitle">Methods</span><p class="elsevierStyleSimplePara elsevierViewall">Prospective study carried out at 2 hospitals between 1998 and 2004 that included all transbronchial needle aspirations performed on patients who had diseased mediastinal lymph nodes larger than 10 mm and nonlymphoid neoplasms&#46; Univariate and multivariate analysis of the diagnostic results of transbronchial needle aspiration were performed according to the type and location of the primary neoplasm and the lymph node station biopsied&#44; the diameter of the affected node&#44; endoscopic findings&#44; and the results of other bronchoscopic techniques&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p class="elsevierStyleSimplePara elsevierViewall">The study evaluated the transbronchial needle aspiration of 230 lymph node stations in 207 patients&#46; Histologic examination revealed 151 cases &#40;72&#46;9&#37;&#41; of non-small cell lung cancer&#44; 42 cases &#40;20&#46;3&#37;&#41; of small cell lung cancer&#44; and 14 cases &#40;6&#46;8&#37;&#41; of extrapulmonary cancer&#46; The best predictors of obtaining a diagnostic sample were a diameter of the diseased node greater than 20 mm &#40;odds ratio &#91;OR&#93;&#44; 2&#46;4&#59; 95&#37; confidence interval &#91;CI&#93;&#44; 1&#46;2-4&#46;7&#59; <span class="elsevierStyleItalic">P</span> &#61; &#46;01&#41; and a histologic diagnosis of small cell lung cancer &#40;OR&#44; 2&#46;7&#59; 95&#37; CI&#44; 0&#46;9-8&#46;2&#59; <span class="elsevierStyleItalic">P</span> &#61; &#46;07&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusions</span><p class="elsevierStyleSimplePara elsevierViewall">The size of the diseased node and the tumor type are the best predictors of obtaining a diagnostic sample with transbronchial needle aspiration of diseased mediastinal lymph nodes in patients with lung or extrapulmonary tumors&#46;</p>"
      ]
      "es" => array:1 [
        "resumen" => "<span class="elsevierStyleSectionTitle">Objetivo</span><p class="elsevierStyleSimplePara elsevierViewall">Analizar los factores que pueden influir en la efectividad de la punci&#243;n transtraqueal &#40;PTT&#41; a trav&#233;s del broncoscopio flexible en el diagn&#243;stico de adenopat&#237;as mediast&#237;nicas en pacientes con neoplasias pulmonares o extra-pulmonares&#46;</p> <span class="elsevierStyleSectionTitle">M&#233;todos</span><p class="elsevierStyleSimplePara elsevierViewall">Estudio prospectivo realizado entre 1998 y 2004 en el que se incluyeron todas las PTT realizadas a pacientes con adenopat&#237;as mediast&#237;nicas superiores a 10 mm y neoplasias no linfoides de 2 centros hospitalarios&#46; Se realiz&#243; un an&#225;lisis univariado y multivariado entre los resultados diagn&#243;sticos de la PTT seg&#250;n el tipo y la localizaci&#243;n de la neoplasia primaria y la estaci&#243;n ganglionar analizada&#44; el di&#225;metro de la adenopat&#237;a&#44; los hallazgos endosc&#243;picos y los resultados de otras t&#233;cnicas broncosc&#243;picas&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p class="elsevierStyleSimplePara elsevierViewall">Se incluyeron en el estudio 230 PTT de esta-ciones ganglionares distintas de 207 pacientes&#46; Las estirpes histol&#243;gicas fueron en 151 casos &#40;72&#44;9&#37;&#41; carcinomas no mi-croc&#237;ticos pulmonares&#44; en 42 &#40;20&#44;3&#37;&#41; carcinomas microc&#237;ti-cos y en 14 &#40;6&#44;8&#37;&#41; carcinomas extrapulmonares&#46; Las variables que mejor predijeron la obtenci&#243;n de muestras diagn&#243;sticas fueron el di&#225;metro de la adenopat&#237;a superior a 20 mm &#40;<span class="elsevierStyleItalic">odds ratio</span> &#91;OR&#93; &#61; 2&#44;4&#59; intervalo de confianza &#91;IC&#93; del 95&#37;&#44; 1&#44;2-4&#44;7&#59; p &#61; 0&#44;01&#41; y que el tipo de neoplasia fuera un carcinoma pulmonar microc&#237;tico &#40;OR &#61; 2&#44;7&#59; IC del 95&#37;&#44; 0&#44;9-8&#44;2&#59; p &#61; 0&#44;07&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p class="elsevierStyleSimplePara elsevierViewall">El tama&#241;o de la adenopat&#237;a y el tipo de neoplasia son los factores que mejor predicen la obtenci&#243;n de muestras adecuadas en la PTT de adenopat&#237;as mediast&#237;nicas en pacientes con neoplasias pulmonares o extrapulmonares&#46;</p>"
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    ]
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