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Vol. 29. Issue 7.
Pages 320-323 (October 1993)
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Vol. 29. Issue 7.
Pages 320-323 (October 1993)
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Valor de los datos clínicos en la predicción de metástasis óseas estudiadas por rastreo óseo isotópico en el carcinoma broncogénico
The value of clinical data in the prediction of bone metastasis studied by isotopic bone sweeping in broncogenic carcinoma
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F.L. Márquez Pérez1, R. Martínez Cruz, A. López Encuentra
Servicio de Neumología. Hospital 12 de Octubre. Universidad Complutense. Madrid
A. Gómez Embuena*
* Servicio de Medicina Nuclear. Hospital 12 de Octubre. Universidad Complutense. Madrid
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El objetivo del estudio ha sido conocer el valor predictivo de la ausencia de determinados datos clínicos como indicadores de la inexistencia de metástasis óseas (MOS) en la estadificación clínica preoperatoria del carcinoma broncogénico (CB).

Se realizó un estudio prospectivo en el hospital universitario de cuidados terciarios. Test en prueba: valorización de presencia/ausencia de datos clínicos sugerentes de MOS. En relación al “gold standard”, consideramos MOS presentes cuando con un rastreo óseo isotópico (ROI) patológico se demostraba una causa metastásica del mismo por radiología o citohistología, y MOS ausentes cuando no existían las circunstancias anteriores, o por evolución clínica.

Se estudiaron 73 enfermos consecutivos con CB, operables y resecables por historia clínica, exploración física, radiografía de tórax, broncofibroscopia, estudio cardiorrespiratorio y bioquímica sérica.

Las medidas y resultados fueron los siguientes: con una prevalencia del 4% la sensibilidad fue del 100%, la especificidad del 36%, el valor predictivo positivo del 6% y el valor predictivo negativo del 100%.

Las conclusiones de trabajo son que no está indicado realizar de forma indiscriminada ROI en el estudio preoperatorio del CB, en ausencia de datos clínicos que sugieran MOS.

The aim of the study was to know the predictive value of the absence of determined clinical data as indicators of the inexistence of bone metastasis (MOS) in preoperative clinical staging of bronchogenic carcinoma (BC).

A prospective study was performed in a University Hospital of terciary care in 73 consecutive patients with BC who were operable and resectable by clinical history, physical examination, thoracic radiography, bronchofibroscopy, cardiorespiratory study and serum biochemistry analysis. Evaluation of the presence/absence of clinical data suggestive of MOS being carried out. MOS was considered present in relation to the “gold standard” when a metastatic cause demonstrated with pathologic isotopic bone sweeping (IBS) was confirmed by radiology or cytohistology and MOS was absent when the anterior circumstances did not exist or by clinical evolution.

Sensitivity was found to be 100% with a prevalence of 4%, specificity was 36%, positive predictive value 6% and the negative predictive value 100%.

Isotopic bone sweeping is not indiscriminately indicated in the preoperative study of bronchogenic carcinoma in the basence of clinical data suggesting bone metastasis.

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Copyright © 1993. Sociedad Española de Neumología y Cirugía Torácica
Archivos de Bronconeumología
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