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Vol. 66. Issue S1.
Suplement “"Advances in Thoracic Radiology”
Pages S24-S31 (April 2024)
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Vol. 66. Issue S1.
Suplement “"Advances in Thoracic Radiology”
Pages S24-S31 (April 2024)
Original articles
Usefulness of thoracic ultrasound in the assessment of removal of indwelling pleural catheter in patients with malignant pleural effusion
Validación de la ecografía torácica en la valoración de la retirada del catéter pleural tunelizado ambulatorio en pacientes con un derrame pleural maligno
M. Iglesias Herasa,
Corresponding author
, E. Juárez Morenob, J. Ortiz de Saracho Bobob, J. Cascón Hernándezc, J.M. Fernández García-Hierrod, E. Yagüe Zapateroe, R. Cordovilla Péreza
a Servicio de Neumología, Hospital Universitario de Salamanca, Salamanca. Spain
b Servicio de Neumología, Hospital El Bierzo, Ponferrada, León, Spain
c Servicio de Neumología, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
d Servicio de Radiodiagnóstico, Hospital Universitario de Salamanca, Salamanca, Spain
e Servicio de Radiodiagnóstico, Hospital El Bierzo, Ponferrada, León, Spain
Article information
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Tables (3)
Table 1. Demographic characteristics of the study population (n = 18).
Table 2. Chest ultrasound vs CT.
Table 3. Chest ultrasound by pulmonologist vs. radiologist.
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Special issue
This article is part of special issue:
Vol. 66. Issue S1

Suplement “"Advances in Thoracic Radiology”

More info
Abstract
Introduction

There are no defined criteria for deciding to remove a non-functioning indwelling pleural catheter (IPC) when lung re-expansion on chest X-ray is incomplete. Chest computed tomography (chest CT) is usually used. The objective of this work is to validate the usefulness of chest ultrasound performed by a pulmonologist and by a radiologist compared to chest CT.

Patients and methods

Prospective, descriptive, multidisciplinary and multicenter study including patients with malignant pleural effusion and non-functioning IPC without lung reexpansion. Decisions made on the basis of chest ultrasound performed by a pulmonologist, and performed by a radiologist, were compared with chest CT as the gold standard.

Results

18 patients were analyzed, all of them underwent ultrasound by a pulmonologist and chest CT and in 11 of them also ultrasound by a radiologist. The ultrasound performed by the pulmonologist presents a sensitivity of 60%, specificity of 100%, PPV 100% and NPV 66% in the decision of the correct removal of the IPC. The concordance of both ultrasounds (pulmonologist and radiologist) was 100%, with a kappa index of 1. The 4 discordant cases were those in which the IPC was not located on the ultrasound.

Conclusions

Thoracic ultrasound performed by an expert pulmonologist is a valid and simple tool to determine spontaneous pleurodesis and remove a non-functioning IPC, which would make it possible to avoid chest CT in those cases in which lung reexpansion is observed with ultrasonography.

Keywords:
Malignant pleural effusion
Ultrasonography
Indwelling pleural catheter
Removal
Pleurodesis
Resumen
Introducción

No existen criterios definidos para decidir la retirada de un CPT no funcionante cuando la reexpansión pulmonar en la radiografía de tórax es incompleta. En muchas ocasiones se utiliza la tomografía computarizada de tórax (TC de tórax). El objetivo de este trabajo es validar la utilidad de la ecografía torácica realizada por un neumólogo y por un radiólogo en relación con la TC de tórax.

Pacientes y métodos

Estudio prospectivo, descriptivo, multidisciplinar y multicéntrico de pacientes con derrame pleural maligno y CPT no funcionante sin reexpansión pulmonar. Se compararon las decisiones tomadas en base a la ecografía torácica realizada por un neumólogo, realizada por un radiólogo con la TC de tórax como técnica de referencia.

Resultados

Se analizan 18 pacientes, a todos ellos se realiza ecografía por neumólogo y TC de tórax y en 11 de ellos también ecografía por radiólogo. La ecografía realizada por el neumólogo presenta una sensibilidad del 60%, especificidad del 100%, VPP 100% y VPN 66% en la decisión de la retirada correcta del CPT. La concordancia de ambas ecografías (neumólogo y radiólogo) fue del 100%, con un índice kappa de 1. Los 4 casos discordantes fueron aquellos en los que no se localizó el CPT en la ecografía.

Conclusiones

La ecografía torácica realizada por un neumólogo experto es una herramienta válida y sencilla para determinar pleurodesis espontánea y retirar un CPT no funcionante, lo que permitiría evitar una TC de tórax en aquellos casos en los que se objetive reexpansión pulmonar con la ultrasonografía.

Palabras clave:
Derrame pleural maligno
Ecografía
Catéter pleural tunelizado
Retirada
Pleurodesis

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