FDG Uptake and the Diagnostic Yield of Transbronchial Needle Aspiration.

OBJECTIVE: The objective of our study was to investigate whether fluorodeoxyglucose (FDG) positron emission tomography scanning uptake impacts the yield of transbronchial needle aspiration (TBNA). METHODS: We carried out a retrospective analysis of data from 140 consecutive patients (178 lymph nodes) undergoing positron emission tomography-computed tomography scanning and subsequent TBNA with rapid onsite cytologic evaluation of the specimen. Patient and lymph node characteristics, including nodal station, size, FDG uptake, number of passes with the needle, sample adequacy, and the final diagnosis were recorded. RESULTS: The diagnostic yield of TBNA was 75%. Themean short axis lymph node diameter was 18.7±9 mm and mean maximum standardized uptake value (SUVmax) was 7.7±4. The diagnostic yield depended on the lymph node size [odds ratio (OR)=1.07 (1.00-1.14); P=0.04], clinical suspicion of malignancy [OR=5.13 (1.95-13.52); P=0.001], malignant diagnosis [OR=4.91 (1.71-14.09); P=0.003], and FDG uptake [for SUVmax cutoff of 3.0: OR=33.8 (9.2-124); P<0.001]. Only clinical suspicion of cancer [OR=6.2 (2.2-17.2); P=0.001] and FDG uptake [for SUVmax cutoff of 3.0: OR=33.8 (9.2-123.8); P<0.001] remained significant on multivariate analysis. Receiver operating characteristic curves combining 3 key variables (lymph node size, clinical suspicion of malignancy, and SUVmax) showed an area of 0.83 under the curve for a 2.5 SUVmax cutoff and 0.84 for a 3.0 cutoff. CONCLUSIONS: FDG uptake is the single most important variable impacting the TBNA yield. TBNA of lymph nodes with an SUVmax less than 3.0 is rarely diagnostic.

Uso del drenaje pleural permanente en el manejo ambulatorio del derrame pleural maligno recidivante / Use of Indwelling Pleural Catheter in the Outpatient Management of Recurrent Malignant Pleural Effusion

IntroducciónEl objetivo del estudio ha sido analizar la eficacia y seguridad del catéter de drenaje pleural permanente en el manejo de pacientes con diagnóstico de derrame pleural maligno.Pacientes y métodosSe ha realizado un estudio prospectivo y multicéntrico de 63 pacientes consecutivos de 4 hospitales españoles. Se incluyó a 43 varones y 20 mujeres, con una mediana de edad de 67 años, diagnosticados de derrame pleural maligno sintomático. En 7 casos el tratamiento se indicó tras fracaso de pleurodesis, en 5 por encontrarse el pulmón atrapado, en otros 5 tras toracocentesis repetidas y en el resto como indicación preferente a la pleurodesis. A todos los pacientes se les insertó de forma ambulatoria un catéter tunelizado permanente (PleurX®, Denver Biomedical).ResultadosLa mayoría de los pacientes (95,4%) refirió mejoría parcial o completa de los síntomas respiratorios (tos y disnea) y de su capacidad funcional. La mediana de duración de uso del catéter fue de 45 días (rango: 6–222). La mediana diaria de líquido pleural drenado fue de 75ml. En 22 casos (34,9%) se produjo una pleurodesis espontánea. No se registraron complicaciones durante la inserción del catéter. Las complicaciones durante el seguimiento fueron las siguientes: empiema (3 casos), dolor torácico (2 casos) y diseminaciones del tumor por el lugar de inserción del tubo (3 casos).ConclusionesEl catéter de drenaje pleural permanente es eficaz en el manejo ambulatorio del paciente con derrame pleural maligno sintomático. Es un procedimiento sencillo que no precisa ingreso hospitalario, de fácil manejo para el paciente en su domicilio y con escasas complicaciones(AU)

Background and objectiveTo analyse the effectiveness and safety of the indwelling pleural catheter in the management of recurrent malignant pleural effusion.Patients and methodsA prospective multicentre study was performed in 63 consecutive outpatients from four Spanish hospitals. A total of 43 men and 20 women were included, with a median age of 67 years. In seven of the cases treatment with pleurodesis had failed; in five other cases their lung was trapped; in another five cases after repeat therapeutic thoracocentesis, and the rest of them as a preference choice to pleurodesis. All patients had an indwelling pleural catheter inserted (PleurX®, Denver Biomedical).ResultsMost of patients (94.5%) reported an improvement in their respiratory symptoms (cough and dyspnoea) and their ability to function independently. Average length of the catheterisation was 45 days (6–222). Average amount of drained pleural effusion was 75ml, with a frequency of drainage of between 3 and 4 times per week and once fortnightly. Spontaneous pleurodesis was achieved following 34.9% of procedures. No complications occurred during the insertion of the catheter. The post-catheterisation complications were empyema (3 cases), chest pain (2 cases), and tumour metastasis (3 cases).ConclusionsThe use of an indwelling pleural catheter is an effective palliative treatment in the outpatient management for patients suffering malignant pleural effusion. It is also a simple treatment that can be easily applied, does not require hospitalisation and can be easily managed by the patient at home, with a low rate of complications(AU)

[Use of indwelling pleural catheter in the outpatient management of recurrent malignant pleural effusion]. / Uso del drenaje pleural permanente en el manejo ambulatorio del derrame pleural maligno recidivante.

BACKGROUND AND OBJECTIVE: To analyse the effectiveness and safety of the indwelling pleural catheter in the management of recurrent malignant pleural effusion. PATIENTS AND METHODS: A prospective multicentre study was performed in 63 consecutive outpatients from four Spanish hospitals. A total of 43 men and 20 women were included, with a median age of 67 years. In seven of the cases treatment with pleurodesis had failed; in five other cases their lung was trapped; in another five cases after repeat therapeutic thoracocentesis, and the rest of them as a preference choice to pleurodesis. All patients had an indwelling pleural catheter inserted (PleurX), Denver Biomedical). RESULTS: Most of patients (94.5%) reported an improvement in their respiratory symptoms (cough and dyspnoea) and their ability to function independently. Average length of the catheterisation was 45 days (6-222). Average amount of drained pleural effusion was 75ml, with a frequency of drainage of between 3 and 4 times per week and once fortnightly. Spontaneous pleurodesis was achieved following 34.9% of procedures. No complications occurred during the insertion of the catheter. The post-catheterisation complications were empyema (3 cases), chest pain (2 cases), and tumour metastasis (3 cases). CONCLUSIONS: The use of an indwelling pleural catheter is an effective palliative treatment in the outpatient management for patients suffering malignant pleural effusion. It is also a simple treatment that can be easily applied, does not require hospitalisation and can be easily managed by the patient at home, with a low rate of complications.