open access

Vol 89, No 1 (2021)
Research paper
Published online: 2021-02-28
Submitted: 2020-10-01
Accepted: 2020-12-28
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Miniforceps EBUS-guided lymph node biopsy: impact on diagnostic yield

Aryan Shiari, Lamia Aljundi, Peter Boshara, Rami Zein, Mohammad Zalt
DOI: 10.5603/ARM.a2021.0024
·
Pubmed: 33660247
·
Adv Respir Med 2021;89(1):37-42.

open access

Vol 89, No 1 (2021)
ORIGINAL PAPERS
Published online: 2021-02-28
Submitted: 2020-10-01
Accepted: 2020-12-28

Abstract

Introduction: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is the standard diagnostic method for sampling mediastinal and hilar lymph nodes. Non-diagnostic samples have led some pulmonologists to add a miniforceps biopsy (EBUS-TBFB) in order to increase diagnostic yield. Our study aims to analyze the impact of adding EBUS-TBFB to the EBUS-TBNA in cases where Rapid On-site Evaluation (ROSE) was negative for malignancy or was non-diagnostic.
Material and methods: This retrospective chart review included 91 patients who were aged 18–90 years old and underwent EBUS with both TBNA and TBFB between January 1, 2013 and July 1, 2018.
Results: There was no significant statistical difference in the diagnostic yield of TBNA vs TBFB with a McNemar value of 0.167, and this conclusion was the same when stratified by race, age and lymph node size. Using TBNA as a gold standard, the sensitivity and specificity of TBFB was 87% and 69%, respectively. Out of the non-diagnostic TBNA samples on ROSE and cell-block, subsequent TBFB resulted in additional pathologic diagnoses in 16% of cases, of which 67% were non-caseating granulomas. Furthermore, two additional malignant cases were identified by TBFB consisting of small cell carcinoma and non-Hodgkin’s lymphoma.
Conclusion: In conclusion, TBFB is a useful adjunctive tool in the diagnosis of non-malignant conditions (i.e. granulomatous diseases) with the potential to spare the patient from more invasive surgical biopsies. Training of future fellows in performing TBFB in addition to TBNA should be strongly encouraged.

Abstract

Introduction: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is the standard diagnostic method for sampling mediastinal and hilar lymph nodes. Non-diagnostic samples have led some pulmonologists to add a miniforceps biopsy (EBUS-TBFB) in order to increase diagnostic yield. Our study aims to analyze the impact of adding EBUS-TBFB to the EBUS-TBNA in cases where Rapid On-site Evaluation (ROSE) was negative for malignancy or was non-diagnostic.
Material and methods: This retrospective chart review included 91 patients who were aged 18–90 years old and underwent EBUS with both TBNA and TBFB between January 1, 2013 and July 1, 2018.
Results: There was no significant statistical difference in the diagnostic yield of TBNA vs TBFB with a McNemar value of 0.167, and this conclusion was the same when stratified by race, age and lymph node size. Using TBNA as a gold standard, the sensitivity and specificity of TBFB was 87% and 69%, respectively. Out of the non-diagnostic TBNA samples on ROSE and cell-block, subsequent TBFB resulted in additional pathologic diagnoses in 16% of cases, of which 67% were non-caseating granulomas. Furthermore, two additional malignant cases were identified by TBFB consisting of small cell carcinoma and non-Hodgkin’s lymphoma.
Conclusion: In conclusion, TBFB is a useful adjunctive tool in the diagnosis of non-malignant conditions (i.e. granulomatous diseases) with the potential to spare the patient from more invasive surgical biopsies. Training of future fellows in performing TBFB in addition to TBNA should be strongly encouraged.

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Keywords

EBUS-TBNA; EBUS-TBFB; sarcoidosis; Rapid On-site Evaluation; ROSE

About this article
Title

Miniforceps EBUS-guided lymph node biopsy: impact on diagnostic yield

Journal

Advances in Respiratory Medicine

Issue

Vol 89, No 1 (2021)

Article type

Research paper

Pages

37-42

Published online

2021-02-28

DOI

10.5603/ARM.a2021.0024

Pubmed

33660247

Bibliographic record

Adv Respir Med 2021;89(1):37-42.

Keywords

EBUS-TBNA
EBUS-TBFB
sarcoidosis
Rapid On-site Evaluation
ROSE

Authors

Aryan Shiari
Lamia Aljundi
Peter Boshara
Rami Zein
Mohammad Zalt

References (16)
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