open access

Vol 85, No 2 (2017)
ORIGINAL PAPERS
Published online: 2017-03-12
Submitted: 2016-10-26
Accepted: 2017-02-12
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Initial Polish experience of Flexible 19 gauge Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration

Maciej Gnass, Joanna Sola, Anna Filarecka, Stanisław Orzechowski, Piotr Kocoń, Monika Pasieka-Lis, Juliusz Pankowski, Lucyna Rudnicka, Jerzy Soja, Artur Szlubowski
DOI: 10.5603/ARM.2017.0012
·
Adv Respir Med 2017;85(2):64-68.

open access

Vol 85, No 2 (2017)
ORIGINAL PAPERS
Published online: 2017-03-12
Submitted: 2016-10-26
Accepted: 2017-02-12

Abstract

INTRODUCTION: EBUS is a well established minimally invasive diagnostic tool for mediastinal and hilar lymphadenopathy. The novel ViziShot Flex 19G needle (Olympus Respiratory America, Redmond, WA, USA) was introduced in 2015 in order to improve loaded scope flexion and to obtain larger tissue samples for analysis. The aims of this study were to assess diagnostic yield of Flex 19G needles and to present endoscopist’s feedback about the endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA).

MATERIAL AND METHODS: The Flex 19G needles were used in patients with hilar and/or mediastinal adenopathy in two Polish pulmonology centers. Cytology smears and cell blocks (CB) were prepared. The prospective analysis was performed due to collected data.

RESULTS: Twenty two selected patients with confirmed adenopathy on chest-CT (mean age 58 ± 12) underwent EBUS-TBNA with use of Flex 19G needles. All procedures occurred to be diagnostic for smears (yield 100%). The malignancy was found in 15 cases (68.2%), and benign adenopathy in 7 (31.8%). In 12 of 14 cases of lung cancer (yield 85.7%) CB were diagnostic for immunohistochemical and molecular staining. After puncturing nodes, especially in hilar position not extensive bleeding was observed. Comparing to standard 21/22G EBUS-TBNA endoscopists underlined better flexion of loaded scope and sample adequacy and found non-significant differences in another biopsy details.

CONCLUSIONS: The first Polish experience with use of Flex 19G EBUS-TBNA needle occurs to be similar in performance with standard technique with use of 22/21G needles and presents high diagnostic yield for lung cancer diagnostics, especially when preparing CB. A safety profile of the biopsy is acceptable.

Abstract

INTRODUCTION: EBUS is a well established minimally invasive diagnostic tool for mediastinal and hilar lymphadenopathy. The novel ViziShot Flex 19G needle (Olympus Respiratory America, Redmond, WA, USA) was introduced in 2015 in order to improve loaded scope flexion and to obtain larger tissue samples for analysis. The aims of this study were to assess diagnostic yield of Flex 19G needles and to present endoscopist’s feedback about the endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA).

MATERIAL AND METHODS: The Flex 19G needles were used in patients with hilar and/or mediastinal adenopathy in two Polish pulmonology centers. Cytology smears and cell blocks (CB) were prepared. The prospective analysis was performed due to collected data.

RESULTS: Twenty two selected patients with confirmed adenopathy on chest-CT (mean age 58 ± 12) underwent EBUS-TBNA with use of Flex 19G needles. All procedures occurred to be diagnostic for smears (yield 100%). The malignancy was found in 15 cases (68.2%), and benign adenopathy in 7 (31.8%). In 12 of 14 cases of lung cancer (yield 85.7%) CB were diagnostic for immunohistochemical and molecular staining. After puncturing nodes, especially in hilar position not extensive bleeding was observed. Comparing to standard 21/22G EBUS-TBNA endoscopists underlined better flexion of loaded scope and sample adequacy and found non-significant differences in another biopsy details.

CONCLUSIONS: The first Polish experience with use of Flex 19G EBUS-TBNA needle occurs to be similar in performance with standard technique with use of 22/21G needles and presents high diagnostic yield for lung cancer diagnostics, especially when preparing CB. A safety profile of the biopsy is acceptable.

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Keywords

EBUS-TBNA, flex 19G needle, lung cancer, sarcoidosis, lymphadenopathy

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About this article
Title

Initial Polish experience of Flexible 19 gauge Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration

Journal

Advances in Respiratory Medicine

Issue

Vol 85, No 2 (2017)

Pages

64-68

Published online

2017-03-12

DOI

10.5603/ARM.2017.0012

Bibliographic record

Adv Respir Med 2017;85(2):64-68.

Keywords

EBUS-TBNA
flex 19G needle
lung cancer
sarcoidosis
lymphadenopathy

Authors

Maciej Gnass
Joanna Sola
Anna Filarecka
Stanisław Orzechowski
Piotr Kocoń
Monika Pasieka-Lis
Juliusz Pankowski
Lucyna Rudnicka
Jerzy Soja
Artur Szlubowski

References (12)
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