Conventional transbronchial needle aspiration: From acquisition to precision

INTRODUCTION: Conventional transbronchial needle aspiration (C-TBNA) is a minimally invasive, safe, and cost-effective technique in evaluating mediastinal lymphadenopathy. Previously we reported that the skills for C-TBNA can be acquired from the books. We studied the learning curve for C-TBNA for a...

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Autores principales: Küpeli, Elif, Seyfettin, Pınar, Tepeoğlu, Merih Demirel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4286846/
https://www.ncbi.nlm.nih.gov/pubmed/25593608
http://dx.doi.org/10.4103/1817-1737.146873
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author Küpeli, Elif
Seyfettin, Pınar
Tepeoğlu, Merih Demirel
author_facet Küpeli, Elif
Seyfettin, Pınar
Tepeoğlu, Merih Demirel
author_sort Küpeli, Elif
collection PubMed
description INTRODUCTION: Conventional transbronchial needle aspiration (C-TBNA) is a minimally invasive, safe, and cost-effective technique in evaluating mediastinal lymphadenopathy. Previously we reported that the skills for C-TBNA can be acquired from the books. We studied the learning curve for C-TBNA for a single bronchoscopist at a tertiary-care center where ultrasound technology remains difficult to acquire . METHODS: We prospectively collected results of the first 99 consecutively performed C-TBNA between December 2009 and 2013. Patients were divided into 3 groups: (I): First 33, (II): Next 33 and (III): Last 33. Results were categorized as malignant, non-malignant or non-diagnostic. Diagnostic yield (DY), sensitivity (SEN), specificity (SPE), positive and negative predictive values (PPV, NPV), and accuracy (ACC) were calculated to learn the learning curve for C-TBNA. RESULTS: Total 99 patients (M:F = 62:37), mean age 58.2 ± 11.5 years, mean LN diameter 26.9 ± 9.8 mm underwent C-TBNA. Sixty-nine patients had lymph nodes (LNs) >20 mm in diameter. Final diagnoses were established by C-TBNA in 44 (yield 44.4%), mediastinoscopy 47, transthoracic needle aspiration 5, endobronchial biopsy 2 and peripheral LN biopsy 1. C-TBNA was exclusively diagnostic in 35.4%. Group I: DY: 42.4%, 64.7% in malignancies, 19% in benign conditions (P = 0.008). SEN, SPE, PPV, NPV, ACC = 70%, 100%, 100%, 66.6%, 78.7%, respectively. Group II: DY: 54.5% (36.4% exclusive), 88.2% in malignancies and 19% benign conditions (P = 0.000). SEN, SPE, PPV, NPV, ACC=72%, 100%, 100%, 53.3%, 78.7%, respectively. Group III: DY: 36.3% (27% exclusive), 100% in malignancies and 16% in benign conditions. SEN, SPE, PPV, NPV, ACC = 92.3%, 100%, 100%, 95.2%, 97%, respectively. No difference was found in relation to LN size or location and TBNA yield. CONCLUSION: C-TBNA can be easily learned and the proficiency can be attained with <66 procedures. In selected patients, its exclusivity could exceed 35%.
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spelling pubmed-42868462015-01-15 Conventional transbronchial needle aspiration: From acquisition to precision Küpeli, Elif Seyfettin, Pınar Tepeoğlu, Merih Demirel Ann Thorac Med Original Article INTRODUCTION: Conventional transbronchial needle aspiration (C-TBNA) is a minimally invasive, safe, and cost-effective technique in evaluating mediastinal lymphadenopathy. Previously we reported that the skills for C-TBNA can be acquired from the books. We studied the learning curve for C-TBNA for a single bronchoscopist at a tertiary-care center where ultrasound technology remains difficult to acquire . METHODS: We prospectively collected results of the first 99 consecutively performed C-TBNA between December 2009 and 2013. Patients were divided into 3 groups: (I): First 33, (II): Next 33 and (III): Last 33. Results were categorized as malignant, non-malignant or non-diagnostic. Diagnostic yield (DY), sensitivity (SEN), specificity (SPE), positive and negative predictive values (PPV, NPV), and accuracy (ACC) were calculated to learn the learning curve for C-TBNA. RESULTS: Total 99 patients (M:F = 62:37), mean age 58.2 ± 11.5 years, mean LN diameter 26.9 ± 9.8 mm underwent C-TBNA. Sixty-nine patients had lymph nodes (LNs) >20 mm in diameter. Final diagnoses were established by C-TBNA in 44 (yield 44.4%), mediastinoscopy 47, transthoracic needle aspiration 5, endobronchial biopsy 2 and peripheral LN biopsy 1. C-TBNA was exclusively diagnostic in 35.4%. Group I: DY: 42.4%, 64.7% in malignancies, 19% in benign conditions (P = 0.008). SEN, SPE, PPV, NPV, ACC = 70%, 100%, 100%, 66.6%, 78.7%, respectively. Group II: DY: 54.5% (36.4% exclusive), 88.2% in malignancies and 19% benign conditions (P = 0.000). SEN, SPE, PPV, NPV, ACC=72%, 100%, 100%, 53.3%, 78.7%, respectively. Group III: DY: 36.3% (27% exclusive), 100% in malignancies and 16% in benign conditions. SEN, SPE, PPV, NPV, ACC = 92.3%, 100%, 100%, 95.2%, 97%, respectively. No difference was found in relation to LN size or location and TBNA yield. CONCLUSION: C-TBNA can be easily learned and the proficiency can be attained with <66 procedures. In selected patients, its exclusivity could exceed 35%. Medknow Publications & Media Pvt Ltd 2015 /pmc/articles/PMC4286846/ /pubmed/25593608 http://dx.doi.org/10.4103/1817-1737.146873 Text en Copyright: © Annals of Thoracic Medicine http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Küpeli, Elif
Seyfettin, Pınar
Tepeoğlu, Merih Demirel
Conventional transbronchial needle aspiration: From acquisition to precision
title Conventional transbronchial needle aspiration: From acquisition to precision
title_full Conventional transbronchial needle aspiration: From acquisition to precision
title_fullStr Conventional transbronchial needle aspiration: From acquisition to precision
title_full_unstemmed Conventional transbronchial needle aspiration: From acquisition to precision
title_short Conventional transbronchial needle aspiration: From acquisition to precision
title_sort conventional transbronchial needle aspiration: from acquisition to precision
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4286846/
https://www.ncbi.nlm.nih.gov/pubmed/25593608
http://dx.doi.org/10.4103/1817-1737.146873
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