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Abstract

Medicine

Transbronchial Lung Cryobiopsy for Diagnosing Interstitial Lung Diseases and Peripheral Pulmonary Lesions - A Stepwise Approach

Published: July 21st, 2023

DOI:

10.3791/65753

1South Danish Center for Interstitial Lung Diseases (SCILS), Department of Respiratory Medicine, Odense University Hospital, 2Odense Respiratory Research Unit (ODIN), Department of Clinical Research, University of Southern Denmark, 3Department of Respiratory Diseases and Allergy, Aarhus University Hospital

Abstract

Transbronchial lung cryobiopsy (TBLC) is an invasive procedure increasingly implemented during the last decade as an alternative to video-assisted thoracic surgery lung biopsy (SLB) for diagnosing interstitial lung diseases (ILDs). The indication for TBLC has primarily been to sub-classify a specific ILD subtype when this cannot be achieved on the basis of a preceding multidisciplinary team discussion. Although SLB is considered the gold standard for establishing a histological diagnosis, TBLC has been gradually suggested as the first-choice histological diagnostic modality in patients with unclassified ILDs due to a comparable diagnostic yield with SLB, but superior to SLB in terms of complications, including mortality. During recent years, radial endobronchial ultrasound (R-EBUS) and electromagnetic navigation bronchoscopy (ENB)-guided TBLC for peripheral pulmonary lesions have also been described as safe procedures, which may improve the diagnostic yield compared to forceps biopsies. Still, the diagnostic properties of TBLC rely on the quality of the procedure's performance. This article aims to describe the stepwise approach to conducting TBLC with a flexible bronchoscope for the different indications mentioned, which might be helpful for novice bronchoscopists performing TBLC.

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Keywords Transbronchial Lung Cryobiopsy

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