Mucosal cryobiopsies : a new method for studying airway pathology in asthma
(2022) In ERJ open research 8(1).- Abstract
Background In vivo studies of airway pathology in obstructive lung disease are limited by poor quality of specimens obtained with forceps. Obtainment of cryobiopsies has increased diagnostic yield in cancer and interstitial lung disease but has not been used in patients with asthma. In a recent pilot study, we found mucosal cryobiopsies to be larger and more intact than conventional forceps biopsies. The aim of the present study was to compare quality and safety of mucosal cryobiopsies versus conventional forceps biopsies in patients with asthma. Methods Endobronchial biopsies were obtained with forceps and cryoprobe from patients with asthma not currently treated with inhaled steroids and evaluated histologically. Results A total of... (More)
Background In vivo studies of airway pathology in obstructive lung disease are limited by poor quality of specimens obtained with forceps. Obtainment of cryobiopsies has increased diagnostic yield in cancer and interstitial lung disease but has not been used in patients with asthma. In a recent pilot study, we found mucosal cryobiopsies to be larger and more intact than conventional forceps biopsies. The aim of the present study was to compare quality and safety of mucosal cryobiopsies versus conventional forceps biopsies in patients with asthma. Methods Endobronchial biopsies were obtained with forceps and cryoprobe from patients with asthma not currently treated with inhaled steroids and evaluated histologically. Results A total of 240 cryobiopsies and 288 forceps biopsies were obtained from 48 patients. Bleeding from the biopsy site was common but self-limiting. No major complications related to the procedure were seen. Cryobiopsy cross areas were four times larger compared with forceps. Stretches of intact epithelium were detected in all cryobiopsies compared to 33% in forceps biopsies. Further, the length of intact epithelium was on average four times longer in the cryobiopsies. Importantly, there was a good preservation of both antigens and mRNA in the cryobiopsies ensuring a suitability and robustness for immunohistochemistry and in situ hybridisation. Conclusion Obtainment of mucosal cryobiopsies in patients with asthma is safe and yields biopsies that are significantly larger and morphologically better preserved compared with traditional forceps biopsies. The cryotechnique thus seems to be a promising tool for future in vivo studies of airway pathology.
(Less)
- author
- Hvidtfeldt, Morten ; Sverrild, Asger ; Pulga, Alexis ; Frøssing, Laurits ; Silberbrandt, Alexander ; Sanden, Caroline LU ; Clausson, Carl Magnus LU ; Bornesund, Daisy LU ; Erjefält, Jonas LU and Porsbjerg, Celeste
- organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- in
- ERJ open research
- volume
- 8
- issue
- 1
- article number
- 00666-2021
- publisher
- European Respiratory Society
- external identifiers
-
- pmid:35350284
- scopus:85127619919
- ISSN
- 2312-0541
- DOI
- 10.1183/23120541.00666-2021
- language
- English
- LU publication?
- yes
- id
- ae6b6556-6fe9-420b-b967-87f99556ed9c
- date added to LUP
- 2022-06-17 13:57:16
- date last changed
- 2024-04-18 12:27:48
@article{ae6b6556-6fe9-420b-b967-87f99556ed9c,
abstract = {{<p>Background In vivo studies of airway pathology in obstructive lung disease are limited by poor quality of specimens obtained with forceps. Obtainment of cryobiopsies has increased diagnostic yield in cancer and interstitial lung disease but has not been used in patients with asthma. In a recent pilot study, we found mucosal cryobiopsies to be larger and more intact than conventional forceps biopsies. The aim of the present study was to compare quality and safety of mucosal cryobiopsies versus conventional forceps biopsies in patients with asthma. Methods Endobronchial biopsies were obtained with forceps and cryoprobe from patients with asthma not currently treated with inhaled steroids and evaluated histologically. Results A total of 240 cryobiopsies and 288 forceps biopsies were obtained from 48 patients. Bleeding from the biopsy site was common but self-limiting. No major complications related to the procedure were seen. Cryobiopsy cross areas were four times larger compared with forceps. Stretches of intact epithelium were detected in all cryobiopsies compared to 33% in forceps biopsies. Further, the length of intact epithelium was on average four times longer in the cryobiopsies. Importantly, there was a good preservation of both antigens and mRNA in the cryobiopsies ensuring a suitability and robustness for immunohistochemistry and in situ hybridisation. Conclusion Obtainment of mucosal cryobiopsies in patients with asthma is safe and yields biopsies that are significantly larger and morphologically better preserved compared with traditional forceps biopsies. The cryotechnique thus seems to be a promising tool for future in vivo studies of airway pathology.</p>}},
author = {{Hvidtfeldt, Morten and Sverrild, Asger and Pulga, Alexis and Frøssing, Laurits and Silberbrandt, Alexander and Sanden, Caroline and Clausson, Carl Magnus and Bornesund, Daisy and Erjefält, Jonas and Porsbjerg, Celeste}},
issn = {{2312-0541}},
language = {{eng}},
number = {{1}},
publisher = {{European Respiratory Society}},
series = {{ERJ open research}},
title = {{Mucosal cryobiopsies : a new method for studying airway pathology in asthma}},
url = {{http://dx.doi.org/10.1183/23120541.00666-2021}},
doi = {{10.1183/23120541.00666-2021}},
volume = {{8}},
year = {{2022}},
}