Comparing Cryobiopsies and Forceps Biopsies for Lung Tissue Diagnosis
Author Information
Author(s): Griff Sergej, Ammenwerth Wim, Schönfeld Nicolas, Bauer Torsten T, Mairinger Thomas, Blum Torsten-Gerriet, Kollmeier Jens, Grüning Wolfram
Primary Institution: HELIOS Klinikum Emil von Behring, Berlin, Germany
Hypothesis
Cryobiopsy specimens will be larger and of higher quality than those obtained by forceps transbronchial biopsies.
Conclusion
Cryobiopsy specimens are significantly larger and of higher quality than forceps biopsies, with fewer artifacts.
Supporting Evidence
- Cryobiopsies had a mean size of 17.1 mm2 compared to 3.8 mm2 for forceps biopsies.
- Alveolar tissue was found in 73% of cryobiopsies versus 56% in forceps biopsies.
- None of the cryobiopsy specimens showed artifacts, while all forceps samples did.
Takeaway
This study shows that using a special freezing technique to take lung biopsies gives bigger and better samples than the usual method.
Methodology
A prospective case series comparing 15 cryobiopsies and 18 forceps biopsies from patients undergoing flexible bronchoscopy.
Potential Biases
Potential bias due to non-randomized selection of control group.
Limitations
No patient randomization and no ethics committee approval due to the nature of the study.
Participant Demographics
Patients undergoing flexible bronchoscopy for lung biopsy.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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