The goal of this clinical trial is to evaluate which biopsy collection method helps to better diagnose rejection and relevant pathologic findings in lung transplant recipients. The main questions it aims to answer are: Does the 1.1 mm cryoprobe or the biopsy forceps provide better quality samples of lung tissue for detecting rejection in transplant recipients? How much tissue is adequate for lung transplant 1.1 mm cryobiopsy samples as compared to biopsy forceps? Which samples received by the pathologist did they find they were most confident to exclude rejection, based on their satisfaction with the samples? Which collection method has the least amount of procedural time? Researchers will compare lung tissue samples obtained using a 1.1mm cryoprobe and a biopsy forceps during the lung transplant. Participants will: Be randomly assigned to receive either the cryoprobe or biopsy forceps collection method at the time of biopsy. Assessed for any adverse events following the biopsy for up to 30 days after transplant.
The purpose of this 1:1 randomized clinical trial is to compare the histological quality and diagnostic yield of tissue samples acquired using a 1.1 mm cryoprobe with those obtained with biopsy forceps in lung transplant recipients for graft surveillance.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
DOUBLE
Enrollment
100
10-12 transbronchial lung biopsies will be obtained using standard of care biopsy forceps: Olympus disposable EndoJaw (FB-211), Olympus, USA
3 transbronchial lung biopsies of two separate lobes will be obtained using a flexible cryoprobe: single-use, ø 1.1 mm (Erbe Elektromedizin GmbH, 20402-401) used with ERBECRYO 2 (Erbe Elektromedizin GmbH, 10402-000
Mayo Clinic in Rochester
Rochester, Minnesota, United States
RECRUITINGQuality and diagnostic yield of tissue samples
Histological accessibility grade is determined by the pathologist according to the Lung Allograft Standard Histological Analysis (LASHA) scale and the 2007 Revision of the 1996 working formulation for the Standardization of Nomenclature in the Diagnosis of Lung Rejection, published by the ISHLT.
Time frame: Baseline
Time duration
Duration of each individual biopsy procedure from insertion of the bronchoscope after airway has been secured until bronchoscope is withdrawn. .
Time frame: Baseline
Tissue sample adequacy
Number of biopsy samples that are adequate to determine rejection based on the presence of well expanded alveoli, as determined by the pathologist.
Time frame: Baseline
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