Lung ultrasound to phenotype chronic lung allograft dysfunction in lung transplant recipients. A prospective observational study
نویسندگان
چکیده
Background: Bronchiolitis obliterans syndrome (BOS) and restricted allograft (RAS) are two distinct phenotypes of chronic lung dysfunction (CLAD) in transplant (LTx) recipients. Contrary to BOS, RAS can radiologically present with a pleuroparenchymal fibroelastosis (PPFE) pattern. This study investigates ultrasound (LUS) identify potential surrogate markers radiological PPFE pattern order distinguish CLAD phenotype from BOS. Methods: A prospective cohort performed at National Lung Transplantation Center during June 2016 December 2017. Patients were examined LUS high-resolution computed tomography the thorax (HRCT). Results: Twenty-five patients (72% males, median age 54 years) included corresponding 19/6 BOS/RAS patients. LUS-identified pleural thickening was more pronounced vs. BOS (5.6 2.9 mm) compatible on HRCT. as an indicator patients’ upper lobes showed sensitivity 100% (95%CI; 54-100%), specificity (95% CI; 82-100%), PPV NPV 82-100%). Conclusion: Apical detected by HRCT separates CLAD. We propose supplementary tool for initial phenotyping.
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ژورنال
عنوان ژورنال: Ultrasound
سال: 2021
ISSN: ['1743-1344', '1742-271X']
DOI: https://doi.org/10.1183/13993003.congress-2021.oa4340