Lung clearance index for early detection of pulmonary complications after allo-HSCT in children
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Lung clearance index for early detection of pulmonary complications after allo-HSCT in children. / Uhlving, Hilde H; Skov, Linnea; Buchvald, Frederik; Heilmann, Carsten; Grell, Kathrine; Ifversen, Marianne; Green, Kent; Müller, Klaus; Nielsen, Kim G.
I: Pediatric Pulmonology, Bind 54, Nr. 7, 2019, s. 1029-1038.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Lung clearance index for early detection of pulmonary complications after allo-HSCT in children
AU - Uhlving, Hilde H
AU - Skov, Linnea
AU - Buchvald, Frederik
AU - Heilmann, Carsten
AU - Grell, Kathrine
AU - Ifversen, Marianne
AU - Green, Kent
AU - Müller, Klaus
AU - Nielsen, Kim G
N1 - © 2019 Wiley Periodicals, Inc.
PY - 2019
Y1 - 2019
N2 - BACKGROUND: Pulmonary chronic graft-vs-host disease (cGvHD) after hematopoietic stem cell transplantation (HSCT) is characterized by impairment of the small airways. Assessment of lung clearance index (LCI) gained from multiple breath washout (MBW) is more sensitive than spirometry in detection of small airways disease. The aim of this study was to describe the development of LCI during the first year after pediatric HSCT and how LCI relates to other pulmonary function parameters and cGvHD.METHODS: This prospective, longitudinal study included 28 pediatric HSCT-recipients. Spirometry, Sulfur hexafluoride MBW and diffusion capacity of the lungs were performed before and at 3, 6, 9, and 12 months after HSCT. Respiratory symptoms and signs of cGvHD were recorded at each visit.RESULTS: Before HSCT, 47.8% had abnormal LCI and 12.5% had abnormal forced expiratory volume in 1 second (FEV1 ). Patients with persisting respiratory symptoms 12 months post-HSCT had higher median LCI (factor 5.7, P = 0.0018) and lower FEV1 z-scores (-1.5, P = 0.033) post-HSCT compared to patients free of respiratory symptoms. Overall, post-HSCT LCI values were 3.49 times higher and FEV1 was 2.31 z-scores lower in eight patients with cGvHD in any organ system compared with patients without cGvHD (P = 0.0089 and P < 0.0001). LCI values during the first 3 months were not predictive of pulmonary cGvHD.CONCLUSION: LCI is a sensitive marker for cGvHD and high LCI values were associated with persisting respiratory symptoms after 1 year. Further evaluation of MBW in early detection of HSCT-related pulmonary complications require larger patient cohorts and closer follow-up during the first months after HSCT.
AB - BACKGROUND: Pulmonary chronic graft-vs-host disease (cGvHD) after hematopoietic stem cell transplantation (HSCT) is characterized by impairment of the small airways. Assessment of lung clearance index (LCI) gained from multiple breath washout (MBW) is more sensitive than spirometry in detection of small airways disease. The aim of this study was to describe the development of LCI during the first year after pediatric HSCT and how LCI relates to other pulmonary function parameters and cGvHD.METHODS: This prospective, longitudinal study included 28 pediatric HSCT-recipients. Spirometry, Sulfur hexafluoride MBW and diffusion capacity of the lungs were performed before and at 3, 6, 9, and 12 months after HSCT. Respiratory symptoms and signs of cGvHD were recorded at each visit.RESULTS: Before HSCT, 47.8% had abnormal LCI and 12.5% had abnormal forced expiratory volume in 1 second (FEV1 ). Patients with persisting respiratory symptoms 12 months post-HSCT had higher median LCI (factor 5.7, P = 0.0018) and lower FEV1 z-scores (-1.5, P = 0.033) post-HSCT compared to patients free of respiratory symptoms. Overall, post-HSCT LCI values were 3.49 times higher and FEV1 was 2.31 z-scores lower in eight patients with cGvHD in any organ system compared with patients without cGvHD (P = 0.0089 and P < 0.0001). LCI values during the first 3 months were not predictive of pulmonary cGvHD.CONCLUSION: LCI is a sensitive marker for cGvHD and high LCI values were associated with persisting respiratory symptoms after 1 year. Further evaluation of MBW in early detection of HSCT-related pulmonary complications require larger patient cohorts and closer follow-up during the first months after HSCT.
U2 - 10.1002/ppul.24340
DO - 10.1002/ppul.24340
M3 - Journal article
C2 - 31004401
VL - 54
SP - 1029
EP - 1038
JO - Pediatric pulmonology. Supplement
JF - Pediatric pulmonology. Supplement
SN - 1054-187X
IS - 7
ER -
ID: 217612512