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- Title
Evaluation of Bone Mineral Density in Lung Transplant Recipients by Chest Computed Tomography.
- Authors
Mori, Ryobu; Handa, Tomohiro; Ohsumi, Akihiro; Ikezoe, Kohei; Tanizawa, Kiminobu; Uozumi, Ryuji; Tanabe, Naoya; Oguma, Tsuyoshi; Sakamoto, Ryo; Hamaji, Masatsugu; Nakajima, Daisuke; Yutaka, Yojiro; Tanaka, Satona; Yamada, Yoshito; Oshima, Yohei; Sato, Susumu; Fukui, Motonari; Date, Hiroshi; Hirai, Toyohiro
- Abstract
Introduction: Lung transplantation (LT) recipients are at risk of bone mineral density (BMD) loss. Pre- and post-LT BMD loss has been reported in some cross-sectional studies; however, there are limited studies regarding the serial BMD change in LT recipients. The aim of this study was to investigate the serial BMD changes and the clinical characteristics associated with BMD decline. Methods: This was a single-center, retrospective observational study. BMD was serially measured in thoracic vertebral bodies (Th4, 7, 10) using computed tomography (CT) before and 3 and 12 months after LT. The frequency of osteoporosis and factors associated with pre-LT osteoporosis and post-LT BMD loss were evaluated. The frequency of post-LT compression fracture and its associated factors were also analyzed. Results: This study included 128 adult LT recipients. LT recipients had decreased BMD (151.8 ± 42.2 mg/mL) before LT compared with age-, sex-, and smoking index-matched controls (176.2 ± 35.7 mg/mL). The diagnosis of COPD was associated with pre-LT osteoporosis. LT recipients experience further BMD decline after transplantation, and the percentage of recipients classified as exhibiting osteoporosis increased from 20% at baseline to 43% at 12 months. Recipients who had been taking no or small doses of glucocorticoids before LT had rapid BMD loss after LT. Early bisphosphonate use (within 3 months) after LT attenuated BMD loss and decreased new-onset compression fracture. Conclusion: LT recipients are at high risk for BMD loss and compression fracture after LT. Early bisphosphonate use may decrease BMD loss and compression fracture.
- Subjects
GLUCOCORTICOIDS; CHEST X rays; SCIENTIFIC observation; DIPHOSPHONATES; LUNG transplantation; AGE distribution; PATIENTS; RETROSPECTIVE studies; OSTEOPOROSIS; SEX distribution; COMPRESSION fractures; PRE-tests &; post-tests; OBSTRUCTIVE lung diseases; DESCRIPTIVE statistics; BONE density; COMPUTED tomography; SMOKING; TRANSPLANTATION of organs, tissues, etc.; THORACIC vertebrae; DISEASE risk factors; DISEASE complications
- Publication
Respiration, 2024, Vol 103, Issue 1, p1
- ISSN
0025-7931
- Publication type
Article
- DOI
10.1159/000535269