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タイトル: | Impact of COPD exacerbations on osteoporosis assessed by chest CT scan. |
著者: | Kiyokawa, Hirofumi Muro, Shigeo Oguma, Tsuyoshi Sato, Susumu https://orcid.org/0000-0002-9626-1090 (unconfirmed) Tanabe, Naoya https://orcid.org/0000-0002-7481-0212 (unconfirmed) Takahashi, Tamaki Kudo, Megumi Kinose, Daisuke Kondoh, Hiroshi Kubo, Takeshi Hoshino, Yuma Ogawa, Emiko Hirai, Toyohiro Mishima, Michiaki |
著者名の別形: | 室, 繁郎 |
キーワード: | Exacerbation Osteoporosis Bone mineral density Chronic obstmetive pulmonary disease Emphysema |
発行日: | Jun-2012 |
出版者: | Informa Healthcare |
誌名: | COPD: Journal of Chronic Obstructive Pulmonary Disease |
巻: | 9 |
号: | 3 |
開始ページ: | 235 |
終了ページ: | 242 |
抄録: | Background: COPD pathology involves not only the lungs but also extrapulmonary abnormalities. Osteoporosis is one of the most important abnormalities because it may cause vertebral compression fractures and deteriorate pulmonary function. COPD patients have many risk factors for osteoporosis, such as low BMI, decreased activity, systemic infl ammation, and use of corticosteroids. Some of these factors have been shown to deteriorate with COPD exacerbations. We previously demonstrated the correlation between emphysema and osteoporosis and between emphysema progression and COPD exacerbations. Thus, the hypothesis that exacerbation causes osteoporosis progression in COPD patients was investigated. Methods: Forty-two COPD patients not on osteoporosis treatment for over 2 years were recruited. During follow-up, exacerbations had been prospectively recorded. Thoracic vertebral bone mineral density (BMD) was measured using chest CT, and the annual change in BMD was calculated. The change was compared between patients with and without a history of exacerbations. Results: The decrease in thoracic vertebral BMD was greater in patients with than in those without a history of exacerbations (median ΔBMD mg/ml⋅year: –3.78 versus –0.30, p = 0.02). Moreover, multivariate regression analysis showed that exacerbations and baseline PaO 2 were independent predictors of the BMD decrease (R 2 = 0.20, p = 0.007, and R 2 = 0.09, p = 0.03, respectively) after adjustment for baseline age, smoking status, and airfl ow limitation. Conclusions: This is the fi rst longitudinal study to demonstrate that COPD exacerbations are independently associated with osteoporosis progression. Osteoporosis progression should be evaluated in COPD patients, especially in those with a history of frequent exacerbations. |
著作権等: | © Informa Healthcare USA, Inc. |
URI: | http://hdl.handle.net/2433/160226 |
DOI(出版社版): | 10.3109/15412555.2011.650243 |
PubMed ID: | 22360380 |
出現コレクション: | 学術雑誌掲載論文等 |
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