| Autor: |
Tomotsugu Takano, Kazuya Tsubouchi, Naoki Hamada, Katsuyuki Ichiki, Ryo Torii, Shohei Takata, Satoru Kawakami, Noriaki Nakagaki, Makoto Yoshida, Yasuhiko Kitasato, Kazunori Tobino, Eiji Harada, Hiroshi Ishii, Hiroshi Wataya, Takashige Maeyama, Masaki Fujita, Kazuhiro Yatera, Masaki Okamoto, Hidetake Yabuuchi, Fumiaki Kiyomi, Shoji Tokunaga, Yoichi Nakanishi, Isamu Okamoto |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
BMC Pulmonary Medicine, Vol 24, Iss 1, Pp 1-10 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1471-2466 |
| DOI: |
10.1186/s12890-024-03347-5 |
| Popis: |
Abstract Background We conducted a prospective observational study to elucidate the long-term prognosis and management of chronic obstructive pulmonary disease (COPD) in clinical practice in Japan in the mid-2010s. Methods This prospective cohort study included 29 facilities. Data from 427 patients clinically diagnosed with COPD, enrolled between September 2013 and April 2016, were analyzed. Interstitial pneumonia was excluded through a central multidisciplinary discussion. Follow-up data were collected for up to 5 years after patient registration. Results At the time of registration, 53 patients clinically diagnosed with COPD did not have airflow limitation (AFL). In the cohort with AFL (n = 374), 232 patients completed a 5-year follow-up, while 49 patients died during the 1576.6 person-years of observation. The mean age was 71.7 years with an overall 5-year survival rate of 85.4%. Stratified by % forced expiratory volume in one second (FEV1), survival rates were 93.6% in the mild and moderate AFL group, 82.5% in the severe AFL group, and 66.1% in the very severe AFL group. The prognosis of the subpopulation without AFL was poor with a 5-year survival of 81.6%. This subpopulation exhibited respiratory symptoms, low vital capacity and total lung capacity, and emphysematous changes. Conclusions Our study presents the 5-year survival and real-world clinical practice scenario of a prospective cohort of patients clinically diagnosed with COPD in Japan in the mid-2010s. The survival rates of our cohort were numerically better than the Japanese cohort in the 1990s, regardless of the high median age of this cohort. Overall, 12.4% of the patients in this cohort with no AFL at registration exhibited respiratory symptoms and distinct spirometric patterns, and had a poor prognosis. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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