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Kogo M, Sato S, Muro S, Matsumoto H, Nomura N, Oguma T, Sunadome H, Nagasaki T, Murase K, Kawaguchi T, Tabara Y, Matsuda F, Chin K, Hirai T. Longitudinal Changes and Association of Respiratory Symptoms with Preserved Ratio Impaired Spirometry (PRISm): The Nagahama Study. Ann Am Thorac Soc 2023; 20:1578-1586. [PMID: 37560979 DOI: 10.1513/annalsats.202301-050oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 08/09/2023] [Indexed: 08/11/2023] Open
Abstract
Rationale: Subjects with preserved ratio impaired spirometry (PRISm) experience increased respiratory symptoms, although they present heterogeneous characteristics. However, the longitudinal changes in these symptoms and respiratory function are not well known. Objectives: To investigate PRISm from the viewpoint of respiratory symptoms in a longitudinal, large-scale general population study. Methods: The Nagahama study included 9,789 inhabitants, and a follow-up evaluation was conducted after 5 years. Spirometry and self-administered questionnaires regarding respiratory symptoms, including prolonged cough, sputum and dyspnea, and comorbidities were conducted. Results: In total, 9,760 subjects were analyzed, and 438 subjects had PRISm. Among the subjects with PRISm, 53% presented with respiratory symptoms; dyspnea was independently associated with PRISm. Follow-up assessment revealed that 73% of the subjects with PRISm with respiratory symptoms were consistently symptomatic, whereas 39% of the asymptomatic subjects with PRISm developed respiratory symptoms within 5 years. In addition, among subjects with respiratory symptoms without airflow limitation at baseline, PRISm was a risk factor for the development of airflow limitation independent of smoking history and comorbidities. Conclusions: This study demonstrated that 53% of the subjects with PRISm had respiratory symptoms; dyspnea was a distinct characteristic of PRISm. Approximately three-fourths of the symptomatic subjects with PRISm consistently complained of respiratory symptoms within 5 years. Together with our result that PRISm itself is an independent risk factor for the development of chronic obstructive pulmonary disease among subjects with respiratory symptoms, the clinical course of subjects with PRISm with symptoms requires careful monitoring.
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Affiliation(s)
| | - Susumu Sato
- Department of Respiratory Medicine
- Department of Respiratory Care and Sleep Control Medicine, and
| | - Shigeo Muro
- Department of Respiratory Medicine, Nara Medical University, Nara, Japan
| | - Hisako Matsumoto
- Department of Respiratory Medicine
- Department of Respiratory Medicine and Allergology, Kindai University, Osaka, Japan
| | | | | | | | - Tadao Nagasaki
- Department of Respiratory Care and Sleep Control Medicine, and
| | - Kimihiko Murase
- Department of Respiratory Care and Sleep Control Medicine, and
| | - Takahisa Kawaguchi
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yasuharu Tabara
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Graduate School of Public Health, Shizuoka Graduate University of Public Health, Shizuoka, Japan; and
| | - Fumihiko Matsuda
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kazuo Chin
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Division of Sleep Medicine, Department of Sleep Medicine and Respiratory Care, Nihon University School of Medicine, Chiyoda, Japan
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Koskela HO, Lätti AM. Sputum production in chronic cough increases the probability of asthma: a cross-sectional questionnaire study. ERJ Open Res 2021; 7:00086-2021. [PMID: 34046486 PMCID: PMC8141703 DOI: 10.1183/23120541.00086-2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/13/2021] [Indexed: 11/05/2022] Open
Abstract
Sputum production may suggest asthma as the most probable background disorder maintaining the cough https://bit.ly/2Qk8aar.
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Affiliation(s)
- Heikki O. Koskela
- Unit for Medicine and Clinical Research, Pulmonary Division, Kuopio University Hospital, Kuopio, Finland
- School of Medicine, Institute of Clinical Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Anne M. Lätti
- Unit for Medicine and Clinical Research, Pulmonary Division, Kuopio University Hospital, Kuopio, Finland
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