Evaluation of bronchial dysfunction using a new modality of breath sound analysis in asthmatic children
-
- Habukawa Chizu
- Department of Pediatrics, Minami Wakayama Medical Center
-
- Murakami Katsumi
- Department of Pediatrics, Kinki University Sakai Hospital
-
- Endoh Mitsuru
- R&D Division, Panasonic Corporation
-
- Yamada Maki
- R&D Division, Panasonic Corporation
-
- Horii Noriaki
- R&D Division, Panasonic Corporation
-
- Nagasaka Yukio
- Department of Pulmonary Medical Center, Otowa Hospital
書誌事項
- タイトル別名
-
- Evaluation of airflow limitation using a new modality of lung sound analysis in asthmatic children
この論文をさがす
抄録
Background: Reliable assessment of not only symptoms but also lung function is essential in asthma management. We developed a new technology for analyzing lung sounds and assessed its clinical usefulness in asthmatic children.<br>Methods: Forty-four children underwent lung sound recording with simultaneous airflow measurement using a sensor on the upper right anterior chest. We calculated a sound parameter index from the amplitude of inspiratory lung sounds at 700 Hz (ic700). ic700 were compared depending on flow and body size. In addition, 184 asthmatic children and 16 non-asthmatic children underwent lung sound analysis and lung function test in an asymptomatic state. In the asthma group, 135 children received treatment continually. The untreated asthma group included 28 children who had never received treatment continually and 21 children who had not been treated for at least 1 year. The asthmatic children were divided into four classes according to asthma severity. ic700 were compared depending on spirometric parameters and asthma severity classification.<br>Results: The influences of flow and body size were negligible for ic700. ic700 correlated with FEV1%, MMF and FEF50 (r = −0.436, −0.339 and −0.302, respectively). There was a significant difference of ic700 between asthmatic and non-asthmatic children (p < 0.001), and ic700 correlated with the classification of asthma severity (p < 0.001). The ic700 scores of the severe group were higher than those of the intermittent group and non-asthmatic children.<br>Conclusions: It was possible to evaluate airway dysfunction of asthma using ic700, which was calculated non-invasively by analyzing lung sounds alone, without measuring body size and airflow.
収録刊行物
-
- Allergology International
-
Allergology International 64 (1), 84-89, 2015
一般社団法人日本アレルギー学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282679609088896
-
- NII論文ID
- 130004873128
-
- ISSN
- 14401592
- 13238930
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可