A New Modality Using Breath Sound Analysis to Evaluate the Control Level of Asthma
Background: Reliable symptom assessment is essential in asthma management. We developed new technology for analyzing breath sounds and assessed its clinical usefulness for monitoring asthmatic children. Methods: Eighty asthmatic children and 59 non-asthmatic children underwent breath sound analysis...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2013-01-01
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| Series: | Allergology International |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1323893015301052 |
| _version_ | 1828525344753188864 |
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| author | Chizu Habukawa Katsumi Murakami Noriaki Horii Maki Yamada Yukio Nagasaka |
| author_facet | Chizu Habukawa Katsumi Murakami Noriaki Horii Maki Yamada Yukio Nagasaka |
| author_sort | Chizu Habukawa |
| collection | DOAJ |
| description | Background: Reliable symptom assessment is essential in asthma management. We developed new technology for analyzing breath sounds and assessed its clinical usefulness for monitoring asthmatic children.
Methods: Eighty asthmatic children and 59 non-asthmatic children underwent breath sound analysis in an asymptomatic state. Their asthma control was assessed by the Asthma Control TestTM or Childhood ACTTM scores and divided into two groups, namely, well-controlled (perfect) (n = 19) and not well-controlled (not perfect) (n = 61). Breath sounds were recorded using two sensors, located on the right anterior chest and trachea. We calculated the acoustic transfer characteristics between the two points, which indicated the relationship between frequencies and attenuation during breath sound propagation. Two indices of sound parameters, the chest wall sound index (CWI) and the tracheal sound index (TRI), were calculated from the transfer characteristics and tracheal sounds. We also developed a new parameter, the breath sound index (BSI), on a 2-dimensional diagram of CWI and TRI and tried to determine whether BSI may clarify asthma control better than CWI or TRI alone.
Results: There was a significant difference in TRI and BSI between asthmatic and non-asthmatic children (p = 0.007, p < 0.001). There was a significant difference in CWI and TRI between the well-controlled and not-wellcontrolled groups (p < 0.001). BSI discriminated between the two groups accurately (p < 0.001). The sensitivity and specificity of BSI for asthma control were 83.6% and 84.2%, respectively.
Conclusions: Asthma control could be evaluated using a new index calculated from breath sound analysis. |
| first_indexed | 2024-12-11T21:04:02Z |
| format | Article |
| id | doaj.art-421526f2b74b41a1be2ba6a667d7d6aa |
| institution | Directory Open Access Journal |
| issn | 1323-8930 |
| language | English |
| last_indexed | 2024-12-11T21:04:02Z |
| publishDate | 2013-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Allergology International |
| spelling | doaj.art-421526f2b74b41a1be2ba6a667d7d6aa2022-12-22T00:50:55ZengElsevierAllergology International1323-89302013-01-01621293510.2332/allergolint.12-OA-0428A New Modality Using Breath Sound Analysis to Evaluate the Control Level of AsthmaChizu Habukawa0Katsumi Murakami1Noriaki Horii2Maki Yamada3Yukio Nagasaka4Department of Pediatrics, Minami Wakayama Medical Center, WakayamaDepartment of Pediatrics, Kinki University Sakai Hospital, Osaka, JapanPlatform Development Center, Panasonic Corporation, Osaka, Japan.Platform Development Center, Panasonic Corporation, Osaka, Japan.Department of Pulmonary, Medicine, Kinki University Sakai Hospital, Osaka, JapanBackground: Reliable symptom assessment is essential in asthma management. We developed new technology for analyzing breath sounds and assessed its clinical usefulness for monitoring asthmatic children. Methods: Eighty asthmatic children and 59 non-asthmatic children underwent breath sound analysis in an asymptomatic state. Their asthma control was assessed by the Asthma Control TestTM or Childhood ACTTM scores and divided into two groups, namely, well-controlled (perfect) (n = 19) and not well-controlled (not perfect) (n = 61). Breath sounds were recorded using two sensors, located on the right anterior chest and trachea. We calculated the acoustic transfer characteristics between the two points, which indicated the relationship between frequencies and attenuation during breath sound propagation. Two indices of sound parameters, the chest wall sound index (CWI) and the tracheal sound index (TRI), were calculated from the transfer characteristics and tracheal sounds. We also developed a new parameter, the breath sound index (BSI), on a 2-dimensional diagram of CWI and TRI and tried to determine whether BSI may clarify asthma control better than CWI or TRI alone. Results: There was a significant difference in TRI and BSI between asthmatic and non-asthmatic children (p = 0.007, p < 0.001). There was a significant difference in CWI and TRI between the well-controlled and not-wellcontrolled groups (p < 0.001). BSI discriminated between the two groups accurately (p < 0.001). The sensitivity and specificity of BSI for asthma control were 83.6% and 84.2%, respectively. Conclusions: Asthma control could be evaluated using a new index calculated from breath sound analysis.http://www.sciencedirect.com/science/article/pii/S1323893015301052airway managementasthmaBSIchildrenCWITRI |
| spellingShingle | Chizu Habukawa Katsumi Murakami Noriaki Horii Maki Yamada Yukio Nagasaka A New Modality Using Breath Sound Analysis to Evaluate the Control Level of Asthma Allergology International airway management asthma BSI children CWI TRI |
| title | A New Modality Using Breath Sound Analysis to Evaluate the Control Level of Asthma |
| title_full | A New Modality Using Breath Sound Analysis to Evaluate the Control Level of Asthma |
| title_fullStr | A New Modality Using Breath Sound Analysis to Evaluate the Control Level of Asthma |
| title_full_unstemmed | A New Modality Using Breath Sound Analysis to Evaluate the Control Level of Asthma |
| title_short | A New Modality Using Breath Sound Analysis to Evaluate the Control Level of Asthma |
| title_sort | new modality using breath sound analysis to evaluate the control level of asthma |
| topic | airway management asthma BSI children CWI TRI |
| url | http://www.sciencedirect.com/science/article/pii/S1323893015301052 |
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