Humidification Performance of Heat and Moisture Exchangers for Pediatric Use
Background. While heat and moisture exchangers (HMEs) have been increasingly used for humidification during mechanical ventilation, the efficacy of pediatric HMEs has not yet been fully evaluated. Methods. We tested ten pediatric HMEs when mechanically ventilating a model lung at respiratory rates o...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Critical Care Research and Practice |
| Online Access: | http://dx.doi.org/10.1155/2012/439267 |
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| _version_ | 1832561028063297536 |
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| author | Yusuke Chikata Chihiro Sumida Jun Oto Hideaki Imanaka Masaji Nishimura |
| author_facet | Yusuke Chikata Chihiro Sumida Jun Oto Hideaki Imanaka Masaji Nishimura |
| author_sort | Yusuke Chikata |
| collection | DOAJ |
| description | Background. While heat and moisture exchangers (HMEs) have been increasingly used for humidification during mechanical ventilation, the efficacy of pediatric HMEs has not yet been fully evaluated. Methods. We tested ten pediatric HMEs when mechanically ventilating a model lung at respiratory rates of 20 and 30 breaths/min and pressure control of 10, 15, and 20 cmH2O. The expiratory gas passed through a heated humidifier. We created two rates of leakage: 3.2 L/min (small) and 5.1 L/min (large) when pressure was 10 cmH2O. We measured absolute humidity (AH) at the Y-piece. Results. Without leakage, eight of ten HMEs maintained AH at more than 30 mg/L. With the small leak, AH decreased below 30 mg/L (26.6 to 29.5 mg/L), decreasing further (19.7 to 27.3 mg/L) with the large leak. Respiratory rate and pressure control level did not affect AH values. Conclusions. Pediatric HMEs provide adequate humidification performance when leakage is absent. |
| format | Article |
| id | doaj-art-8742f5de07264799b6fbea6724c927f1 |
| institution | Kabale University |
| issn | 2090-1305 2090-1313 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Critical Care Research and Practice |
| spelling | doaj-art-8742f5de07264799b6fbea6724c927f12025-02-03T01:26:13ZengWileyCritical Care Research and Practice2090-13052090-13132012-01-01201210.1155/2012/439267439267Humidification Performance of Heat and Moisture Exchangers for Pediatric UseYusuke Chikata0Chihiro Sumida1Jun Oto2Hideaki Imanaka3Masaji Nishimura4The University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima City, Tokushima 770-8503, JapanFaculty of Medicine, The University of Tokushima, 3-18-15 Kuramoto-cho, Tokushima City, Tokushima 770-8503, JapanDepartment of Emergency and Critical Care Medicine, The University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima City, Tokushima 770-8503, JapanDepartment of Emergency and Disaster Medicine, Tokushima University Hospital, 2-50-1, Kuramoto-cho, Tokushima City, Tokushima 770-8503, JapanDepartment of Emergency and Critical Care Medicine, The University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima City, Tokushima 770-8503, JapanBackground. While heat and moisture exchangers (HMEs) have been increasingly used for humidification during mechanical ventilation, the efficacy of pediatric HMEs has not yet been fully evaluated. Methods. We tested ten pediatric HMEs when mechanically ventilating a model lung at respiratory rates of 20 and 30 breaths/min and pressure control of 10, 15, and 20 cmH2O. The expiratory gas passed through a heated humidifier. We created two rates of leakage: 3.2 L/min (small) and 5.1 L/min (large) when pressure was 10 cmH2O. We measured absolute humidity (AH) at the Y-piece. Results. Without leakage, eight of ten HMEs maintained AH at more than 30 mg/L. With the small leak, AH decreased below 30 mg/L (26.6 to 29.5 mg/L), decreasing further (19.7 to 27.3 mg/L) with the large leak. Respiratory rate and pressure control level did not affect AH values. Conclusions. Pediatric HMEs provide adequate humidification performance when leakage is absent.http://dx.doi.org/10.1155/2012/439267 |
| spellingShingle | Yusuke Chikata Chihiro Sumida Jun Oto Hideaki Imanaka Masaji Nishimura Humidification Performance of Heat and Moisture Exchangers for Pediatric Use Critical Care Research and Practice |
| title | Humidification Performance of Heat and Moisture Exchangers for Pediatric Use |
| title_full | Humidification Performance of Heat and Moisture Exchangers for Pediatric Use |
| title_fullStr | Humidification Performance of Heat and Moisture Exchangers for Pediatric Use |
| title_full_unstemmed | Humidification Performance of Heat and Moisture Exchangers for Pediatric Use |
| title_short | Humidification Performance of Heat and Moisture Exchangers for Pediatric Use |
| title_sort | humidification performance of heat and moisture exchangers for pediatric use |
| url | http://dx.doi.org/10.1155/2012/439267 |
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