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著作: Chikata Yusuke/[大藤 純]/Onodera Mutsuo/Nishimura Masaji/Humidification performance of humidifying devices for tracheostomized patients with spontaneous breathing: a bench study./[Respiratory Care]

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EID
284488
EOID
762999
Map
0
LastModified
2015年1月11日(日) 21:08:05
Operator
大家 隆弘
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TRUE
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Owner
大藤 純
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種別 必須
言語 必須 英語
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著者 必須
  1. (英) Chikata Yusuke
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    学籍番号 推奨
  2. 大藤 純([徳島大学.大学院医歯薬学研究部.医学域.医科学部門.外科系.救急集中治療医学]/[徳島大学.病院.中央診療施設等.救急集中治療部])
    役割 任意
    貢献度 任意
    学籍番号 推奨
  3. (英) Onodera Mutsuo
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    貢献度 任意
    学籍番号 推奨
  4. (英) Nishimura Masaji
    役割 任意
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題名 必須

(英) Humidification performance of humidifying devices for tracheostomized patients with spontaneous breathing: a bench study.

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(英) Heat and moisture exchangers (HMEs) are commonly used for humidifying respiratory gases administered to mechanically ventilated patients. While they are also applied to tracheostomized patients with spontaneous breathing, their performance in this role has not yet been clarified. We carried out a bench study to investigate the effects of spontaneous breathing parameters and oxygen flow on the humidification performance of 11 HMEs. We evaluated the humidification provided by 11 HMEs for tracheostomized patients, and also by a system delivering high-flow CPAP, and an oxygen mask with nebulizer heater. Spontaneous breathing was simulated with a mechanical ventilator, lung model, and servo-controlled heated humidifier at tidal volumes of 300, 500, and 700 mL, and breathing frequencies of 10 and 20 breaths/min. Expired gas was warmed to 37°C. The high-flow CPAP system was set to deliver 15, 30, and 45 L/min. With the 8 HMEs that were equipped with ports to deliver oxygen, and with the high-flow CPAP system, measurements were taken when delivering 0 and 3 L/min of dry oxygen. After stabilization we measured the absolute humidity (AH) of inspired gas with a hygrometer. AH differed among HMEs applied to tracheostomized patients with spontaneous breathing. For all the HMEs, as tidal volume increased, AH decreased. At 20 breaths/min, AH was higher than at 10 breaths/min. For all the HMEs, when oxygen was delivered, AH decreased to below 30 mg/L. With an oxygen mask and high-flow CPAP, at all settings, AH exceeded 30 mg/L. None of the HMEs provided adequate humidification when supplemental oxygen was added. In the ICU, caution is required when applying HME to tracheostomized patients with spontaneous breathing, especially when supplemental oxygen is required.

キーワード 推奨
  1. (英) Continuous Positive Airway Pressure
  2. (英) Heating
  3. (英) Humans
  4. (英) Humidity
  5. (英) Oxygen Inhalation Therapy
  6. (英) Respiratory Therapy
  7. (英) Tidal Volume
  8. (英) Tracheostomy
発行所 推奨
誌名 必須 Respiratory Care(American Association for Inhalation Therapy/American Association for Respiratory Therapy/American Association for Respiratory Care)
(pISSN: 0020-1324, eISSN: 1943-3654)
ISSN 任意 1943-3654
ISSN: 0020-1324 (pISSN: 0020-1324, eISSN: 1943-3654)
Title: Respiratory care
Title(ISO): Respir Care
Publisher: American Association for Respiratory Care
 (NLM Catalog  (Scopus  (CrossRef (Scopus information is found. [need login])
必須 58
必須 9
必須 1442 1448
都市 任意
年月日 必須 2013年 2月 5日
URL 任意
DOI 任意 10.4187/respcare.02093    (→Scopusで検索)
PMID 任意 23386732    (→Scopusで検索)
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被引用数 任意
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  1. (英) Article.ELocationID: 10.4187/respcare.02093

  2. (英) Article.PublicationTypeList.PublicationType: Evaluation Studies

  3. (英) Article.PublicationTypeList.PublicationType: Journal Article

  4. (英) KeywordList.Keyword: CPAP

  5. (英) KeywordList.Keyword: HME

  6. (英) KeywordList.Keyword: heat and moisture exchanger

  7. (英) KeywordList.Keyword: humidification

  8. (英) KeywordList.Keyword: mechanical ventilation

  9. (英) KeywordList.Keyword: respiratory

  10. (英) KeywordList.Keyword: spontaneous breathing

  11. (英) KeywordList.Keyword: supplemental oxygen

  12. (英) KeywordList.Keyword: tracheostomy