| Inadequate gas supply to patients with an adjustable pressure-limiting valve in the fully opened position. | |
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MedLine Citation:
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PMID: 20464429 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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With spontaneous ventilation, sufficient exhaust resistance at the adjustable pressure-limiting (APL) valve when fully opened ensures that the reservoir bag fills and adequately supplies gas to patients. A lack of exhaust resistance with the APL valve fully open caused inadequate gas supply to patients with four types of anesthesia machines: SA2 (Dräger), Excel-210 SE (GE), Fabius (Dräger), and Cato (Dräger). Mechanically, the SA2 and Excel-210 SE APL valve systems, which are of the spring-loaded disc type positioned horizontally, cannot maintain sufficient exhaust resistance with the APL valve fully open. As for the Fabius and Cato, an exhaust valve independent of the APL valve should maintain sufficient exhaust resistance continuously. However, accumulated viscous substances on the thin diaphragm of the exhaust valve contributed to hindrance of diaphragm closure. |
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Authors:
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Go Hirabayashi; Hiroyuki Uchino; Yukihiko Ogihara; Akibumi Omi; Akito Ohmura |
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Publication Detail:
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Type: Journal Article Date: 2010-05-13 |
Journal Detail:
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Title: Journal of anesthesia Volume: 24 ISSN: 1438-8359 ISO Abbreviation: J Anesth Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-08-05 Completed Date: 2010-12-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8905667 Medline TA: J Anesth Country: Japan |
Other Details:
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Languages: eng Pagination: 626-9 Citation Subset: IM |
Affiliation:
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Department of Anesthesiology, Hachioji Medical Center, Tokyo Medical University, 1163 Tatemachi, Hachioji, Tokyo, 193-0998, Japan. goh@tokyo-med.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Air Pressure Anesthesiology / instrumentation* Humans Medication Errors* Ventilators, Mechanical* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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