| Laryngopharyngeal pH measurement. | |
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MedLine Citation:
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PMID: 15208239 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: Most emergency department (ED) intubations are to prevent gastric contents aspiration. The incidence of aspiration is unknown and intubation has complications. Balancing these risks requires an idea of the incidence of aspiration. This study assessed one technique for investigating the aspiration risk in ED patients. Cricoid pressure is used to reduce this risk and the technique may also examine this manoeuvre. METHODS: Cohorts of unconscious adult ED and elective surgical patients were recruited. The posterior pharyngeal wall pH was measured immediately before and after intubation. Pharyngeal pH was used to indicate risk of aspiration, and pH change to assess the efficacy of cricoid pressure. RESULTS: Eight ED and 48 control patients were recruited. In the ED cohort, pH ranged from 6.0 to 8.0 before intubation and 4.7 to 8.0 after intubation: a mean decrease of 0.3 (95% CI 1.5 decrease to 0.9 increase). In the control cohort pH ranged from 5.8 to 8.0 before intubation and 6.0 to 8.0 after intubation: a mean increase of 0.4 (95% CI 0.1 to 0.6 increase). CONCLUSIONS: This is a simple, cheap, and repeatable technique for assessing aspiration risk in emergency intubations. A larger study is required to assess the efficacy of cricoid pressure. |
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Authors:
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E J Spurrier; M J Clancy; C D Deakin |
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Publication Detail:
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Type: Evaluation Studies; Journal Article |
Journal Detail:
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Title: Emergency medicine journal : EMJ Volume: 21 ISSN: 1472-0213 ISO Abbreviation: Emerg Med J Publication Date: 2004 Jul |
Date Detail:
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Created Date: 2004-06-21 Completed Date: 2005-02-22 Revised Date: 2008-11-20 |
Medline Journal Info:
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Nlm Unique ID: 100963089 Medline TA: Emerg Med J Country: England |
Other Details:
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Languages: eng Pagination: 493-4 Citation Subset: IM |
Affiliation:
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School of Medicine, Southampton University School of Medicine, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK. babydoc@edspurrier.co.uk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Cricoid Cartilage Female Humans Hydrogen-Ion Concentration Hypopharynx / metabolism* Intubation, Intratracheal / adverse effects* Male Middle Aged Pilot Projects Pneumonia, Aspiration / diagnosis*, etiology*, prevention & control Pressure Reagent Strips |
| Chemical | |
Reg. No./Substance:
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0/Reagent Strips |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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