Document Detail

Intragastric pressure and its relevance to protective cricoid force.
MedLine Citation:
PMID:  12969044     Owner:  NLM     Status:  MEDLINE    
Cricoid pressure is frequently used to protect the anaesthetised and paralysed patient from passive regurgitation. Although intragastric pressure (Pga) drives regurgitation, its relevance in the setting of protective cricoid force has been largely ignored. We sought to define the likely range of Pga encountered in the population at risk. We studied 100 consecutive patients presenting for surgery requiring mechanical ventilation. We measured respiratory swings in Pga during mechanical ventilation in the paralysed state following rapid sequence induction (n = 24) and routine induction of anaesthesia (n = 76). Pga (mmHg) in the whole group recorded at end-inspiration (Pga-In) and end-expiration (Pga-Ex) was [mean (SD)]: Pga-In 6.48 (2.60) mmHg and Pga-Ex 3.23 (2.24) mmHg. We found no correlation between Pga and body mass index (r2 = 0.018). These findings have implications for the level of cricoid force required to protect a patient during the induction of anaesthesia.
N Haslam; A Syndercombe; C R Zimmer; L Edmondson; J E Duggan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Anaesthesia     Volume:  58     ISSN:  0003-2409     ISO Abbreviation:  Anaesthesia     Publication Date:  2003 Oct 
Date Detail:
Created Date:  2003-09-12     Completed Date:  2003-10-23     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0370524     Medline TA:  Anaesthesia     Country:  England    
Other Details:
Languages:  eng     Pagination:  1012-5     Citation Subset:  AIM; IM    
Department of Anaesthetics, Wansbeck General Hospital, Woodhorn Lane, Ashington NE63 9JJ, UK.
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MeSH Terms
Body Mass Index
Cricoid Cartilage*
Gastroesophageal Reflux / prevention & control*
Intraoperative Care / methods
Middle Aged
Neuromuscular Blockade
Postoperative Complications / prevention & control
Respiration, Artificial
Stomach / physiology*
Transducers, Pressure
Comment In:
Anaesthesia. 2004 Jan;59(1):91; author reply 91-2   [PMID:  14687108 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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