| In cadavers, directly measured mucosal pressures are similar for the Unique and the Soft Seal laryngeal mask airway devices. | |
| | |
MedLine Citation:
|
PMID: 15470175 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
PURPOSE: We compare the Soft Seal and Unique single-use, plastic laryngeal mask airway devices with respect to intracuff pressure, directly measured mucosal pressure and in vitro elastance. METHODS: Ten fresh male cadavers were studied. Microchip pressure sensors were attached to the following locations: A) the anterior middle part of the cuff side; B) the posterior tip of the cuff; C) the anterior base of the cuff; D) the posterior middle part of the cuff side; E) the backplate; and F) the posterior tube. The size 5 Unique and size 5 Soft Seal were inserted in random order using laryngoscope-guidance. Intracuff pressure and mucosal pressure were documented at 0 to 40 mL cuff volume in 10 mL increments. In vitro elastance was determined between 20 to 40 mL cuff volume. RESULTS: For both devices, mucosal pressure increased with cuff volume at most locations. Intracuff pressures and in vitro elastance (5.2 +/- 0.7 cm H(2)O/mL vs 3.8 +/- 0.4 cm H(2)O/mL, P < 0.0001) were higher for the Unique than the Soft Seal (P < 0.0001), but there were no differences in mucosal pressures at any location or cuff volume. CONCLUSION: Intracuff pressures and in vitro elastance are higher for the Unique than the Soft Seal, but mucosal pressures are similar suggesting that the airway morbidity will be similar. |
| | |
Authors:
|
Christian Keller; Joseph Brimacombe; Bernhard Moriggl; Philipp Lirk; Achim von Goedecke |
Related Documents
:
|
8128885 - A ventilation capacity test for the eustachian tube using a soundproof pressure chamber. 21689075 - Improved ventilation-perfusion matching with increasing abdominal pressure during co(2)... 10657425 - Assessment of the thigh cuff technique for measurement of dynamic cerebral autoregulation. 11517035 - Automatic tube compensation. 2712105 - Relationship between fetal heart rate and umbilical blood flow velocity in term human f... 15080855 - Sr 48692, a specific neurotensin receptor antagonist, has no effect on oesophageal moti... |
Publication Detail:
|
Type: Comparative Study; Evaluation Studies; In Vitro; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Canadian journal of anaesthesia = Journal canadien d'anesthésie Volume: 51 ISSN: 0832-610X ISO Abbreviation: Can J Anaesth Publication Date: 2004 Oct |
Date Detail:
|
Created Date: 2004-10-07 Completed Date: 2005-03-03 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 8701709 Medline TA: Can J Anaesth Country: Canada |
Other Details:
|
Languages: eng Pagination: 834-7 Citation Subset: IM |
Affiliation:
|
Department of Anaesthesia and Intensive Care, Cairns Base Hospital, The Esplanade, Cairns 4870, Australia. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Aged Aged, 80 and over Cadaver Chi-Square Distribution Elasticity Equipment Design Humans Intubation, Intratracheal / instrumentation* Laryngeal Masks / standards* Male Middle Aged Pressure |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Decreased heart rate and blood pressure in a recent cardiac transplant patient after spinal anesthes...
Next Document: Total airway obstruction during local anesthesia in a non-sedated patient with a compromised airway.