Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1995-6-29
pubmed:abstractText
We describe and validate a new minimally invasive method for continuous measurement of tracheal diameter in anesthetized dogs. The method is based on measuring displacement of water into and out of a modified endotracheal tube cuff placed in the trachea. The system was calibrated to allow tracheal diameter to be calculated from known cuff volume. The resolution of the method in measuring changes in tracheal diameter is 0.1 mm over a range of approximately 10-25 mm. The apparatus was tested in five dogs by observing the response of the trachea to four stimuli previously shown to alter tracheal tone: stimulation of nasal mucosa, hyperinflation of the lungs, induction of hypocapnea, and infusion of atropine. The observed changes in tracheal diameter were generally consistent with those of previous studies. The direction and extent of changes in tracheal diameter in response to the test conditions were confirmed by fluoroscopy. We conclude that continuous measurement of volume changes in the cuff reflects corresponding changes in tracheal diameter.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
8750-7587
pubmed:author
pubmed:issnType
Print
pubmed:volume
78
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
388-93
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Dynamic measurement of tracheal diameter in dogs.
pubmed:affiliation
Department of Anaesthesia, Mount Sinai Hospital, Toronto, Ontario, Canada.
pubmed:publicationType
Journal Article