Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1993-10-1
pubmed:abstractText
The effects of thoracic epidural anesthesia on the performance of the parasternal intercostal muscles were investigated by measuring electromyographic activity and length changes of the parasternals (EMG activities and length, respectively, of the parasternals) in seven pentobarbital anesthetized, spontaneously breathing dogs. Epidural injection of 0.1 mL/kg of 2% lidocaine decreased tidal volume and minute ventilation during unstimulated breathing. These changes were accompanied by complete abolishment of EMG activities of the parasternals and passive elongation of the parasternals during inspiration. At equivalent end-tidal PCO2 values (70 and 80 mm Hg) during CO2 rebreathing, tidal volume and minute ventilation were lower after epidural block compared to the corresponding values before the block. Thoracic epidural anesthesia impaired contraction of the parasternals and conceivably other respiratory muscles in the rib cage as well and could induce a distortion of the rib cage. The authors conclude that respiratory muscles in the rib cage contribute considerably to the maintenance of ventilation in anesthetized dogs.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0003-2999
pubmed:author
pubmed:issnType
Print
pubmed:volume
77
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
494-500
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Thoracic epidural anesthesia causes rib cage distortion in anesthetized, spontaneously breathing dogs.
pubmed:affiliation
Department of Anesthesiology, Chiba University School of Medicine, Japan.
pubmed:publicationType
Journal Article