Linked Life Data

2589674

Source:http://linkedlifedata.com/resource/pubmed/id/2589674

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1990-1-2
pubmed:abstractText
The authors conducted a two-part study to evaluate the efficacy of 1 ml of air as a "test dose" for detection of intravenously located epidural catheters. In part 1, a Doppler fetal heart rate monitoring probe was placed over the precordium of 33 laboring patients in whom functioning epidural catheters were in place. Each patient received, more than 90 s apart, in random order: 10 ml of agitated saline (containing less than 0.5 ml of air microbubbles) via a peripheral vein; 2 ml of air via the epidural catheter; and a sham injection (i.e., nothing injected). In all 33 cases, a blinded observer identified Doppler changes 10-30 s following the injection of air (microbubbles) via peripheral vein. Doppler changes were never heard following epidural air injection (P less than 0.001 compared with iv air microbubble injection) or the sham injection (P less than 0.001 compared with iv air microbubble injection). In part 2, the authors listened for Doppler heart tone changes while injecting 1 ml of air via catheters that were accidentally inserted in the epidural veins of five other patients. Unequivocal Doppler changes compatible with intracardiac air always occurred within 3 s, and no signs or symptoms of air embolism developed. The results suggest that 1 ml of air may be a suitable indicator of iv epidural catheter location.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0003-3022
pubmed:author
pubmed:issnType
Print
pubmed:volume
71
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
848-51
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Air: an effective indicator of intravenously located epidural catheters.
pubmed:affiliation
Department of Anesthesiology, Thomas Jefferson University, Philadelphia, Pennsylvania.
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial