Linked Life Data

1279582

Source:http://linkedlifedata.com/resource/pubmed/id/1279582

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11 Pt 2
pubmed:dateCreated
1992-12-16
pubmed:abstractText
The purpose of the study was to compare the stimulation characteristics of two modern active fixation leads (Ela 583F, vitreous carbon tip [ELA] and Intermedics 82-0008-1601, iridium oxide tip [IROX]) with a standard lead (Osypka KY 67 VC, carbon-covered elgiloy tip [OSY]). In three groups of ten patients each, minimum charge threshold delta Qmin and polarization properties were determined via charge telemetry of the pacemaker (Intermedics Cosmos II and Relay) 0, 2, 5, 10, 28, 90, and 180 days after implant (dai). The polarization parameters global capacitance Cg, global resistance Rg, polarization voltage U(p), and a time constant t* (t* = Cg.Rg) were obtained by nonlinear regression. U(p) was always significantly (sig) lower in ELA and IROX (0.04-0.10 V) compared to OSY (0.54-0.76 V). Rg was sig lower in ELA (330-437 omega) compared to OSY and IROX (414-588 omega) from 0 to 28 dai. From 2 to 10 dai, Cg was sig higher in ELA and IROX (3.8-4.2 microF) compared to OSY (3.3-3.4 microF). In the three groups, delta Qmin reached a comparable maximum (1-1.2 microC) at 5 dai. Therefore, vitreous carbon and iridium oxide atrial fixation leads exhibit low chronic polarization effects compared to a standard elgiloy lead, but do not show a sig reduction in charge threshold.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0147-8389
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1971-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Threshold and polarization properties of modern active fixation atrial leads.
pubmed:affiliation
Innere Medizin III, Universitätskliniken des Saarlandes, Homburg/Saar, Germany.
pubmed:publicationType
Journal Article, Comparative Study