Linked Life Data

2909570

Source:http://linkedlifedata.com/resource/pubmed/id/2909570

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-2-9
pubmed:abstractText
Previous studies of the effects of bundle branch block on ventriculoatrial (VA) intervals during orthodromic reciprocating tachycardia have focused on the timing of the atrial electrograms. However, left bundle branch block importantly affects the timing of initial ventricular activation, and this effect would also be expected to affect VA intervals during orthodromic reciprocating tachycardia. Presented here are three patients with a single right-sided accessory atrioventricular pathway exhibiting left bundle branch block during orthodromic reciprocating tachycardia. Each had shortening of the VA interval by 10 to 30 ms during left bundle branch block beats. This shortening was accompanied by a nearly equal increase in the HV interval, with the His bundle to atrial interval remaining constant. It is concluded that the timing of ventricular as well as atrial electrograms impacts on the VA intervals with left bundle branch block beats during orthodromic reciprocating tachycardia. With left bundle branch block, delay in initial left septal activation results in later onset of the QRS complex and, with right ventricular activation occurring normally, shortening of the VA interval occurs in patients with a right-sided pathway.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0735-1097
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
215-9
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Shortening of ventriculoatrial intervals with left bundle branch block during orthodromic reciprocating tachycardia in three patients with a right-sided accessory atrioventricular pathway.
pubmed:affiliation
Department of Medicine, Northwestern University Medical School, Evanston, Illinois.
pubmed:publicationType
Journal Article, Case Reports