Linked Life Data

6848235

Source:http://linkedlifedata.com/resource/pubmed/id/6848235

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1983-2-25
pubmed:abstractText
The syndrome of enhanced atrioventricular nodal (AVN) conduction has been defined arbitrarily by: AH interval during normal sinus rhythm (AH-NSR) less than or equal to 60 msec; shortest right atrial pacing cycle length (PCL) maintaining 1:1 AVN conduction (shortest PCL 1:1) less than or equal to 300 msec; and at the shortest PCL 1:1, an increase in the AH interval from AH-NSR (delta AH) less than or equal to 100 msec. We examined the relationship between AH-NSR, shortest PCL 1:1, and delta AH in 160 consecutively studied patients who did not have accessory AV pathways or second-degree AV block to determine whether a distinct subgroup of patients with unusually rapid AVN conduction properties could be identified. The frequency distribution of each of the variables was unimodal and continuous. Cluster analysis, combining the three variables, failed to reveal a distinct subgroup at the lower end of the spectrum. Sixty-six patients (41%) had AH-NSR less than or equal to 60 msec, 36 (23%) shortest PCL 1:1 less than or equal to 300 msec, 76 (48%) delta AH less than or equal to 100 msec, and 17 (11%) all three criteria. The shape of the AH vs atrial PCL curve was independent of shortest PCL 1:1. Neither delta AH nor the terminal slope of the curve for AH vs atrial PCL (measured over the 20-40 msec before Wenckebach block) was related to AH-NSR or shortest PCL 1:1. We conclude that a subgroup cannot be identified by AH-NSR, shortest PCL 1:1, and delta AH, and that enhanced AVN conduction as previously defined represents simply one end of the continuous spectrum of normal AVN physiology.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0009-7322
pubmed:author
pubmed:issnType
Print
pubmed:volume
67
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
441-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Reevaluation of enhanced atrioventricular nodal conduction: evidence to suggest a continuum of normal atrioventricular nodal physiology.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't