Linked Life Data

20102921

Source:http://linkedlifedata.com/resource/pubmed/id/20102921

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-1-27
pubmed:abstractText
In patients with pre-excitation, a short PR interval and a delta wave are not always clearly seen, particularly if the pre-excitation is mild. Absent septal Q waves have been used as additional evidence suggestive of pre-excitation. The purpose of the present study was to determine the incidence of normalization of septal Q waves after successful ablation of a manifest accessory pathway in pediatric patients with normal hearts. We performed a retrospective review of electrocardiograms (ECGs) obtained before and after successful catheter ablation of a single manifest accessory pathway in patients <21 years old (84 pairs of ECGs). The ECGs obtained in patients before ablation for atrioventricular nodal re-entry tachycardia were used as controls (n = 62). The absence of Q waves in the lateral leads (V(5) to V(7)) and inferior leads (II, III, aVF) were determined. p Values <0.05 were considered significant. Before the ablation, 72 ECGs (85%) demonstrated absent Q waves in the lateral leads, and only 17 (20%) did not show evidence of Q waves after successful ablation of the accessory pathway (p <0.001). On the inferior leads, 37 ECGs (44%) showed no evidence of Q waves before ablation compared to 24 (29%) after ablation (p <0.05). The findings on the postablation ECG were not statistically different from the findings on the ECGs of the control patients. In conclusion, Q waves in the lateral and inferior leads are often absent in patients with manifest pre-excitation. Absent septal Q waves in the lateral and inferior leads frequently normalize after successful ablation of an accessory pathway.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1879-1913
pubmed:author
pubmed:copyrightInfo
Copyright 2010 Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
105
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
214-6
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Uncovering the septal Q wave and other electrocardiographic changes in pediatric patients with pre-excitation before and after ablation.
pubmed:affiliation
Pediatric Arrhythmia Service, Department of Pediatrics, New York-Presbyterian Morgan Stanley Children's Hospital, Columbia University Medical Center, New York, New York, USA. ll202@columbia.edu
pubmed:publicationType
Journal Article