| A higher than expected prevalence of AV nodal reentrant tachycardia in patients receiving implantable cardioverter-defibrillators. | |
| | |
MedLine Citation:
|
PMID: 21332561 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
BACKGROUND: Epidemiologic studies have indicated that the prevalence of paroxysmal supraventricular tachycardia (SVT) is approximately two to three of 1000 persons, of whom 50-60% have atrioventricular node reentrant tachycardia (AVNRT). Although SVT has been reported to account for a significant portion of inappropriate shocks in patients receiving implantable cardioverter-defibrillators (ICDs), the incidence of AVNRT is unknown. OBJECTIVE: To define the incidence of AVNRT in patients with ICDs. METHODS AND RESULTS: Of 426 patients followed with an ICD, 15 patients with AVNRT were identified (3.5%). AVNRT was noted preimplant in eight patients. One had remote AVNRT and had undergone radiofrequency (RF) ablation several years prior to ICD implantation. Three patients had known episodes and underwent RF ablation prior to ICD implant. Four had AVNRT induced at preimplant electrophysiology study and three had RF ablation prior to ICD implant. Seven patients had clinical episodes of AVNRT after ICD implant and six of seven received inappropriate ICD therapy for AVNRT. All seven patients underwent RF ablation for treatment of AVNRT. No patient who underwent RF ablation had further clinical episodes of SVT, and only one had further inappropriate ICD therapy for sinus tachycardia. CONCLUSION: The substantially higher prevalence of AVNRT in our followed ICD population (3.5%) compared to the general population may be due to detection bias or electroanatomic changes in the atrioventricular nodal area induced by the accompanying heart disease. In any case, further studies to evaluate the inducibility of AVNRT prior to ICD implant, its prognostic implications, and the role of RF ablation to prevent inappropriate shocks are warranted. |
| | |
Authors:
|
Jeffrey J Goldberger; Rod Passman; Rishi Arora; Alan H Kadish |
Publication Detail:
|
Type: Journal Article Date: 2011-02-17 |
Journal Detail:
|
Title: Pacing and clinical electrophysiology : PACE Volume: 34 ISSN: 1540-8159 ISO Abbreviation: Pacing Clin Electrophysiol Publication Date: 2011 May |
Date Detail:
|
Created Date: 2011-05-25 Completed Date: 2011-09-27 Revised Date: 2012-02-16 |
Medline Journal Info:
|
Nlm Unique ID: 7803944 Medline TA: Pacing Clin Electrophysiol Country: United States |
Other Details:
|
Languages: eng Pagination: 584-6 Citation Subset: IM |
Copyright Information:
|
©2011, The Authors. Journal compilation ©2011 Wiley Periodicals, Inc. |
Affiliation:
|
Bluhm Cardiovascular Center and the Division of Cardiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA. j-goldberger@northwestern.edu |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Aged Defibrillators, Implantable* Female Humans Incidence Male Middle Aged Prevalence Prognosis Risk Factors Tachycardia, Atrioventricular Nodal Reentry / epidemiology*, etiology, physiopathology |
| Grant Support | |
ID/Acronym/Agency:
|
R01 HL093490-04/HL/NHLBI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Analysis of K-ras, BRAF, and PIK3CA mutations in laterally-spreading tumors of the colorectum.
Next Document: Prevalence of Electrocardiographic Findings Suggestive of Sudden Cardiac Death Risk in 10,867 Appare...