Document Detail


Clinical significance of pacemaker-detected atrial high-rate episodes.
MedLine Citation:
PMID:  18281829     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE OF REVIEW: Pacemakers currently being implanted offer several advanced diagnostic features. Among these is the ability to store counters and intracardiac electrograms of individual atrial high-rate episodes, which are a surrogate of atrial fibrillation. As the majority of these episodes are brief and asymptomatic, their clinical significance remains to be determined. The purpose of this review is to provide a better understanding of the clinical significance of pacemaker-detected atrial high-rate episodes. RECENT FINDINGS: Follow-up after dual-chamber pacemaker implantation demonstrates that nearly 30% of patients without a known history of atrial fibrillation develop an atrial high-rate episode lasting 5 min or more. Patients experiencing such an episode are at a twofold increased risk of stroke and death. An important risk factor for developing an atrial high-rate episode is a high burden of right ventricular pacing, suggesting that ventricular pacing should be minimized whenever possible. SUMMARY: Atrial high-rate episodes are frequently observed in patients after dual-chamber pacemaker implantation and can be associated with adverse outcomes. Ongoing studies seek to determine whether the overall burden of these episodes correlates with the risk of thromboembolism, especially in patients without a history of atrial fibrillation, which would help guide decision-making regarding the initiation of anticoagulation.
Authors:
Anisha Mandava; Suneet Mittal
Related Documents :
9436779 - Three-dimensional distribution of st-t wave alternans during acute ischemia.
872319 - Digitalis in the pre-excitation syndrome. analysis during atrial fibrillation.
11471769 - Evidence-based treatment of patients with ischemic cerebrovascular disease.
7882609 - Should every patient with atrial fibrillation have the rhythm converted to sinus rhythm?
10977939 - Peculiarities of ischemic cardiac arrhythmias in cats against the background of stimula...
14609309 - Oral anticoagulation for ecg tremor artefact simulating atrial fibrillation.
20636319 - Ventricular tachycardia complicating head-up tilt test: the role of coronary artery spasm.
8287879 - Regional uptake of iodine-125-metaiodobenzylguanidine in the rat heart.
19804259 - Natriuretic peptides: diagnostic tools and predictors of heart failure outcome.
Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Current opinion in cardiology     Volume:  23     ISSN:  0268-4705     ISO Abbreviation:  Curr. Opin. Cardiol.     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2008-02-18     Completed Date:  2008-04-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8608087     Medline TA:  Curr Opin Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  60-4     Citation Subset:  IM    
Affiliation:
Al-Sabah Arrhythmia Institute and Division of Cardiology, The St Luke's-Roosevelt Hospital Center, Columbia University College of Physicians and Surgeons, New York, New York, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Atrial Fibrillation / diagnosis*
Early Diagnosis
Humans
Pacemaker, Artificial*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  The role of autonomic denervation during catheter ablation of atrial fibrillation.
Next Document:  How to avoid inappropriate therapy.