Document Detail


Left Septal Atrial Tachycardias: Electrocardiographic and Electrophysiologic Characterization of a Paraseptal Focus.
MedLine Citation:
PMID:  23252694     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Left Septal Atrial Tachycardias. Objective: The objective was to characterize the electrocardiographic and electrophysiological features of focal atrial tachycardia (FAT) originating from the left septum (LS). Background: FAT is recognized to occur at predefined anatomic locations rather than randomly throughout the atria. We describe the ECG and EP features of ATs originating from the LS as an important site for apparent perinodal tachycardias. Methods: Nine patients presenting with LS FAT from a consecutive series of 384 underwent EP/RFA for symptomatic FAT. Results: The mean age was 56 ± 12 years; 7 female with symptoms for 36 ± 28 months. P wave morphology (PWM) was negative/positive in lead V1 and across the precordial leads and negative or negative/positive in inferior leads in all patients. Tachycardia was incessant in 6 out of 9 patients with a mean tachycardia cycle length 421 ± 56 milliseconds. His A was ahead of P wave in all patients (mean -15 ± 5 milliseconds) and earlier than CS proximal (mean 4 ± 9 milliseconds). Successful acute focal ablation achieved at a mean of 31 ± 12 milliseconds ahead of P wave with no recurrences at a mean follow-up of 30 ± 28 months. Conclusion: Although the left septum is an uncommon site for focal AT an awareness of this location for harboring foci is particularly important when mapping apparently right-sided septal tachycardias. (J Cardiovasc Electrophysiol, Vol. pp. 1-6).
Authors:
Michael C G Wong; Jonathan M Kalman; Liang-Han Ling; Caroline Medi; Andrew Teh; Geoffrey Lee; Saurabh Kumar; Joseph B Morton; Peter M Kistler
Related Documents :
24100184 - Endocardial late potentials during sinus rhythm define the re-entry circuit of ventricu...
23642904 - Unique preferential conduction within the isolated septal substrate in a patient with v...
24062184 - Pseudo-postpacing interval of diastolic potential after entrainment pacing of remote by...
23804774 - Late arrhythmias following fontan surgery.
21273554 - A peptide mimetic of the connexin43 carboxyl terminus reduces gap junction remodeling a...
22923754 - Increase in ventricular-arterial stiffness in patients with psoriatic arthritis.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-8
Journal Detail:
Title:  Journal of cardiovascular electrophysiology     Volume:  -     ISSN:  1540-8167     ISO Abbreviation:  J. Cardiovasc. Electrophysiol.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-12-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9010756     Medline TA:  J Cardiovasc Electrophysiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Wiley Periodicals, Inc.
Affiliation:
Department of Cardiology, Royal Melbourne Hospital, Melbourne, Australia Department of Medicine, University of Melbourne, Parkville, Victoria, Australia The Heart Centre, The Alfred Hospital, Melbourne, Australia The Baker IDI Research Institute, Melbourne, Australia.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

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


Previous Document:  SURVIVAL OF LARVAL AND CYST STAGES OF GORDIIDS (NEMATOMORPHA) AFTER EXPOSURE TO FREEZING.
Next Document:  Gene Cloning and Enzymatic Characterization of an Alkali-tolerant ?-Mannanase from Rhizomucor miehei...