Document Detail

Radiofrequency catheter ablation guided by noncontact mapping of ventricular tachycardia originating from an idiopathic left ventricular aneurysm.
MedLine Citation:
PMID:  17605094     Owner:  NLM     Status:  MEDLINE    
Idiopathic left ventricular aneurysm and diverticulum is known to be an arrhythmogenic substrate associated to ventricular tachyarrhythmias, generally based on a reentry mechanism. A case of a young woman affected by a monomorphic ventricular tachycardia, refractory to medical treatment, originating from an aneurysm of the membranous interventricular septum is reported. The left ventricular aneurysm was well characterized by multislice computed tomography and left ventricular angiography. Because of the nonsustained and poorly tolerated nature of the target arrhythmia, a noncontact mapping system was used to guide radiofrequency catheter ablation, allowing the elaboration of a three-dimensional activation map of the left ventricle on the basis of a ventricular tachycardia single beat. The procedure was acutely successful, and the patient remained free of ventricular tachycardia recurrences without antiarrhythmic drugs during a subsequent 6-month follow-up period. This is the first report of a successful radiofrequency catheter ablation guided by noncontact mapping system of a ventricular tachycardia originating from an idiopathic left ventricular aneurysm. This nonfluoroscopic mapping method allows a reliable reconstruction of the spatial relationships between the left ventricular main cavity and the aneurysm and can be safely and effectively used to map the ventricular tachycardia and guide the ablation procedure, particularly when conventional mapping is not indicated or not effective because of nonsustained or not-tolerated characters of ventricular tachycardia.
Matteo Santamaria; Manuela Cireddu; Stefania Riva; Nicola Trevisi; Paolo Della Bella
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Publication Detail:
Type:  Case Reports; Journal Article     Date:  2007-06-29
Journal Detail:
Title:  Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing     Volume:  19     ISSN:  1383-875X     ISO Abbreviation:  J Interv Card Electrophysiol     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-07-26     Completed Date:  2007-11-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9708966     Medline TA:  J Interv Card Electrophysiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  49-53     Citation Subset:  IM    
Cardiovascular Department, Catholic University of the Sacred Heart, Largo A. Gemelli 1, 86100 Campobasso, Italy.
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MeSH Terms
Catheter Ablation*
Electrophysiologic Techniques, Cardiac
Heart Aneurysm / complications,  physiopathology,  surgery*
Heart Catheterization
Tachycardia, Ventricular / etiology,  physiopathology,  surgery*

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