| Radiofrequency catheter atrioventricular node ablation in patients with permanent cardiac pacing systems. | |
| | |
MedLine Citation:
|
PMID: 7511234 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Following successful RF ablation of the atrioventricular node (AVN), temporary pacing is necessary prior to insertion of a permanent pacemaker. The risks and inconvenience of temporary pacing could be avoided if a permanent pacemaker is already in place. This study reports the feasibility of RF ablation of the AVN in 27 patients (age 55 +/- 17 years, 15 males) with hypertrophic cardiomyopathy and pacemakers. Indications for AVN ablation were drug refractory atrial fibrillation in 24 patients, and rapid AVN conduction preventing septal pre-excitation by DDD pacemaker, inserted for relief of left ventricular outflow obstruction, in three cases. Sixteen patients had DDD devices and 11 patients had VVI devices. During RF ablation, each pacemaker was programmed to VVI at 50 beats/min. The ablation catheter was manipulated with fluoroscopic control to avoid close contact with or disturbance of the pacing leads. In 16 patients, RF ablation was performed immediately following pacemaker implantation but in the remaining patients, the AVN was ablated 6-32 months after pacemaker implantation. The power applied was 25-50 watts for a duration of 15-60 seconds. AV block was achieved in all cases but required 34 +/- 36 applications for 16.5 +/- 17.8 min/case. RF ablation consistently caused reversion to magnet rate in one patient and temporarily inhibited appropriate pacemaker discharge in another. However, no other pacemaker or lead malfunction was detected so that temporary pacing was not required in any case. At 6 +/- 3 months follow-up, all pacemakers were functioning normally without alteration in pacing parameters from baseline.(ABSTRACT TRUNCATED AT 250 WORDS) |
| | |
Authors:
|
A C Chang; D McAreavey; D Tripodi; L Fananapazir |
Related Documents
:
|
3370764 - Demonstration of a widely distributed atrial pacemaker complex in the human heart. 6160504 - Mechanical wear of pacemaker lead insulation. a cause of loss of pacing. 17462414 - Use of conventional dual chamber pacemakers with custom lead adapters to induce atrial ... 10072224 - A stepwise testing protocol for modern implantable cardioverter-defibrillator systems t... 11009474 - Protein washdown as a defense mechanism against myocardial edema. 7081014 - Noninvasive detection and localization of coronary stenoses in patients: comparison of ... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Pacing and clinical electrophysiology : PACE Volume: 17 ISSN: 0147-8389 ISO Abbreviation: Pacing Clin Electrophysiol Publication Date: 1994 Jan |
Date Detail:
|
Created Date: 1994-04-28 Completed Date: 1994-04-28 Revised Date: 2004-11-17 |
Medline Journal Info:
|
Nlm Unique ID: 7803944 Medline TA: Pacing Clin Electrophysiol Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 65-9 Citation Subset: IM |
Affiliation:
|
Cardiology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adolescent Adult Aged Aged, 80 and over Atrial Fibrillation / complications*, epidemiology, surgery Atrioventricular Node / surgery* Cardiac Pacing, Artificial* Cardiomyopathy, Hypertrophic / complications, epidemiology, therapy* Catheter Ablation* Female Follow-Up Studies Humans Male Middle Aged Prospective Studies |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Report of the NASPE Policy Conference training requirements for permanent pacemaker selection, impla...
Next Document: Loss of late potentials after radiofrequency catheter ablation of recurrent ventricular tachycardia ...