| Safety and efficacy of cryoablation of atrial tachycardia with high risk of ablation-related injuries. | |
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MedLine Citation:
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PMID: 19174374 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIMS: The purpose of this study was to evaluate the safety and efficacy of cryoablation as an alternative to radio frequency (RF) ablation in high-risk-located atrial tachycardia (AT). METHODS AND RESULTS: Between 2004 and 2007, 164 patients underwent catheter ablation due to AT at our institution. Twenty-six of these patients (22 women and 4 men), median age 58 years (range 14-76), were considered having high-risk-located AT and were treated by cryoablation. Seven patients had failed prior RF ablation due to high risk of complications. The AT foci distribution was: close to the AV node (n = 14), vicinity of the sinus node (n = 7), and crista terminalis adjacent to the phrenic nerve (n = 5). Cryomapping, using a 6 mm tip catheter, at -30 degrees C was performed before ablation with a goal temperature of -80 degrees C for 240 s. Acute success rate was achieved in 25/26 patients (96%). During a follow-up of 493 +/- 258 days, three patients had recurrences. Two of these underwent a second successful cryoablation procedure. Long-term success rate was 92%. Phrenic nerve palsy occurred in two patients with complete recovery after 1 day and 5 months, respectively. CONCLUSION: Cryoablation of high-risk-located AT foci is a safe and effective alternative to RF therapy. |
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Authors:
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Hamid Bastani; Per Insulander; Jonas Schwieler; Fariborz Tabrizi; Frieder Braunschweig; Göran Kennebäck; Nikola Drca; Bita Sadigh; Mats Jensen-Urstad |
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Publication Detail:
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Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't Date: 2009-01-26 |
Journal Detail:
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Title: Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology Volume: 11 ISSN: 1532-2092 ISO Abbreviation: Europace Publication Date: 2009 May |
Date Detail:
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Created Date: 2009-04-29 Completed Date: 2009-06-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100883649 Medline TA: Europace Country: England |
Other Details:
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Languages: eng Pagination: 625-9 Citation Subset: IM |
Affiliation:
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Department of Cardiology, Karolinska Institute, Karolinska University Hospital, S-141 86 Stockholm, Sweden. hamid.bastani@karolinska.se |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Atrioventricular Node / physiopathology* Cryosurgery / adverse effects*, methods* Female Follow-Up Studies Humans Male Middle Aged Phrenic Nerve / injuries* Risk Factors Sinoatrial Node / physiopathology* Tachycardia, Ectopic Atrial / physiopathology, surgery* Treatment Outcome Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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