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Article: Acute results of transvenous cryoablation of supraventricular tachycardia (atrial fibrillation, atrial flutter, Wolff-Parkinson-White syndrome, atrioventricular nodal reentry tachycardia)

TitleAcute results of transvenous cryoablation of supraventricular tachycardia (atrial fibrillation, atrial flutter, Wolff-Parkinson-White syndrome, atrioventricular nodal reentry tachycardia)
Authors
Issue Date2002
PublisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=1045-3873
Citation
Journal Of Cardiovascular Electrophysiology, 2002, v. 13 n. 11, p. 1082-1089 How to Cite?
AbstractIntroduction: Radiofrequency (RF) catheter ablation currently is used for treatment of cardiac arrhythmias. Although the success rate is high for almost all supraventricular tachycardias (SVT), this technique has some drawbacks, especially when pulmonary veins (PV) are targeted for treatment of atrial fibrillation (AF). Additionally, new techniques for isolation of the PVs have the drawback that they can be used only for PV isolation and not for routine treatment of other SVTs. The aim of this study was to report on the safety and efficacy of a new cryoablation system for treatment of all SVTs. Methods and Results: Forty-nine patients with SVT (38 men; age 48 years, range 23-76) were enrolled in the study. Five patients were withdrawn from the study before they underwent cryoablation. The remaining 44 patients were treated with cryoablation (22 AF, 15 atrial flutter, 3 accessory pathway, 2 AV nodal reentrant tachycardia, 1 AV junction ablation for permanent AF, 1 atrial tachycardia). Cryoablation was performed with the CryoCor™ cryoablation system, which uses a precooling system and N2O as a refrigerant. The number of freezes applied varied according to the index arrhythmia treated. Successful isolation of PVs was performed in 20 of (96%) 21 AF patients and 53 of 55 veins. The overall acute success was 98% (43/44). Fifty-three PVs were isolated (2.5/patient). The success rate was 100% (23/23) for right-sided procedures. The average and nadir temperatures reached in right-sided and left-sided procedures were -77°C and -80°C and -75°C and -78°C, respectively. No acute PV stenosis was seen. Conclusion: This novel cryoablation system appears to be safe and can successfully treat different types of SVTs, including AF. Isolation of PVs is possible without producing stenosis. Despite the high blood flow in the right atrial isthmus and PVs, bidirectional conduction block can be achieved.
Persistent Identifierhttp://hdl.handle.net/10722/77770
ISSN
2015 Impact Factor: 3.097
2015 SCImago Journal Rankings: 1.863
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorRodriguez, LMen_HK
dc.contributor.authorGeller, JCen_HK
dc.contributor.authorTse, HFen_HK
dc.contributor.authorTimmermans, Cen_HK
dc.contributor.authorReek, Sen_HK
dc.contributor.authorLee, KLFen_HK
dc.contributor.authorAyers, GMen_HK
dc.contributor.authorLau, CPen_HK
dc.contributor.authorKlein, HUen_HK
dc.contributor.authorCrijns, HJGMen_HK
dc.date.accessioned2010-09-06T07:35:32Z-
dc.date.available2010-09-06T07:35:32Z-
dc.date.issued2002en_HK
dc.identifier.citationJournal Of Cardiovascular Electrophysiology, 2002, v. 13 n. 11, p. 1082-1089en_HK
dc.identifier.issn1045-3873en_HK
dc.identifier.urihttp://hdl.handle.net/10722/77770-
dc.description.abstractIntroduction: Radiofrequency (RF) catheter ablation currently is used for treatment of cardiac arrhythmias. Although the success rate is high for almost all supraventricular tachycardias (SVT), this technique has some drawbacks, especially when pulmonary veins (PV) are targeted for treatment of atrial fibrillation (AF). Additionally, new techniques for isolation of the PVs have the drawback that they can be used only for PV isolation and not for routine treatment of other SVTs. The aim of this study was to report on the safety and efficacy of a new cryoablation system for treatment of all SVTs. Methods and Results: Forty-nine patients with SVT (38 men; age 48 years, range 23-76) were enrolled in the study. Five patients were withdrawn from the study before they underwent cryoablation. The remaining 44 patients were treated with cryoablation (22 AF, 15 atrial flutter, 3 accessory pathway, 2 AV nodal reentrant tachycardia, 1 AV junction ablation for permanent AF, 1 atrial tachycardia). Cryoablation was performed with the CryoCor™ cryoablation system, which uses a precooling system and N2O as a refrigerant. The number of freezes applied varied according to the index arrhythmia treated. Successful isolation of PVs was performed in 20 of (96%) 21 AF patients and 53 of 55 veins. The overall acute success was 98% (43/44). Fifty-three PVs were isolated (2.5/patient). The success rate was 100% (23/23) for right-sided procedures. The average and nadir temperatures reached in right-sided and left-sided procedures were -77°C and -80°C and -75°C and -78°C, respectively. No acute PV stenosis was seen. Conclusion: This novel cryoablation system appears to be safe and can successfully treat different types of SVTs, including AF. Isolation of PVs is possible without producing stenosis. Despite the high blood flow in the right atrial isthmus and PVs, bidirectional conduction block can be achieved.en_HK
dc.languageengen_HK
dc.publisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=1045-3873en_HK
dc.relation.ispartofJournal of Cardiovascular Electrophysiologyen_HK
dc.subject.meshAdulten_HK
dc.subject.meshAgeden_HK
dc.subject.meshAtrial Fibrillation - surgeryen_HK
dc.subject.meshAtrial Flutter - surgeryen_HK
dc.subject.meshCryosurgery - adverse effectsen_HK
dc.subject.meshFemaleen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMaleen_HK
dc.subject.meshMiddle Ageden_HK
dc.subject.meshPhlebographyen_HK
dc.subject.meshProspective Studiesen_HK
dc.subject.meshPulmonary Veins - radiographyen_HK
dc.subject.meshSafetyen_HK
dc.subject.meshTachycardia, Atrioventricular Nodal Reentry - surgeryen_HK
dc.subject.meshTachycardia, Supraventricular - surgeryen_HK
dc.subject.meshWolff-Parkinson-White Syndrome - surgeryen_HK
dc.titleAcute results of transvenous cryoablation of supraventricular tachycardia (atrial fibrillation, atrial flutter, Wolff-Parkinson-White syndrome, atrioventricular nodal reentry tachycardia)en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1045-3873&volume=13 &issue=11&spage=1082&epage=9&date=2002&atitle=Acute+Results+of+Transvenous+Cryoablation+of+Supraventricular+Tachycardia+(Atrial+Fibrillation,+Atrial+Flutter,+Wolff-Parkinson-White+Syndrome,+Atrioventricular+Nodal+Reentry+Tachycardia).en_HK
dc.identifier.emailTse, HF:hftse@hkucc.hku.hken_HK
dc.identifier.authorityTse, HF=rp00428en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1046/j.1540-8167.2002.01082.x-
dc.identifier.pmid12475096-
dc.identifier.scopuseid_2-s2.0-0036851389en_HK
dc.identifier.hkuros81906en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036851389&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume13en_HK
dc.identifier.issue11en_HK
dc.identifier.spage1082en_HK
dc.identifier.epage1089en_HK
dc.identifier.isiWOS:000179403600004-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridRodriguez, LM=7402239863en_HK
dc.identifier.scopusauthoridGeller, JC=7202179791en_HK
dc.identifier.scopusauthoridTse, HF=7006070805en_HK
dc.identifier.scopusauthoridTimmermans, C=7006153844en_HK
dc.identifier.scopusauthoridReek, S=7003347203en_HK
dc.identifier.scopusauthoridLee, KLF=7501505962en_HK
dc.identifier.scopusauthoridAyers, GM=7102015157en_HK
dc.identifier.scopusauthoridLau, CP=7401968501en_HK
dc.identifier.scopusauthoridKlein, HU=26642898000en_HK
dc.identifier.scopusauthoridCrijns, HJGM=36079203000en_HK

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