Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Cardiovasc Electrophysiol. 2009 Jun;20(6):637-42. doi: 10.1111/j.1540-8167.2008.01375.x. Epub 2009 Dec 15.

Acute success of cryoablation of left-sided accessory pathways: a single institution study.

Author information

  • 1Division of Pediatric Cardiology, Heart Center, Akron Children's Hospital, One Perkins Square, Akron, OH 44308, USA. gist.kat@gmail.com

Abstract

OBJECTIVE:

To compare the acute success and recurrence rate of cryoablation for left-sided accessory pathways (AP) with controls who underwent radiofrequency ablation (RFA) at the same institution.

BACKGROUND:

Catheter cryoablation of supraventricular tachycardia (SVT) is considered to be a safer alternative a compared with RFA. At our institution, cryoablation has become the primary interventional modality for all APs. The reported success rates of cryoablation for AP-mediated tachycardia have generally been less favorable than for RFA. However, the location of AP may influence cryoablation outcome. Furthermore, there are little data available on cryoablation of left-sided pathways.

METHODS:

A chart review was performed for all patients undergoing cryoablation between August 2005 and August 2007. Twenty-nine patients (mean age 13 years, range 6-18 years) were identified with SVT secondary to left-sided AP. The data collected included patient age, height, weight, date of procedure, mapping, ablation and procedure time, pathway location, success, and recurrence. Cryoablation was performed via a transseptal approach. Procedural success and recurrence rate were compared with our most recent 28 patients undergoing RFA ablation.

RESULTS:

Procedural success was achieved in 97% of patients in the cryoablation group, compared with 100% in the RFA control group. Recurrence rate in the cryoablation group was 1 of 24 (4.2%) patients compared with 4 of 28 (14%) patients in the RFA group over 12 months.

CONCLUSION:

Cryoablation can be safely and effectively used in the treatment of left-sided AP. Long-term outcomes remain to be seen.

Comment in

PMID:
19207763
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for Blackwell Publishing
    Loading ...
    Write to the Help Desk