title: [Comparison of cryoablation and radiofrequency ablation for treating atrioventricular nodal reentrant tachycardia].
abstract: OBJECTIVE
  To compare the efficacy and safety between cryoablation (Cryo) and radiofrequency (RF) ablation for treating patients with atrioventricular nodal reentrant tachycardia (AVNRT).
  
  
  METHODS
  Patients with AVNRT (n = 304) were divided into Cryo group (n = 67) and RF group (n = 237). The procedure success rate, complete slow pathway block rate, atrioventricular block rate and relapse rate were compared between two groups.
  
  
  RESULTS
  There was no statistically difference between 2 groups in the success rate (Cryo group 98.5% vs RF group 97.0%, P = 0.820), complete slow pathway block rate (Cryo group 98.5% vs RF group 91.6%, P = 0.088), atrioventricular block rate (Cryo group 0 vs RF group 2.5%, P = 0.413), relapse rate (Cryo group 0 vs RF group 1.7%, P = 0.643). But Cryo group had more advantage than RF group.
  
  
  CONCLUSIONS
  Efficacy and safety were comparable between cryoablation and radiofrequency ablation for treating patients with AVNRT.
authors.affiliation: Department of Cardiology, Zhejiang Provincial People's Hospital, Hangzhou 310014, China.
authors.forename: Ya-Hui
authors.initials: YH
authors.lastname: Ding
authors.forename: Bai-Ming
authors.initials: BM
authors.lastname: Qu
authors.forename: Xian-Da
authors.initials: XD
authors.lastname: Che
authors.forename: Jian-Wu
authors.initials: JW
authors.lastname: Yu
authors.forename: Chang-Hua
authors.initials: CH
authors.lastname: Wang
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D017115:Catheter Ablation / Q000379:methods*; D002648:Child; D003452:Cryosurgery / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000601:surgery*; D016896:Treatment Outcome; D055815:Young Adult