vs. 341±177.7 sec, p=0.013 Total energy delivery: 24.3±3.1 vs. 28.7±4.5 watts, p=0.042 Kimman CA vs. 63 CA (n=30) RFA (n=33) AVNRT None stated Procedural N/A Median N/A CA useful for GP RFA success number of treatment of 2004 achieved in CA (119) 91% RFA and applications near the 93% CA lower than compact AV RFA node. (p<0.005) Questionable Both whether lack fluoroscopy of junctional and rhythm is procedural seen w/ CA times were makes this comparable approach safer than RFA, as authors remark. Zrenner CA vs. 200 CA (n=100) RFA (n=100) AVNRT N/A Cumulative Transient AV Procedural N/A Early pilot B RFA for incidence of block was success study (first 2004 AVNRT primary encountered in defined as prospective (120) endpoint (a 18% pts in the elimination randomized combination CA group and of slow investigation of procedural in 8% pathway or comparing failure, in RF group CA w/ RFA of permanent (p<0.04) of AVNRT AVNRT) complete AV showing CA block and 21 episodes of CA vs. RFA associated w/ AVNRT transient AV 97% vs. 98% a comparable recurrence) block occurring acute success higher in the during rate but a CA group, cryomapping (n higher p=0.03 = 4) or CA (n = recurrence 17) and 8 rate as episodes during compared w/ RF RFA in pts w/ applications. AVNRT. The duration of transient AV
vs. 341±177.7 sec, p=0.013 Total energy delivery: 24.3±3.1 vs. 28.7±4.5 watts, p=0.042 Kimman GP 2004 (119) CA vs. RFA 63 CA (n=30) RFA (n=33) AVNRT None stated Procedural success achieved in 91% RFA and 93% CA N/A Median number of CA applications lower than RFA (p<0.005) Both fluoroscopy and procedural times were comparable N/A CA useful for treatment of near the compact AV node. Questionable whether lack of junctional rhythm is seen w/ CA makes this approach safer than RFA, as authors remark. Zrenner B 2004 (120) CA vs. RFA for AVNRT 200 CA (n=100) RFA (n=100) AVNRT N/A Cumulative incidence of primary endpoint (a combination of procedural failure, permanent complete AV block and AVNRT recurrence) higher in the CA group, p=0.03 Transient AV block was encountered in 18% pts in the CA group and in 8% in RF group (p<0.04) 21 episodes of transient AV block occurring during cryomapping (n = 4) or CA (n = 17) and 8 episodes during RF applications. The duration of transient AV Procedural success defined as elimination of slow pathway or of AVNRT CA vs. RFA 97% vs. 98% N/A Early pilot study (first prospective randomized investigation comparing CA w/ RFA of AVNRT) showing CA associated w/ a comparable acute success rate but a higher recurrence rate as compared w/ RFA in pts w/ AVNRT.