Comparison of clinical, electrophysiologic, and ablation characteristics in nine patients with (group A) and 68 patients without (group B) AV block in the phase I study
|
Group A n=9 |
Group B n=68 | p Value | |
| Mean (SD) age (years) | 59 (15) | 55 (16) | 0.53 |
| Sex (male/female) | 2/7 | 24/44 | 1.69 |
| Mean (SD) AVNRT cycle length (ms) | 355 (66) | 373 (41) | 0.25 |
| AVNRT forms | 0.40 | ||
| S-F | 9 | 62 | |
| F-S | 0 | 4 | |
| S-F and F-S | 0 | 2 | |
| RFCA site | 0.10 | ||
| M1 | 2 | 3 | |
| M2 | 3 | 12 | |
| P1 | 3 | 43 | |
| P2 | 1 | 10 | |
| Mean (SD) number of RFCA applications | 3.5 (1.8) | 3.2 (2.0) | 0.67 |
| RFCA time (hours) | 2.2 (1.0) | 2.0 (1.5) | 0.70 |
AVNRT, atrioventricular nodal re-entrant tachycardia; S-F, F-S, slow-fast, fast-slow form of AVNRT, in patient number; RFCA, radiofrequency catheter ablation; M1, M2, P1, P2, midseptal and posteroseptal sites of Koch's triangle (see fig 1); RFCA time, total procedure duration.