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Table 1 Patients clinical and electrophysiological parameters for both groups

From: Intracardiac echocardiography versus fluoroscopy for endovascular and endocardial catheter navigation during cryo-ablation of the slow pathway in AVNRT patients

  Zero-fluoroscopy group Fluoroscopy group p Value
Patients, n 22 25  
Mean age, years 54.1 ± 11 59.8 ± 12 < 0.05
Female, % (n) 72.7 (16) 68.0 (17) n.s.
Fluoroscopy time in min. 0 11.2 ± 9.0 < 0.05
Radiation dose in Gycm2 0 20.3 ± 16.2 < 0.05
AVNRT type, % (n)
 slow/fast 86.4 (19) 88.0 (22) n.s.
 slow/slow 9.1 (2) 0
 fast/slow 4.5 (1) 3
Orciprenaline needed for induction, % (n) 54.5 (12) 52.0 (13) n.s.
AVNRT cycle length, ms 357 ± 55 349 ± 62 n.s.
PQ interval baseline, ms 153 ± 21 150 ± 19 n.s.
PQ interval post-abl., ms 152 ± 22 151 ± 20 n.s.
Antegrade Wenckebach baseline, ms 328 ± 36 324 ± 42 n.s.
Antegrade Wenckebach post-abl., ms 314 ± 38 326 ± 40 n.s.
DAVNPa at baseline, % (n) 90.1 (20) 92.0 (23) n.s.
DAVNP post-ablation, % (n) 45.5 (10) 44.0 (11) n.s.
  1. aDAVNP dual atrio-ventricular node physiology (= AH or VA jump of ≥50 ms)