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Use of Asymmetric Bidirectional Catheters with Different Curvature Radius for Catheter Ablation of Cardiac Arrhythmias
Author(s) -
MANTZIARI LILIAN,
SUMANHORDUNA IRINA,
GUJIC MARKO,
JONES DAVID G.,
WONG TOM,
MARKIDES VIAS,
FORAN JOHN P.,
ERNST SABINE
Publication year - 2013
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/pace.12113
Subject(s) - medicine , tachycardia , catheter ablation , ablation , fluoroscopy , atrial fibrillation , supraventricular tachycardia , cardiology , catheter , atrial tachycardia , anesthesia , surgery
Background The impact of recently introduced asymmetric bidirectional ablation catheters on procedural parameters and acute success rates of ablation procedures is unknown. Methods We retrospectively analyzed data regarding ablations using a novel bidirectional catheter in a tertiary cardiac center and compared these in 1:5 ratio with a control group of procedures matched for age, gender, operator, and ablation type. Results A total of 50 cases and 250 controls of median age 60 (50–68) years were studied. Structural heart disease was equally prevalent in both groups (39%) while history of previous ablations was more common in the study arm (54% vs 30%, P = 0.001). Most of the ablation cases were for atrial fibrillation (46%), followed by atrial tachycardia (28%), supraventricular tachycardia (12%), and ventricular tachycardia (14%). Median procedure duration was 128 (52–147) minutes with the bidirectional, versus 143 (105–200) minutes with the conventional catheter (P = 0.232), and median fluoroscopy time was 17 (10–34) minutes versus 23 (12–39) minutes, respectively (P = 0.988). There was a trend toward a lower procedure duration for the atrial tachycardia ablations, 89 (52–147) minutes versus 130 (100–210) minutes, P = 0.064. The procedure was successfully completed in 96% of the bidirectional versus 84% of the control cases (P = 0.151). A negative correlation was observed between the relative fluoroscopy duration and the case number (r = –0.312, P = 0.028), reflecting the learning curve for the bidirectional catheter. Conclusions The introduction of the bidirectional catheter resulted in no prolongation of procedure parameters and similar success rates, while there was a trend toward a lower procedure duration for atrial tachycardia ablations.