High-definition mapping of the atria using a novel multipolar mapping catheter in patients with complex adult congenital heart disease

Abstract Background The Advisor™ HD Grid Mapping Catheter (Abbott Technologies, Minneapolis, MN) has been recently introduced. Although the clinical use of mapping catheter is well described in adults with no congenital heart disease, there limited data on feasibility using multipolar to create voltage and activation disease. purpose this study was evaluate safety technical during ablation atrial arrhythmias We included 6 consecutive disease suffering from our study. used perform mapping. Results Six patients diseases (d-TGA n = 1, Tricuspid atresia atrioventricular defect repair secundum septal double-inlet single-ventricle Tetralogy Fallot 1); majority (84%) male, mean age 35 ± 10 years series. duration fluoroscopy time were 789 433 502 355 s, respectively. radiation dose 7.52 9 milliGy/cm 2 . successfully for entire arrhythmia 5 out cases. During one procedure, could not be due suboptimal reach through baffle puncture. acute success rate 100% immediate complications. Conclusions a safe valuable adjunct accurately ACHD undergoing radiofrequency ablation. However, contact force-sensing should considered conjunction supplement acquisition challenging anatomy substrates.