Assessment of ablation catheter contact on valve annulus: Implications on accessory pathway ablation.

ABSTRACT: BACKGROUND:Catheter-tissue contact force is an important factor influencing lesion size and efficacy and thereby potential for arrhythmia recurrence following accessory pathway (AP) radiofrequency ablation. We aim to evaluate adequacy and perception of catheter contact on the tricuspid and mitral annuli. METHODS:Data were collected from 42 patients undergoing catheter ablation. Operators were blinded to contact force information and reported perceived contact (poor, moderate, or good) while positioning the catheter at four tricuspid annular sites (12, 9, 6 and 4 o'clock positions; abbreviated as TA12, TA9, TA6 and TA4) and three mitral annular sites (3, 5 and 7 o'clock positions; abbreviated as MA3, MA5 and MA7) through long vascular sheaths. RESULTS:The highest and lowest mean contact for

SUBMITTER: Choo WK 

PROVIDER: S-EPMC6531925 | biostudies-literature | 2019 May - Jun

REPOSITORIES: biostudies-literature