Methods
We identified patients who underwent AVN ablation for different
indications at our institution. Data related to patients and procedures
were collected through retrospective chart review. The radiofrequency
catheters used were: plain non irrigated, externally irrigated (EI), and
contact force sensing with 10-20 gm of force in two different settings:
low power long duration (LPLD) (30W, 45°C, and 60 sec) and high-power
short duration (HPSD) (50W, 43°C, and 12 sec). We compared the different
catheters in terms of success rate using logistic regression and lesion
time using linear regression.