Contact force analysis by steerable sheath
Baseline patient characteristics were similar in both sheath groups except for significantly higher BMI (p = 0.01) and females (p = 0.03) in the SureFlex group than Agilis (Table 1). A total of 1354 lesions were analyzed in the Agilis group and 1803 lesions in the SureFlex group. There was no significant difference in the mean CF between the Agilis sheath and SureFlex sheath at the overall procedure level, as well as around each PV (Table 2). However, CF variability was 13% lower with the SureFlex sheath over the entire procedure compared to Agilis sheath (p = 0.043; Figure 3A). Further analysis showed a trend of 13-14% lower CF variability in the left and right superior pulmonary veins with the SureFlex sheath than Agilis sheath (significant at the α = 0.1 level; Figure 3B).