3.4.1 Studies with the guidance of AI/LSI in ablation
There were 5 studies 15,20,23,28,29 with a total of 739 patients (366 in HPSD group, 373 in conventional group) that ablated with the guidance of AI or LSI. Whether with the guidance of AI or LSI, total procedure duration [MD -21.08 min (95% CI -24.63 to -17.54); P<0.001] and RF duration [MD -9.43 min (95% CI -12.21 to -6.65); P<0.001] (Supplementary material online, Figure S1, A, B) were shorter in the HPSD RFA group. Guided by AI/LSI, there was no apparent difference in freedom from atrial arrhythmia at one year (OR 1.41, 95% CI 0.88-2.25, P=0.15) and PVR (OR 1.55, 95% CI 0.40-5.98, P=0.52) (Supplementary material online, Figure S1, C, D) between the two groups. However, the HPSD RFA group demonstrated higher freedom from atrial arrhythmia at one year (OR 1.66, 95% CI 1.12-2.47, P=0.01) and lower PVR (OR 0.32, 95% CI 0.17-0.61, P=0.008) (Supplementary material online, Figure S1, C, D) without the guidance of AI/LSI.