Study limitations
Our study had several limitations. First, this study was a
single-center, retrospective analysis, and the study sample size was
relatively small. A larger volume study might be needed to verify the
present results. Second, the first generation VGLA
(HeartLight, CardioFocus, MA, USA)
was used in present study. The third generation VGLA (HeartLight X3,
CardioFocus, MA, USA), which enables a single-sweep PVI with very short
procedure times23), might be more effective for the LCPV
isolation.