3.3. Surgical techniques
The most important point for surgical techniques is laser setting. We
found that 10 studies reported the relative information of laser
setting, while the other 5 did not. Additionally, laser settings from
each work were inconsistent with each other. In the CO2group, the laser setting on the energy was ranged from 2-30W reported by
6 works, while the frequency of laser was between 100 and 300Hz
presented by two studies. As for KTP laser, the energy setting was
within the scope of 6-8W, which is more accurate than that of
CO2 laser between different literature. Meanwhile, the
frequency of KTP laser was 2 Hz reported by two studies. Furthermore,
most CO2 laser excision surgeries for LP were conducted
in the operation room under general anesthesia, while the majority of
KTP laser excision surgeries were performed under local anesthesia.