3.1
To inform the committee, NICE did a rapid review of the published literature on the efficacy and safety of this procedure. This comprised a comprehensive literature search and detailed review of the evidence from 8 sources, which was discussed by the committee. The evidence included 6 systematic reviews and meta‑analyses and 2 case series and is presented in table 2 of the interventional procedures overview. There is an overlap of studies included in systematic reviews and some of the studies did not specify the number of patients included. Other relevant literature is in the appendix of the overview.