3.1
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 14 sources, which was discussed by the committee. The evidence included 1 systematic review, 2 randomised controlled trials (1 of which is also included in the systematic review), 1 non-randomised comparative study, 6 case series (4 of which are also included in the systematic review) and 3 case reports. In addition, there are data from a survey of 535 sites with 113,174 patients. The evidence is presented in the summary of key evidence section in the interventional procedures overview. Other relevant literature is in the appendix of the overview.