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 7 sources, which was discussed by the committee. The evidence included approximately 240 people from an interim analysis of 1 prospective single-arm trial, 1 prospective single-arm trial, 1 prospective single-arm pilot study and 5 retrospective case series. It is presented in the summary of key evidence section in the interventional procedures overview.