“…Nine studies involved endoscopic procedures, 11,16,17,29,47,55,56,81,83 whereas the remaining 7 studies involved an incision which breached the skin barrier. 1,5,41,42,46,72,78 Patients received local anesthesia (LA) in 8 studies 5,11,29,41,46,47,56,83 and regional anesthesia (RA) in 4 studies. 1,42,72,78 Patients in the remaining studies did not receive locoregional anesthesia (LRA), instead they were offered analgesia or conscious sedation.…”