In this study the investigators would like to show that when patients undergo upper limb surgery under supraclavicular brachial plexus block, additional blocking of the Intercostobrachial Nerve Block (ICBN) does not affect the incidence or course of tourniquet pain.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Change between the 2 groups assessed by the incidence of tourniquet pain reported by the patient on a Descriptor Differential Scale of Pain Intensity (DDSI)
Timeframe: From intraoperative pre tourniquet insufflation to intraoperative release of tourniquet (up to 2 hours)