Perioperative patient-controlled regional analgesia versus patient-controlled intravenous analgesia for patients with critical limb ischaemia: a study protocol for a randomised controlled trial

Abstract

IntroductionBoth regional analgesia and intravenous analgesia are frequently used perioperatively for patients with critical limb ischaemia (CLI). Nevertheless, the comparison of perioperative effect of regional and intravenous analgesia has not...