Diseases of the colon and rectum
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Randomized Controlled Trial Multicenter Study
Bupivacaine extended-release liposome injection for prolonged postsurgical analgesia in patients undergoing hemorrhoidectomy: a multicenter, randomized, double-blind, placebo-controlled trial.
Bupivacaine extended-release liposome injection is a novel formulation of bupivacaine designed to achieve long-acting postoperative analgesia. ⋯ Bupivacaine extended-release demonstrated a statistically significant reduction in pain through 72 hours, decreased opioid requirements, delayed time to first opioid use, and improved patient satisfaction compared with placebo after hemorrhoidectomy.