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Τρίτη 11 Σεπτεμβρίου 2018

Intraperitoneal Local Anesthetic Instillation and Postoperative Infusion Improves Functional Recovery Following Colectomy: A Randomized Controlled Trial

imageBACKGROUND: Intraperitoneal local anesthetic is an analgesic technique for inclusion in the polypharmacy approach to postoperative pain management in enhanced recovery after surgery programs. Previously, augmentation of epidural analgesia with intraperitoneal local anesthetic was shown to improve functional postoperative recovery following colectomy. OBJECTIVE: This study determines whether intraperitoneal local anesthetic improves postoperative recovery in patients undergoing colectomy, in the absence of epidural analgesia, with standardized enhanced recovery after surgery perioperative care. DESIGN: This is a multisite, double-blinded, randomized, placebo-controlled trial (ClinicalTrials.gov Identifier NCT02449720). SETTINGS: This study was conducted at 3 hospital sites in South Australia. PATIENTS: Eighty-six adults undergoing colectomy were stratified by approach (35 open; 51 laparoscopic), then randomly assigned to intraperitoneal local anesthetic (n = 44) and control (n = 42) groups. INTERVENTIONS: Patients in the intraperitoneal local anesthetic group received an intraoperative intraperitoneal ropivacaine 100-mg bolus both pre- and postdissection and 20 mg/h continuous postoperative infusion for 48 hours. Patients in the control group received a normal saline equivalent. MAIN OUTCOME MEASURES: Functional postoperative recovery was assessed by using the surgical recovery scale for 45 days; postoperative pain was assessed by using a visual analog scale; and opioid consumption, use of rescue ketamine, recovery of bowel function, time to readiness for discharge, and perioperative complications were recorded. RESULTS: The intraperitoneal local anesthetic group reported improved surgical recovery scale scores at day 1 and 7, lower pain scores, required less rescue ketamine, and passed flatus earlier than the control group (p

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