Efficacy of preoperative transversus abdominis plane block for analgesia after kidney transplantation / 中华麻醉学杂志

ABSTRACT

Objective To evaluate the efficacy of preoperative transversus abdominis plane block (TAPB)for analgesia after kidney transplantation. Methods Forty American Society of Anesthesiologists physical status ⅡorⅢpatients, aged 18-64 yr, with body mass index of 18-24 kg∕m2, scheduled for e-lective kidney transplantation, were divided into 2 groups(n=20 each)using a random number tableTAPB group and routine analgesia control group(group C). After induction of anesthesia, ultrasound-guided TAPB was performed on the operated side with 0.5% ropivacaine 20 ml in group TAPB. Patient-controlled intravenous analgesia with sufentanil was provided to all the patients after surgery. Tramadol 50 mg was intravenously injected as a rescue analgesic to maintain visual analogue scale score within 24 h after surgery≤3. The consumption of anesthetics during surgery and amount of sufentanil consumed and require-ment for rescue analgesic within 24 h after surgery were recorded. Ramsay sedation scores were recorded at 2, 4, 6, 12 and 24 h after surgery. The occurrence of nausea and vomiting, pruritus and respiratory de-pression within 24 h after surgery were recorded. TAPB-related complications were also recorded in group TAPB. Results Compared with group C, the consumption of remifentanil was significantly reduced during surgery, and the amount of sufentanil consumed within 24 h after surgery was decreased(P<0.05), and no significant change was found in the incidence of Ramsay sedation scores, nausea and vomiting, pruritus or respiratory depression in group TAPB(P>0.05). No patients required rescue analgesic in two groups. TAPB-related complications were not found in group TAPB. Conclusion Preoperative TAPB reduces the perioperative opioid consumption and enhances the efficacy of postoperative analgesia in the patients under-going kidney transplantation.