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Effects of transversus abdominis plane block versus quadratus lumborum block on postoperative analgesia: a meta-analysis of randomized controlled trials.

ABSTRACT: BACKGROUND:Trunk block technique has been used in postoperative analgesia for patients undergoing surgery, specifically, transversus abdominis plane block (TAPB) and quadratus lumborum block (QLB) have been proved effective. The purpose of this meta-analysis is to evaluate the effects of TAPB and QLB in postoperative analgesia. METHODS:Online databases, including MEDLINE, EMBASE, Cochrane Library (&Trail), Web of Science, CNKI, Wanfang and QVIP were applied to collect the randomized controlled trials (RCTs) from inception to Dec. 9th, 2019. Twenty-two studies were finally included containing 777 patients in the TAPB group and 783 cases in QLB group. RCTs comparing TAPB and QLB in postoperative analgesia were included in this meta-analysis. The indicators including total analgesia consumption postoperatively, operative time, duration of anesthesia, visual analogue scale (VAS) score at 24?h postoperatively, duration of postoperative analgesia, the number of patients requiring analgesia postoperatively and adverse reactions were analyzed. RESULTS:our findings showed that morphine consumption (mg) (WMD?=?3.893, 95%CI: 2.053 to 5.733, P?

SUBMITTER: Wang Y

PROVIDER: S-EPMC7199334 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Effects of transversus abdominis plane block versus quadratus lumborum block on postoperative analgesia: a meta-analysis of randomized controlled trials.

Wang Yanqing Y Wang Xiaojia X Zhang Kexian K

BMC anesthesiology 20200504 1

<h4>Background</h4>Trunk block technique has been used in postoperative analgesia for patients undergoing surgery, specifically, transversus abdominis plane block (TAPB) and quadratus lumborum block (QLB) have been proved effective. The purpose of this meta-analysis is to evaluate the effects of TAPB and QLB in postoperative analgesia.<h4>Methods</h4>Online databases, including MEDLINE, EMBASE, Cochrane Library (&Trail), Web of Science, CNKI, Wanfang and QVIP were applied to collect the randomiz ...[more]

PMID: 32366275

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Project description:Study objectivePatients undergoing open nephrectomy surgery experience severe perioperative pain, which is primarily due to incision of several muscles. Abdominal wall blocks are known to reduce pain without causing epidural-associated hypotension. We conducted this study to compare unilateral ultrasound-guided transmuscular quadratus lumborum block and posterior transversus abdominis block in combination with general anesthesia alone in terms of intraoperative and postoperative analgesics and hemodynamics and postoperative complications.MethodsThis was a randomized, double-blinded, controlled trial conducted in the operating room. This study included 48 patients aged 20-60 years, with ASA I and II, and a body mass index ≤ 30kg.m-2 who were scheduled for open nephrectomy procedure.The 48 patients scheduled for nephrectomy were randomly allocated into one of the following three groups after induction of general anesthesia: Group A (n=16) received USG transmuscular QLB; Group B (n=16) received unilateral USG posterior transversus abdominis plane (TAP) block; and Group C (n=16; control group) did not receive any blocks. Introperative fentanyl consumption, and hemodynamics (heart rate and mean arterial pressure (MAP)) were recorded after anesthesia induction, at surgical incision, and every 15min till the end of surgery. Visual Analogue Scale (VAS) was evaluated immediately at 30min and 1,2,4,6, and 12hours postoperatively. The time of first analgesic request was also recorded.ResultsIntraoperative fentanyl consumption (μg) was significantly lower in Groups A and B (164.69±27.35 and 190.31±44.48, respectively) than in Group C (347.50±63.64) (p<0.001). Postoperatively, total pethidine consumption was significantly lower in Groups A and B than in Group C (85.31±6.68, 84.06±4.17mg, and 152.19±43.43mg, respectively) (p<0.001. Time to rescue analgesia was longer in Groups A and B than in Group C (138.75±52.39min, 202.50±72.25min, and 37.50±13.42min, respectively) (p<0.001). VAS score was significantly lower in Groups A and B than in Group C at 30min and 1, 2, 4, and 6hours postoperatively.ConclusionTransmuscular quadratus lumborum block and posterior transversus abdominis blocks were effective in providing perioperative analgesia in patients undergoing open nephrectomy. However, quadratus lumborum block provided superior analgesia.

Dataset Information

Effects of transversus abdominis plane block versus quadratus lumborum block on postoperative analgesia: a meta-analysis of randomized controlled trials.

Publications

Effects of transversus abdominis plane block versus quadratus lumborum block on postoperative analgesia: a meta-analysis of randomized controlled trials.

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