{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,10]],"date-time":"2026-11-10T13:40:36Z","timestamp":1794318036373,"version":"4.9.0"},"reference-count":33,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2020,3,2]],"date-time":"2020-03-02T00:00:00Z","timestamp":1583107200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2020,3,2]],"date-time":"2020-03-02T00:00:00Z","timestamp":1583107200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Anesthesiol"],"published-print":{"date-parts":[[2020,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Abdominal surgery is common and is associated with severe postoperative pain. The transverse abdominal plane (TAP) block is considered an effective means for pain control in such cases. The quadratus lumborum (QL) block is another option for the management of postoperative pain. The aim of this study was to conduct a meta-analysis and thereby evaluate the efficacy and safety of QL blocks and TAP blocks for pain management after abdominal surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We comprehensively searched PubMed, EMBASE, EBSCO, the Cochrane Library, Web of Science and CNKI for randomized controlled trials (RCTs) that compared QL blocks and TAP blocks for pain management in patients undergoing abdominal surgery. All of the data were screened and evaluated by two researchers. RevMan5.3 was adopted for the meta-analysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of 8 RCTs involving 564 patients were included. The meta-analysis showed statistically significant differences between the two groups with respect to postoperative pain scores at 2\u2009h (standardized mean difference [Std.MD]\u2009=\u2009\u2212\u20091.76; 95% confidence interval [CI]\u2009=\u2009\u2212\u20092.63 to \u2212\u20090.89;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u2009.001), 4\u2009h (Std.MD\u2009=\u2009-0.77; 95% CI\u2009=\u2009-1.36 to \u2212\u20090.18;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u2009.01),6\u2009h (Std.MD\u2009=\u2009-1.24; 95% CI\u2009=\u2009-2.31 to \u2212\u20090.17;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u2009.02),12\u2009h (Std.MD\u2009=\u2009-0.70; 95% CI\u2009=\u2009-1.27 to \u2212\u20090.13; p\u2009=\u2009.02) and 24\u2009h (Std.MD\u2009=\u2009-0.65; 95% CI\u2009=\u2009-1.29 to \u2212\u20090.02;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u2009.04); postoperative morphine consumption at 24\u2009h (Std.MD\u2009=\u2009-1.39; 95% CI\u2009=\u2009-1.83 to \u2212\u20090.95;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u2009.001); and duration of postoperative analgesia (Std.MD\u2009=\u20092.30; 95% CI\u2009=\u20091.85 to 2.75; p\u2009&lt;\u2009.001). There was no statistically significant difference between the two groups with regard to the incidence of postoperative nausea and vomiting (PONV) (RR\u2009=\u20090.55;95% CI\u2009=\u20090.27 to 1.14;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.11).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The QL block provides better pain management with less opioid consumption than the TAP block after abdominal surgery. In addition, there are no differences between the TAP block and QL block with respect to PONV.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12871-020-00967-2","type":"journal-article","created":{"date-parts":[[2020,3,2]],"date-time":"2020-03-02T10:03:09Z","timestamp":1583143389000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":78,"title":["Quadratus lumborum block versus transversus abdominis plane block for postoperative analgesia in patients undergoing abdominal surgeries: a systematic review and meta-analysis of randomized controlled trials"],"prefix":"10.1186","volume":"20","author":[{"given":"Xiancun","family":"Liu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tingting","family":"Song","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuejiao","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingjing","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Conghui","family":"Shan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liangying","family":"Chang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haiyang","family":"Xu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,3,2]]},"reference":[{"issue":"5","key":"967_CR1","doi-asserted-by":"publisher","first-page":"638","DOI":"10.1097\/ACO.0000000000000378","volume":"29","author":"J Borglum","year":"2016","unstructured":"Borglum J, Gogenur I, Bendtsen TF. Abdominal wall blocks in adults. Curr Opin Anaesthesiol. 2016;29(5):638\u201343.","journal-title":"Curr Opin Anaesthesiol"},{"issue":"5","key":"967_CR2","doi-asserted-by":"publisher","first-page":"1079","DOI":"10.1097\/00000542-200511000-00023","volume":"103","author":"CL Wu","year":"2005","unstructured":"Wu CL, Cohen SR, Richman JM, Rowlingson AJ, Courpas GE, Cheung K, Lin EE, Liu SS. Efficacy of postoperative patient-controlled and continuous infusion epidural analgesia versus intravenous patient-controlled analgesia with opioids: a meta-analysis. Anesthesiology. 2005;103(5):1079\u201388 quiz 1109-1010.","journal-title":"Anesthesiology"},{"issue":"11","key":"967_CR3","doi-asserted-by":"publisher","first-page":"4688","DOI":"10.1007\/s00464-017-5537-6","volume":"31","author":"JS Cho","year":"2017","unstructured":"Cho JS, Kim HI, Lee KY, Son T, Bai SJ, Choi H, Yoo YC. 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Best Pract Res Clin Anaesthesiol. 2019;33(4):559\u201371.","journal-title":"Best Pract Res Clin Anaesthesiol"},{"issue":"3","key":"967_CR12","doi-asserted-by":"publisher","first-page":"233","DOI":"10.1093\/jhps\/hny024","volume":"5","author":"CL McCrum","year":"2018","unstructured":"McCrum CL, Ben-David B, Shin JJ, Wright VJ. Quadratus lumborum block provides improved immediate postoperative analgesia and decreased opioid use compared with a multimodal pain regimen following hip arthroscopy. J Hip Preserv Surg. 2018;5(3):233\u20139.","journal-title":"J Hip Preserv Surg"},{"issue":"3","key":"967_CR13","doi-asserted-by":"publisher","first-page":"742","DOI":"10.4103\/aer.AER_108_18","volume":"12","author":"NK Yousef","year":"2018","unstructured":"Yousef NK. Quadratus Lumborum block versus Transversus Abdominis plane block in patients undergoing Total abdominal hysterectomy: a randomized prospective controlled trial. Anesth Essays Res. 2018;12(3):742\u20137.","journal-title":"Anesth Essays Res"},{"issue":"5","key":"967_CR14","doi-asserted-by":"publisher","first-page":"674","DOI":"10.1097\/AAP.0000000000000645","volume":"42","author":"G Oksuz","year":"2017","unstructured":"Oksuz G, Bilal B, Gurkan Y, Urfalioglu A, Arslan M, Gisi G, Oksuz H. Quadratus Lumborum block versus Transversus Abdominis plane block in children undergoing low abdominal surgery: a randomized controlled trial. Reg Anesth Pain Med. 2017;42(5):674\u20139.","journal-title":"Reg Anesth Pain Med"},{"issue":"4","key":"967_CR15","first-page":"338","volume":"39","author":"G Li","year":"2018","unstructured":"Li G, Gai DX. Postoperative analgesia efficacy of quadratus lumborum block versus transversus abdominis plane block in patients undergoing caesarean section. Int J Anesthesiol Resuscitation. 2018;39(4):338\u2013340,345.","journal-title":"Int J Anesthesiol Resuscitation"},{"issue":"6","key":"967_CR16","doi-asserted-by":"publisher","first-page":"757","DOI":"10.1097\/AAP.0000000000000495","volume":"41","author":"R Blanco","year":"2016","unstructured":"Blanco R, Ansari T, Riad W, Shetty N. Quadratus Lumborum block versus Transversus Abdominis plane block for postoperative pain after cesarean delivery: a randomized controlled trial. Reg Anesth Pain Med. 2016;41(6):757\u201362.","journal-title":"Reg Anesth Pain Med"},{"issue":"8","key":"967_CR17","first-page":"741","volume":"39","author":"MH Zhu","year":"2018","unstructured":"Zhu MH, Tang Y, Xu Q, Qin Q, Chen Y. Quadratys lumborum block versus transversus abdominis plane block for analgesia after total abdominal hysterectomy. 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