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- Title
Transversus abdominis-plane block versus local anesthetic wound infiltration in lower abdominal surgery: a systematic review and meta-analysis of randomized controlled trials.
- Authors
Nanze Yu; Xiao Long; Lujan-Hernandez, Jorge R.; Succar, Julien; Xin Xin; Xiaojun Wang
- Abstract
Background Postoperative pain management is of great importance in perioperative anesthetic care. Transversus abdominis plane (TAP) block has been described as an effective technique to reduce postoperative pain and morphine consumption after open lower abdominal operations. Meanwhile, local anesthetic infiltration (LAI) is also commonly used as a traditional method. However, the effectiveness of these two methods has not been compared before. Methods A meta-analysis of all relevant randomized controlled trials (RCTs) was conducted to compare the efficacy of single shot TAP block with that of single shot LAI for postoperative analgesia in adults. Major medical databases and trial registries were searched for published and unpublished RCTs. The endpoints include postoperative visual analog scale (VAS) pain score, morphine requirement, and rate of postoperative nausea and vomiting (PONV). For continuous data, weighted mean differences (WMDs) were formulated; for dichotomous data, risk ratios (RR) were calculated. Results were derived using a random-/fixed-effects model with 95% confidence interval (CI). Results Four RCTs, encompassing 96 TAP-block and 100 LAI patients, were included in the final analysis. Patients in the TAP-block group had lower VAS pain scores 24 hours postoperatively compared with the LAI group, both at rest (WMD [95% CI] = -0.67 [p < 0.01] and with movement (WMD = -0.89, p < 0.01). There were no significant between-group differences in 24-hour postoperative morphine requirements, the rates if PONV or VAS pain scores at 2 and 4 h postoperatively. Conclusion TAP block and LAI provide comparable short-term postoperative analgesia, but TAP block has better long-lasting effect.
- Subjects
UNITED Kingdom; ABDOMINAL surgery; PAIN diagnosis; ABDOMEN; TRANSVERSUS abdominis muscle; ACADEMIC medical centers; ANESTHESIOLOGY; CONFIDENCE intervals; DATABASES; MEDICAL information storage &; retrieval systems; LOCAL anesthesia; MEDLINE; META-analysis; POSTOPERATIVE care; RISK assessment; SERIAL publications; SURGICAL complications; WOUND care; DATA analysis; RANDOMIZED controlled trials; ACQUISITION of data; ANATOMY
- Publication
BMC Anesthesiology, 2014, Vol 14, Issue 1, p1
- ISSN
1471-2253
- Publication type
Article
- DOI
10.1186/1471-2253-14-121