SynthesisJournal of anesthesia2017
Clinical safety and effectiveness of transversus abdominis plane (TAP) block in post-operative analgesia: a systematic review and meta-analysis.
Synthesis in Journal of anesthesia, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 51 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Efficacy of Transversus Abdominis Plane (TAP) Block Techniques: A Comparison Between Intraoperative Surgeon Administration by Direct Visualization vs Image Guided Administration by Anesthesiologist, a Prospective Randomized Controlled Trial
Effect of Ultrasound-guided Transversus Abdominis Plane Block With Compound Lidocaine on Postoperative Pain in Patients Undergoing Gynecological Laparotomy:a Randomized Double-blind Controlled Trial
"Analgesic Efficacy of Combined Transversus Abdominis Plane Block and Posterior Rectus Sheath Block in Patients Undergoing Laparoscopic Appendectomy"
Who cites it
51 citing papers in PubMed, 4 syntheses or guidelines pooled it, 194 citations in OpenAlex.
- Transversus Abdominis Plane Block Versus Intraperitoneal Local Anesthetics in Bariatric Surgery: A Systematic Review and Network Meta-analysis.Obesity surgery · 2021Pooled it
- Transversus Abdominis Plane Block Appears to Be Effective and Safe as a Part of Multimodal Analgesia in Bariatric Surgery: a Meta-analysis and Systematic Review of Randomized Controlled Trials.Obesity surgery · 2021Pooled it
- Transversus Abdominis Plane Block With Liposomal Bupivacaine vs. Regular Anesthetics for Pain Control After Surgery: A Systematic Review and Meta-Analysis.Frontiers in surgery · 2020Pooled it
- Transversus Abdominis Plane Block versus Wound Infiltration with Conventional Local Anesthetics in Adult Patients Underwent Surgery: A Systematic Review and Meta-analysis of Randomized Controlled Trials.BioMed research international · 2020Pooled it
- Laparoscopic-assisted transversus abdominis plane block versus port-site infiltration in appendicectomy: multicentre randomized clinical trial.The British journal of surgery · 2025Trial
- Effects of erector spinae plane block and quadratus lumborum block on postoperative opioid consumption in laparoscopic prostatectomy: a randomized controlled clinical trial.Anaesthesiology intensive therapy · 2025Trial
- Laparoscopic-guided transversus abdominis plane block combined with port-site infiltration for postoperative analgesia after gastric bypass: a randomized, double-blind, controlled trial.Surgical endoscopy · 2025Trial
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- Intertransverse process block versus subcostal transversus abdominis plane block in patients undergoing laparoscopic radical gastrectomy: a prospective randomized controlled trial.BMC anesthesiology · 2025Trial
- Trial
- Trial
- A randomized-controlled trial comparing liposomal bupivacaine, plain bupivacaine, and the mixture of liposomal bupivacaine and plain bupivacaine in transversus abdominus plane block for postoperative analgesia for open abdominal hysterectomies.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2021Trial
- Effect of the Combination of Ketorolac and Bupivacaine on Transversus Abdominis Plane Block for Postoperative Analgesia After Gynecological Laparoscopic Surgery.Medical science monitor : international medical journal of experimental and clinical research · 2020Trial
- Surgeon-delivered laparoscopic transversus abdominis plane blocks are non-inferior to anesthesia-delivered ultrasound-guided transversus abdominis plane blocks: a blinded, randomized non-inferiority trial.Surgical endoscopy · 2020Trial
- Unilateral transversus abdominis plane block and port-site infiltration : Comparison of postoperative analgesic efficacy in laparoscopic cholecystectomy.Der Anaesthesist · 2020Trial
- Perioperative effects of caudal block on pediatric patients in laparoscopic upper urinary tract surgery: a randomized controlled trial.BMC pediatrics · 2019Trial
- The analgesic efficacy of ultrasound-guided transversus abdominis plane block for retroperitoneoscopic renal surgery: a randomized controlled study.BMC anesthesiology · 2019Trial
- Efficacy of Pectoral Nerve Block Type II for Breast-Conserving Surgery and Sentinel Lymph Node Biopsy: A Prospective Randomized Controlled Study.Pain research & management · 2018Trial
- Opioid-sparing multimodal pain regimen in combination with intraoperative transversus abdominis plane block reduces opioid use after laparoscopic paraesophageal hernia repair.Surgical endoscopy · 2026Article
- [Peripheral regional anesthesia and analgesia: "the magnificent seven" for training].Die Anaesthesiologie · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Transversus abdominis plane (TAP) blocks can provide analgesia postoperatively for a range of surgeries. Abundant clinical trials have assessed TAP block showing positive analgesic effects. This systematic review assesses safety and effectiveness outcomes of TAP block in all clinical settings, comparing with both active (standard care) and inactive (placebo) comparators. PubMed, EMBASE, The Cochrane Library and the University of York CRD databases were searched. RCTs were screened for their eligibility and assessed for risk of bias. Meta-analyses were performed on available data. TAP block showed an equivalent safety profile to all comparators in the incidence of nausea (OR = 1.07) and vomiting (OR = 0.81). TAP block was more effective in reducing morphine consumption [MD = 13.05, 95% CI (8.33, 51.23)] and in delaying time to first analgesic request [MD = 123.49, 95% CI (48.59, 198.39)]. Postoperative pain within 24 h was reduced or at least equivalent in TAP block compared to its comparators. Therefore, TAP block is a safe and effective procedure compared to standard care, placebo and other analgesic techniques. Further research is warranted to investigate whether the TAP block technique can be improved by optimizing dose and technique-related factors.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.