SynthesisObesity surgery2021
Transversus Abdominis Plane Block in Laparoscopic Bariatric Surgery-a Systematic Review and Meta-Analysis of Randomized Controlled Trials.
Synthesis in Obesity surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 5 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
20 citing papers in PubMed, 5 syntheses or guidelines pooled it, 30 citations in OpenAlex.
- Erector Spinae Block in Bariatric Surgery: a Systematic Review and Meta-Analysis of Randomized Controlled Trials.Obesity surgery · 2026Pooled it
- The Efficacy of Transversus Abdominis Plane Blocks in Roux-en-Y Gastric Bypass - a Systematic Review and Meta-Analysis of Randomised Control Trials.Obesity surgery · 2026Pooled it
- Erector Spinae Plane Block Versus Transversus Abdominis Plane Block for Postoperative Analgesia in Bariatric Surgery: A Systematic Review and Network meta-analysis.Obesity surgery · 2026Pooled it
- Transversus Abdominus Plane Block for Laparoscopic Sleeve Gastrectomy-A Systematic Review and Meta-analysis of Randomized Clinical Trials.Obesity surgery · 2025Pooled it
- Effect of Intraperitoneal Local Anesthetics in Laparoscopic Bariatric Surgery: A Meta-Analysis of Randomized Controlled Trials.World journal of surgery · 2022Pooled it
- Analgesic efficacy of the external oblique intercostal fascial plane block on postoperative acute pain in laparoscopic sleeve gastrectomy: a randomized controlled trial.Korean journal of anesthesiology · 2025Trial
- Laparoscopic assisted versus ultrasound guided transversus abdominis plane block in laparoscopic bariatric surgery: a randomized controlled trial.BMC anesthesiology · 2024Trial
- Laparoscopic-Assisted Transversus Abdominis Plane (TAP) Block Versus Port-Site Infiltration with Local Anesthetics in Bariatric Surgery: a Double-Blind Randomized Controlled Trial.Obesity surgery · 2023Trial
- Efficacy of laparoscopic transversus abdominis plane block on postoperative pain management and surgery side effects in laparoscopic bariatric surgeries.Langenbeck's archives of surgery · 2022Trial
- Analgesic efficacy of intraperitoneal local anaesthetic instillation (IPLA) in laparoscopic bariatric surgery: a systematic review and meta-analysis.Journal of anesthesia, analgesia and critical care · 2026Review
- Intraoperative electroencephalography predicts postoperative nausea and vomiting in laparoscopic sleeve gastrectomy.Journal of anesthesia and translational medicine · 2025Article
- Article
- Postoperative pain trajectory and opioid requirements after laparoscopic bariatric surgery: a single-centre historical cohort study.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2024Article
- Article
- Anesthesia and perioperative management of bariatric surgery in a patient with BMI over 70 kg/m2: a case report.Journal of surgical case reports · 2023Article
- Predictors of post-discharge pain and satisfaction with pain management after laparoscopic bariatric surgery: a prospective cohort study.Surgical endoscopy · 2023Article
- Prescription and consumption of opioids after bariatric surgery: a multicenter prospective cohort study.Surgical endoscopy · 2023Article
- Transversus Abdominis Plane Block as a Strategy for Effective Pain Management in Patients with Pain during Laparoscopic Cholecystectomy: A Systematic Review.Journal of clinical medicine · 2022Review
- The Use of Peripheral Nerve Blockade in Laparoscopic and Robotic Surgery: Is There a Benefit?Current pain and headache reports · 2022Review
- Patients with sleep-disordered breathing for bariatric surgery.Saudi journal of anaesthesiaReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeEffective postoperative analgesia is paramount in patients undergoing bariatric surgery, given their increased predisposition to narcotic-induced respiratory depression. Transversus abdominis plane (TAP) block has shown promise in the enhanced recovery pathway for several abdominal procedures. We performed a systematic review and meta-analysis to compare the effectiveness of TAP block in laparoscopic bariatric surgery. MATERIALS AND
methodsPubMed, EMBASE and Cochrane databases were searched for relevant articles from inception until June 2020. All randomized trials that compared TAP blocks versus none in laparoscopic bariatric procedures were included. The primary outcome was narcotic consumption at 24 h postoperatively, whilst secondary outcomes included postoperative pain scores at 24 h, time to ambulation, postoperative nausea and vomiting (PONV) and complication rates. Random effects models were used to calculate pooled effect size estimates.
resultsSeven randomized controlled trials were included, capturing 617 patients. There was high statistical heterogeneity across studies. On random effects analysis, there were no significant differences in narcotic consumption (MD -12.63 mg, 95% CI = -31.67 to 6.41, p = 0.19), pain scores (MD -0.71, 95% CI = -1.93 to 0.50, p = 0.25) or complications (RD = -0.00, 95% CI = -0.03 to 0.03, p = 0.87) between TAP and no TAP groups. However, TAP was associated with significantly less time to ambulation (MD -2.22 h, 95% CI = -3.89 to -0.56, p = 0.009) and PONV (OR = 0.13, 95% CI = 0.05 to 0.35, p < 0.0001).
conclusionsTAP in laparoscopic bariatric surgery is associated with significantly less PONV and time to ambulation, but similar complication rates, narcotic usage and postoperative pain at 24 h compared to no TAP.
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.