Trial reportObesity surgery2013
Efficacy of ultrasound-guided transversus abdominis plane block after laparoscopic bariatric surgery: a double blind, randomized, controlled study.
Trial report in Obesity surgery, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 12 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
57 citing papers in PubMed, 12 syntheses or guidelines pooled it, 110 citations in OpenAlex.
- 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
- Pooled it
- Regional anaesthesia for postoperative pain management following laparoscopic, visceral, non-oncological surgery a systematic review and meta-analysis.Surgical endoscopy · 2024Pooled it
- Single-Shot Regional Anesthesia for Bariatric Surgery: a Systematic Review and Network Meta-Analysis.Obesity surgery · 2023Pooled it
- 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 in Laparoscopic Bariatric Surgery-a Systematic Review and Meta-Analysis of Randomized Controlled Trials.Obesity surgery · 2021Pooled it
- The Analgesic Efficacy of Transversus Abdominis Plane Block After Bariatric Surgery: a Systematic Review and Meta-analysis with Trial Sequential Analysis.Obesity surgery · 2020Pooled it
- Clinical safety and effectiveness of transversus abdominis plane (TAP) block in post-operative analgesia: a systematic review and meta-analysis.Journal of anesthesia · 2017Pooled it
- Transversus abdominal plane block for postoperative analgesia: a systematic review and meta-analysis of randomized-controlled trials.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2016Pooled it
- Analgesic treatment in laparoscopic gastric bypass surgery: a systematic review of randomized trials.Obesity surgery · 2014Pooled it
- Efficacy of bupivacaine liposome transversus abdominis plane block in enhancing postoperative recovery following laparoscopic colorectal cancer resection.Langenbeck's archives of surgery · 2025Trial
- Comparison of Posterior Quadratus Lumborum Block vs Surgical Wound Infiltration in Patients Undergoing Bariatric Sleeve Gastrectomy Surgery.Obesity surgery · 2025Trial
- A randomized controlled trial on the effectiveness of laparoscopic-guided transversus abdominis plane block in patients undergoing laparoscopic IPOM plus.Hernia : the journal of hernias and abdominal wall surgery · 2024Trial
- Ultrasound-Guided External Oblique Intercostal Plane Block for Postoperative Analgesia in Laparoscopic Sleeve Gastrectomy: A Prospective, Randomized, Controlled, Patient and Observer-Blinded Study.Obesity surgery · 2024Trial
- 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
- Effect of Intravenous Infusion of Lidocaine Compared with Ultrasound-Guided Transverse Abdominal Plane Block on the Quality of Postoperative Recovery in Patients Undergoing Laparoscopic Bariatric Surgery.Drug design, development and therapy · 2022Trial
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 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe efficacy of ultrasound-guided transversus abdominis plane (USG-TAP) block as a part of multimodal analgesia was evaluated in morbidly obese patients undergoing laparoscopic bariatric surgery.
methodsWe studied 100 patients with body mass index > 35 kg/m2. They were randomly allocated to study (USG-TAP) and control groups. Pain scores at rest and on movement at various time points up to 24 postoperative hours were compared. Other parameters evaluated were patients requiring Tramazac hydrochloride (TMZ) as rescue analgesic, sedation score, time to ambulate, any adverse events, and patient satisfaction.
resultsThe median visual analogue scale pain score of the study (USG-TAP) group was consistently lower at 1, 3, 6, 12, and 24 h at rest and on movement, in the postoperative period. Number of patients requiring TMZ required in the first, third, and sixth hour was significantly lower in the USG-TAP group. The prolonged sedative effect of the TMZ affected the time to ambulate. Patients in the control group remained more sedated. Four patients in the control group required BIPAP support postoperatively; no adverse event was observed. Time to ambulate was 6.3 ± 1.8 h in USG-TAP and 8 ± 1.8 h in control groups; P < 0.001. Patient satisfaction scores were significantly higher in the USG-TAP group; P < 0.001.
conclusionsOur study demonstrates that the USG-TAP as part of multimodal analgesic technique in morbidly obese patients undergoing laparoscopic gastric bypass reduces opioid requirement, improves pain score, decreases sedation, promotes early ambulation, and has greater patient satisfaction.
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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.