Trial reportSurgical endoscopy2020
Analgesic effect of postoperative laparoscopic-guided transversus abdominis plane (TAP) block, associated with preoperative port-site infiltration, within an enhanced recovery after surgery protocol in one-anastomosis gastric bypass: a randomized clinical trial.
Trial report in Surgical endoscopy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 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
12 citing papers in PubMed, 3 syntheses or guidelines pooled it, 19 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 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
- Evidence Map of Pharmacologic and Non-Pharmacologic Perioperative Strategies for Managing Acute Postoperative Pain After Laparoscopic Surgery, 2012-2025: The M-PALS Collaborative.Journal of clinical medicine · 2026Review
- Dynamic ultrasound monitoring of intraperitoneal effusion for predicting complications after laparoscopic gastrectomy.World journal of gastrointestinal surgery · 2026Article
- Efficacy of fascial plane blocks in enhanced recovery after surgery protocols for abdominal surgery: A brief meta-analysis.European journal of anaesthesiology and intensive care · 2025Article
- Review
- Introduction of day-case robotic liver surgery: a case series from a tertiary hepatobiliary and pancreatic centre.Surgical endoscopy · 2024Article
- Surgeon administered transversus abdominis plane block: anatomic principles and technique.Journal of robotic surgery · 2023Review
- Enhanced recovery after bariatric surgery: an Italian consensus statement.Surgical endoscopy · 2022Article
- The Use of Peripheral Nerve Blockade in Laparoscopic and Robotic Surgery: Is There a Benefit?Current pain and headache reports · 2022Review
- Implementation of an Enhanced Recovery After Surgery (ERAS) protocol for acute complicated and uncomplicated appendicitis.Techniques in coloproctology · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe use of ultrasonography to assist needle placement during transverse abdominal plane (TAP) technique has provided direct visualization of surround anatomical musculature and facial planes. However, the increased girth in patients undergoing bariatric surgery is challenging to visualize via ultrasonography which may lead to poor postoperative analgesia.
objectiveThe aim of the study is to investigate whether the addition of postoperative laparoscopic-guided TAP block as part of a multimodal analgesic regimen within the ERAS protocol compared to no block provides better postoperative analgesia in patients undergoing one-anastomosis gastric bypass surgery. PATIENTS AND
methodsA prospective clinical trial was performed. Patients were randomized into two groups: patients undergoing postoperative laparoscopic-guided TAP (TAP-lap) and patients not receiving TAP-lap (Control). Multimodal analgesia included preoperative port-site infiltration with Bupivacaine 0.25% in both groups and systemic Acetaminophen. Pain quantification as measured by visual analogic scale (VAS) was assessed at 6 and 24 h after surgery, and 24-h postoperative opioid consumption.
resultsOne hundred and forty patients were included, 70 in each group. The mean operation time was 78.5 ± 14.4 min in TAP-lap and 75.9 ± 15.6 min in Control (NS). The mean postoperative pain, as measured by VAS, 6 h after surgery was 23.1 ± 11.3 mm in TAP-lap and 41.8 ± 16.2 mm in Control (p = 0.001). 24 h after surgery was 16.6 ± 11.4 mm in TAP-lap and 35.4 ± 12.7 mm in Control (p = 0.001). Morphine rescues were necessary in 14.2% in Control and 2.8% in TAP-lap (p = 0.035).
conclusionLaparoscopic-guided TAP block as part of a multimodal analgesia regimen can reduce postoperative pain and opioid consumption, without increasing operative time.
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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.