Trial reportSingapore medical journal2017
A randomised controlled trial investigating the analgesic efficacy of transversus abdominis plane block for adult laparoscopic appendicectomy.
Trial report in Singapore medical journal, 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 10 papers, 2 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.
Ultrasound-guided Quadratus Lumborum Block Versus Transversus Abdominis Plane Block in Children Undergoing Laparoscopic Appendicectomy: A Randomized Clinical Study
Ultrasound-guided Transversus Abdominis Plane Block Versus Quadratus Lumborum Block for Postoperative Analgesia in Laparoscopic Appendectomy: A Prospective, Randomized, Controlled Clinical Study
"Analgesic Efficacy of Combined Transversus Abdominis Plane Block and Posterior Rectus Sheath Block in Patients Undergoing Laparoscopic Appendectomy"
Who cites it
10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 citations in OpenAlex.
- Transversus abdominis plane block versus port site anesthetic in adult laparoscopic appendectomy: a systematic review and meta-analysis.Surgical endoscopy · 2026Pooled it
- Efficacy of transversus abdominis plane block on postoperative nausea and vomiting: a meta-analysis of randomized controlled trial.BMC anesthesiology · 2024Pooled it
- Laparoscopic-assisted transversus abdominis plane block versus port-site infiltration in appendicectomy: multicentre randomized clinical trial.The British journal of surgery · 2025Trial
- Pain control and analgesic requirements following laparoscopy-assisted transversus abdominus plane (TAP) block compared to port site infiltration post-paediatric laparoscopic appendicectomy. A Randomised controlled trial.Pediatric surgery international · 2025Trial
- Comparison of the Postoperative Analgesic Effects of TAP and M-TAPA Blocks in Laparoscopic Appendectomy: A Pilot Randomized Controlled Trial.Journal of pain research · 2026Article
- Rectus sheath blocks for pediatric laparoscopic appendicectomy.BMC anesthesiology · 2025Observational
- Review
- Analgesic efficacy of ultrasound-guided transversus abdominis plane block and lateral approach quadratus lumborum block after laparoscopic appendectomy: A randomized controlled trial.Annals of medicine and surgery (2012) · 2022Article
- Efficacy of laparoscopic-guided transversus abdominis plane block for patients undergoing robotic-assisted gynaecologic surgery: A randomised control trial.Indian journal of anaesthesia · 2019Article
- Pain management in abdominal surgery.Langenbeck's archives of surgery · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionWe conducted a single-centre, prospective randomised clinical trial to investigate the analgesic efficacy of transversus abdominis plane (TAP) block in adult patients undergoing laparoscopic appendicectomy.
methodsPatients undergoing urgent laparoscopic appendicectomy under general anaesthesia alone (control group) and general anaesthesia supplemented by TAP block (TAP intervention group) were compared. All patients received a multimodal analgesia regime, which included postoperative morphine via a patient-controlled analgesia device. The primary endpoints were morphine consumption at 12 hours and 24 hours postoperatively. Secondary endpoints included pain scores, incidence of nausea and vomiting, and time to hospital discharge. A total of 58 patients were recruited, with 29 patients in each group.
resultsMean postoperative morphine consumption at 12 hours (control group: 11.45 ± 7.64 mg, TAP intervention group: 9.79 ± 8.09 mg; p = 0.4264) and 24 hours (control group: 13.38 ± 8.72 mg, TAP intervention group: 11.31 ± 8.66 mg; p = 0.3686) for the control and TAP intervention groups were not statistically different. Secondary outcomes were also not different between the two groups. Length of stay in the post-anaesthesia care unit was significantly shorter for the TAP intervention group, with a trend toward faster hospital discharge being observed.
conclusionTAP block, a regional anaesthetic procedure performed immediately prior to skin incision for laparoscopic appendicectomy, did not significantly improve postoperative analgesia outcomes.
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.