Trial reportSurgical endoscopy2025
Shoulder pain after laparoscopic antireflux surgery: a single-center, randomized, open-label trial.
Trial report in Surgical endoscopy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04936711 (Randomized Prospective Interventional Study), which is not on this map. Cited by 2 papers.
What it found
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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.
Randomized Prospective Interventional Study: Pain Relief After Laparoscopic Primary Hiatal Hernia Repair
Who cites it
2 citing papers in PubMed.
- Symmetrical anterior-posterior partial fundoplication: technique and outcomes.Surgical endoscopy · 2026Article
- High blood glucose and shoulder pain in middle-aged and older Chinese adults: a secondary analysis of the China health and retirement longitudinal study (CHARLS).Scientific reports · 2026Article
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.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPost-laparoscopic shoulder pain (PLSP) is a significant source of postoperative morbidity after hiatal hernia repair and antireflux surgery. We evaluated whether adjunctive pain relief strategies-instillation of 0.25% bupivacaine over the left hemidiaphragm or postoperative back massager use-reduced opioid use or pain severity after laparoscopic antireflux surgery (LARS).
methodsThis single-center, randomized, open-label trial included patients who underwent elective primary LARS between May 2021 and April 2024. Participants were randomly assigned (1:1:1) to one of three groups: A, standard medication regimen; B, standard + intraoperative instillation of 0.25% bupivacaine over the left hemidiaphragm; or C, standard + back massager use. Primary outcomes included overall pain and postoperative use of opioids. The secondary outcomes were pain frequency and severity by anatomical location. Assessments were performed 1, 3, 6, 24, 72, and 168 h after surgery. This trial was registered (ClinicalTrials.gov: NCT04936711) and is now complete.
resultsForty-three patients were randomized to groups A (n = 16), B (n = 10), and C (n = 17). One had a postoperative complication, and four were excluded (missing data: n = 2, incorrect massager use: n = 2), leaving 38 per-protocol patients (A: 16, B: 9, C: 13). The median age was 66 years (IQR 57-69), median BMI 28.4 kg/m
conclusionsPLSP is very common after LARS. Intraoperative bupivacaine instillation at the diaphragm reduced opioid use and pain severity in the immediate postoperative period, while back massagers provided no additional benefit.
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