Trial reportBMC women's health2026
Effect of Trendelenburg positioning on post-operative shoulder pain after gynecological laparoscopy: a randomized clinical trial.
Trial report in BMC women's health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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.
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Authors and funding
7 authors.
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Abstract
backgroundMinimally invasive surgical techniques have transformed disease management paradigms; however, laparoscopy remains associated with significant post-operative morbidity. Approximately 80% of patients report severe shoulder pain within 24 h following gynecological laparoscopic procedures despite inherent advantages over open surgery. We aimed to evaluate the efficacy of post-operative Trendelenburg positioning in mitigating shoulder pain after gynecological laparoscopy.
methodsThis randomized non-blinded trial enrolled 82 women (18–60 years) undergoing gynecological laparoscopy. Participants were allocated to either an intervention group (20° Trendelenburg position for 8 post-operative hours, n = 41) or control group (supine position with 0° head elevation, n = 41). Shoulder pain severity was assessed using the Numerical Rating Scale (NRS 0–10) at baseline, and at 6, 12, and 24 h post-operative intervals.
resultsIntervention group demonstrated significantly lower pain scores at all timepoints (baseline: 4.02 ± 0.28 vs. 5.21 ± 0.26; 6 h: 1.65 ± 0.22 vs. 3.56 ± 0.31; 12 h: 0.58 ± 0.17 vs. 2.34 ± 0.29; 24 h: 0.26 ± 0.22 vs. 1.48 ± 0.22; all p < 0.001). While both groups showed temporal pain reduction (p < 0.001), the intervention group exhibited significantly accelerated resolution (time × group interaction p = 0.004). Nausea/vomiting incidence was markedly lower in the intervention group (29.3% vs. 58.5%, p = 0.008).
conclusionsPost-operative 20° Trendelenburg positioning significantly reduces shoulder pain severity and accelerates recovery following gynecological laparoscopy. This noninvasive, zero-cost technique (easily implemented by nursing staff) represents a clinically impactful strategy to enhance post-operative recovery.
trial registrationThe protocol of this randomized, superiority, non-blinded clinical trial on parallel groups was registered on IRCT (IRCT20250224064837N1; URL: https://irct.behdasht.gov.ir/trial/83138 ) on 2025/05/24.
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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 Socratic graph.