Trial reportSurgical endoscopy2022
Comparative effectiveness of lidocaine sprays between sitting and supine position for patients undergoing upper gastrointestinal endoscopy: a prospective randomized controlled trial.
Trial report in Surgical endoscopy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.
- Gag reflex management in dental practice: a bibliometric analysis from 2000 to 2025.Frontiers in oral health · 2025Pooled it
- Article
- Efficacy and Risk Assessment of Lateral Position Endotracheal Intubation Combined with Airway Surface Anesthesia in Gastrointestinal Endoscopic Surgery: A Randomized Controlled Non-Inferiority Study.Therapeutics and clinical risk management · 2025Article
- Evaluation of the Effect of Benzydamine Hydrochloride on the Intensity of Gag Reflex: A Randomized Single-Blind Clinical Trial.Journal of dentistry (Shiraz, Iran) · 2024Article
- The effect of virtual reality on pain, anxiety, and physiological parameters in patients undergoing gastroscopy.Digital healthArticle
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTopical pharyngeal anesthesia has improved esophagogastroduodenoscopy (EGD) efficiency with smooth insertion, reducing pain and discomfort. Lidocaine spray is one of the safe and widely used methods. In practice, the patients walk, sit in a wheelchair, or lie on a trolley bed, and the lidocaine sprays are applied to those in sitting or supine positions for pre-endoscopic preparation. Although there is no current guidance technique, this study aims to compare the effects of lidocaine sprays between sitting (Group A; Gp A) and supine positions (Group B; Gp B) for patients undergoing unsedated EGD.
methodsThis study was a single-center prospective randomized controlled trial. Unsedated EGD patients were randomly allocated the lidocaine spray in sitting or lidocaine spray in the supine position.
resultsLidocaine spray treatments were significantly different in the gag reflex (NRS; Gp A: 1.28 ± 0.67, Gp B: 1 ± 0.63, p = 0.0003), ease of esophageal instrumentation (NRS; Gp A: 7.68 ± 0.91, Gp B: 7.95 ± 0.66, p = 0.0042), and pain score (NRS; Gp A: 5.16 ± 2.08, Gp B: 4.53 ± 1.93, p = 0.0059). When considering modified Mallampati classification (MMC), MMC classes III and IV were significantly different in the same direction but MMC classes I and II were not.
conclusionThe technique of spraying in the supine position was associated with less gagging, less pain, and easier esophageal instrumentation, especially in patients with MMC classes III and IV.
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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.