Trial reportBMC anesthesiology2022
Effect of postoperative ultrasound-guided internal superior laryngeal nerve block on sore throat after intubation of double-lumen bronchial tube: a randomized controlled double-blind trial.
Trial report in BMC anesthesiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
11 citing papers in PubMed, 14 citations in OpenAlex.
- The Influence of Piriform Recess Instillation with Lidocaine Before Bronchoscopy on Post-General Anesthesia Cough: A Randomized Controlled Trial.Drug design, development and therapy · 2024Trial
- Effect of superior laryngeal nerve block in alleviating sore throat after application of i-gel supraglottic airway: a randomized controlled trial.BMC anesthesiology · 2023Trial
- Cheek Acupuncture Reduces Postoperative Sore Throat After Double-Lumen Endobronchial Intubation: A Randomized Controlled Trial.Journal of pain research · 2026Article
- Ultrasound-Guided Airway Nerve Blocks vs. Lidocaine Topical Anesthesia Using Video-Assisted Laryngoscopy in Suspected Difficult Intubation for Patients Undergoing Bariatric Surgery: A Randomized Clinical Trial.Anesthesiology research and practice · 2026Article
- 90° versus 110° rotation of left double lumen tube for endobronchial intubation: a randomized controlled trial.Journal of thoracic disease · 2025Article
- Postoperative Sore Throat After Tracheal Intubation: An Updated Narrative Review and Call for Action.Journal of pain research · 2025Review
- Effects of Dexmedetomidine as an Adjuvant in Preoperative Ultrasound-Guided Internal Branch of Superior Laryngeal Nerve Block on Postoperative Sore Throat and Hemodynamics in Patients With Double-Lumen Endotracheal Intubation: A Randomized Controlled Trial.Journal of pain research · 2025Article
- Pre-shaping double-lumen endotracheal tubes based on video laryngoscope blade curvature enhances first-attempt intubation success rate in patients undergoing thoracoscopic surgery: a randomized controlled trial.Frontiers in medicine · 2025Article
- Article
- Identifying the Risk Factors for Postoperative Sore Throat After Endotracheal Intubation for Oral and Maxillofacial Surgery.Therapeutics and clinical risk management · 2023Article
- Ultrasound-guided bilateral internal laryngeal nerve block for suppression of postoperative cough in adults undergoing endoscopic microlaryngeal laser surgeries: A randomized controlled trial.Journal of anaesthesiology, clinical pharmacologyArticle
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPostoperative sore throat (POST) is one of the main adverse postoperative outcome after tracheal intubation using double-lumen endobronchial tubes (DLTs). The aim of this study was to investigate the effectiveness and safety of ultrasound (US)-guided block of the internal branch of the superior laryngeal nerve (iSLN) for alleviating POST after intubation of DLTs.
methodsPatients undergoing thoracic surgery between August 2019 and August 2021 were randomized into two groups depending on whether they received US-guided iSLN block immediately after the operation. In the control group, the patients underwent a thoracic surgery under general anesthesia (GA) with DLTs without any special treatment, while the patients in the experimental group received US-guided iSLN block bilaterally with 2 ml of 0.25% ropivacaine on either side immediately after the operation. The primary outcome was the grading of sore throat at three-time points after the operation, i.e., immediate extubation, 2 h after extubation, and 24 h after extubation. Secondary outcomes included the rate of nausea and vomiting, hoarseness, dyspnea, and choking cough after swallowing saliva at 2 h after extubation.
resultsThe incidence and severity of sore throat were significantly lower in the experimental group than the control group at all time intervals (all P < 0.01). The rate of nausea and vomiting, hoarseness, dyspnea, and choking cough after swallow saliva at 2 h after extubation had no statistical difference (all P > 0.05).
conclusionsThe use of US-guided iSLN block can be effectively and safely applied to relieve POST after intubation of DLTs on thoracic surgery.
trial registrationThe study protocol was registered at the Chinese Clinical Trial Registry ( http://www.chictr.org.cn , NO. ChiCTR2000032188, 22/04/2020).
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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.