Trial reportEuropean journal of anaesthesiology2019
Laryngoscopic techniques modulate anaesthesiologists' perception of halitosis in patients: A randomised controlled trial.
Trial report in European journal of anaesthesiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.
- Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation.The Cochrane database of systematic reviews · 2022Pooled it
- Application of a protective sleeve is associated with decreased occupational anxiety during endotracheal intubation: a randomized controlled trial.BMC anesthesiology · 2021Trial
- Chewing gum on postoperative oral Malodor in patients undergoing general anesthesia: a randomized non-inferiority trial.BMC anesthesiology · 2025Article
- Article
- New device and technique to protect intubation operators against COVID-19.Intensive care medicine · 2020Article
- Combination of sufentanil, dexmedetomidine and ropivacaine to improve epidural labor analgesia effect: A randomized controlled trial.Experimental and therapeutic medicine · 2020Article
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPerception of halitosis in patients during intubation is a common and additional stressor for anaesthesiologists and may lead to potential health risks.
objectivesWe hypothesised that intubation with videolaryngoscopy could help reduce the anaesthesiologists' perception of patients' oral malodor during intubation.
designA single-blinded, randomised controlled trial.
settingSingle centre general hospital, Guangdong Province, China.
participantsA total of 440 patients who underwent intubation under general anaesthesia for elective surgery, aged 18 to 60 years old, American Society of Anaesthesiologists class I to III, without upper airway abnormality or airway infection were enrolled.
interventionPatients were randomly assigned to receive either UE videolaryngoscopy (UE) or Macintosh's direct laryngoscopy (Macintosh) group. All intubations were performed by one of six very experienced anaesthesiologists.
main outcome measuresThe patient's oral odour score was measured prior to induction of anaesthesia. The anaesthesiologists' perception of the patient's oral malodor during intubation was recorded. The shortest distance from patient's mouth to the anaesthesiologist's nose (MN distance), the exertion rating and discomfort were also measured.
resultsThe oral malodor score did not differ in the UE and Macintosh groups prior to the induction of anaesthesia. However, the incidence of the anaesthesiologists' perception of halitosis during intubation was significantly lower in the UE group compared with the Macintosh group (P < 0.001). Similarly, the MN distance was significantly greater in the UE group compared with the Macintosh group (P < 0.001). The first-attempt success rate was higher in the UE group compared to the Macintosh group (P < 0.001). However, the exertion scores were considerably higher in the Macintosh group. After intubation, anaesthesiologists experienced more waist and shoulder discomfort with the Macintosh than the UE technique of intubation.
conclusionCompared with direct laryngoscopy, videolaryngoscopy might reduce the anaesthesiologists' perception of the patients' oral malodor, help improve first-attempt success rate, as well as alleviate the anaesthesiologists' waist and shoulder discomfort.
trial registrationClinicaltrials.gov (ChiCTR-IOR-15007038).
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