ArticleIndian journal of anaesthesia2025
Can point-of-care ultrasound predict the difficulty in intubation? - A prospective observational study.
Article in Indian journal of anaesthesia, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 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.
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Who cites it
3 citing papers in PubMed.
- Airway and Endotracheal Tubes: Role of POCUS.Indian journal of pediatrics · 2026Review
- Preoperative Airway ultrasonography for predicting difficult intubation: comparative performance of skin-to-epiglottis distance and bedside tests - a prospective observational study.BMC anesthesiology · 2026Observational
- Indian Journal of Anaesthesia Infographics of published articles.Indian journal of anaesthesia · 2025Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background and Aims: Airway ultrasonography (USG) parameters have been used to predict difficult tracheal intubation. However, the available literature on this topic is still controversial. This study aims to assess the role of preoperative airway USG parameters, namely hyomental distance in the head neutral (HMDn), head extended position (HMDe) and their ratio (HMDR), pre-epiglottic space (PreE), and the distance from the epiglottis to the vocal cords midpoint (E-VC) and their ratio (PreE/E-VC), in predicting difficult intubation. Methods: This prospective observational study was conducted on 190 patients. Preoperative USG airway parameters were measured. The primary outcome was to correlate these USG parameters with the Cormack-Lehane (CL) grade. The secondary outcome was to correlate these USG parameters with the intubation difficulty score (IDS). Kendall's tau correlation test and receiver operating characteristic curve analysis were performed. Results: A positive correlation was observed between PreE/E-VC ratio and CL grade [Kendall's tau: 0.423 (95% confidence interval (CI): 0.326, 0.513; Conclusion: The USG measurement of the PreE/E-VC ratio correlated with CL grade and IDS, while HMDR poorly correlated with CL grade and IDS and thus failed to predict difficult intubation.
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