Clinical and ultrasonographic assessment of airway indices among non-pregnant, normotensive pregnant and pre-eclamptic patients: a prospective observational study
Authors' conclusion
Routinely used clinical methods of airway assessment lack sensitivity and specificity. Ultrasound can visualise anatomical structures in the supraglottic and subglottic views and is encouraging as an airway assessment tool.
Study context
- Population
- Non-pregnant, normotensive pregnant and pre-eclamptic females
- Participants
- 55 / 55 / 55
- Exposure
- Non-pregnant vs Normotensive pregnant vs Pre-eclampsia
- Non-pregnantn = 55reference
- Normotensive pregnantn = 55
- Pre-eclampsian = 55
- Outcome
- Clinical and sonographic airway indices
Main finding
As reported in the abstract
- Several significant differences between pregnant and non-pregnant females, with additional changes in pre-eclamptic females: modified Mallampati score; sonographic tongue width, tongue volume, subglottic diameter, anterior neck soft tissue thickness at hyoid, epiglottis and vocal cords, and ratio of pre-epiglottic space to anterior, posterior and midpoint of anterior and posterior vocal folds
Observational data: associations, not effects.
Original publication
Clinical and ultrasonographic assessment of airway indices among non-pregnant, normotensive pregnant and pre-eclamptic patients: a prospective observational study. Int J Obstet Anesth. Published 1 February 2023. doi:10.
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