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Virtual endoscopy--a new assessment tool in difficult airway management
I Ahmad1, B Millhoff2, M John2
1Department of Anaesthesia, Guy's Hospital, Great Maze Pond, SE1 9RT, London, United Kingdom..
Journal of Clinical Anesthesia
|August 1, 2015
Summary
Virtual endoscopy using CT scans offers a noninvasive method for airway assessment, aiding in planning for complex head and neck pathologies. This technique provides accurate visualization, complementing traditional methods for difficult airway management.
Area of Science:
- Medical Imaging
- Otolaryngology
- Anesthesiology
Background:
- Preemptive airway mapping is crucial for managing patients with complex head and neck pathology.
- Conventional methods like nasendoscopy are invasive, poorly tolerated, and may not fully visualize airway structures.
Purpose of the Study:
- To introduce virtual endoscopy as a novel, noninvasive tool for difficult airway management planning.
- To compare the accuracy of virtual endoscopy with conventional fiberoscopy in airway assessment.
Main Methods:
- Utilized free online OsiriX software with head and neck CT scans to create virtual airway reconstructions.
- Performed a comparative analysis of virtual endoscopy and conventional fiberoscopy in three patients with complex airway pathologies.
Main Results:
- Virtual endoscopy provided a "fly-through" reconstruction of the airway.
- Demonstrated correlation between virtual endoscopy and conventional fiberoscopy findings in patients with glottic, subglottic, and multilevel airway issues.
Conclusions:
- Virtual endoscopy is a safe, noninvasive, and accurate method for airway assessment and educational purposes.
- This technique warrants further investigation as a valuable resource for difficult airway management planning.
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