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Chapter 5 - Pre-anaesthetic Airway Assessment

from Section 1 - Airway Management: Background and Techniques

Published online by Cambridge University Press:  03 October 2020

Tim Cook
Affiliation:
Royal United Hospital, Bath, UK
Michael Seltz Kristensen
Affiliation:
Rigshospitalet, Copenhagen University Hospital, Denmark
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Summary

Failure to properly assess and identify possible difficulties with airway management and incorporate these findings to airway management strategies can lead to a poor clinical outcome. A thorough patient history review and physical examination, including bedside airway assessment, often reveal either congenital or acquired clinical conditions that may affect airway management. Ultrasound, radiographic studies and bedside flexible endoscopy for airway assessment are often necessary to understand the mechanism of pathophysiology of the lower airway. The advancement of technology, such as three-dimensional imaging, cone-beam computer tomography and virtual endoscopy, etc., is resulting in the emergence of potential future airway assessment tools. However, the ideal assessment tool for difficult airway management does not exist and unanticipated difficulties often occur. Using multiple tests to predict difficulty in airway management is better than any single test used in isolation. In addition, adverse human factors can significantly impact airway management. The importance of incorporating cognitive aids in our routine practice cannot be underestimated. Airway assessment forms the first part of any airway management strategy, including the use of certain medications and airway techniques. As practitioners, we must rise to the occasion and perform best clinical practice; there can no longer be a disconnect in what we know and what we do. We need to be the strong link in the chain in providing safe and quality care for our patients.

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Chapter
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Publisher: Cambridge University Press
Print publication year: 2020

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References

Further Reading

Alsufyani, NA, Flores-Mir, C, Major, PW. (2012). Three-dimensional segmentation of the upper airway using cone beam CT: a systematic review. DentoMaxilloFacial Radiology, 41, 276284.Google Scholar
American Society of Anesthesiologists Task Force on Perioperative Management of Patients with Obstructive Sleep Apnea. (2014). Practice guidelines for the perioperative management of patients with obstructive sleep apnea: an updated report by the American Society of Anesthesiologists Task Force on Perioperative Management of Patients with Obstructive Sleep Apnea. Anesthesiology, 120, 268286.CrossRefGoogle Scholar
Anderson, J, Klock, AP. (2018). Airway assessment and prediction of the difficult airway. In: Hagberg, CA, Artime, CA, Aziz, MF (Eds.), Hagberg and Benumof’s Airway Management. 4th ed. Philadelphia: Elsevier. pp. 185196.Google Scholar
Bradley, P, Chapman, G, Greenland, K. (2016). Part 2. The traditional approach to normal and difficult airway assessment. In: Bradley P, Chapman G, Crooke B, Greenland K, Airway Assessment. ANZCA. Available at: www.anzca.edu.au/documents/pu-airway-assessment-20160916v1.pdf (Accessed 2 March 2019).Google Scholar
Chrimes, N. (2016). The Vortex: a universal ‘high-acuity implementation tool’ for emergency airway management. British Journal of Anaesthesia, 117(Suppl 1), i20i27.CrossRefGoogle ScholarPubMed
Chung, F, Abdullah, HR, Liao, P. (2016). STOP-Bang questionnaire: a practical approach to screen for obstructive sleep apnea. Chest, 149, 631638.CrossRefGoogle ScholarPubMed
Cook, TM, Woodall, N, Harper, J, Benger, J. (2011). Major complications of airway management in the UK: results of the Fourth National Audit Project of the Royal College of Anaesthetists and the Difficult Airway Society. Part 2: intensive care and emergency departments. British Journal of Anaesthesia, 106, 632642.Google Scholar
Kapur, VK, Auckley, DH, Chowdhuri, S, et al. (2017). Clinical practice guideline for diagnostic testing for adult obstructive sleep apnea: an American Academy of Sleep Medicine clinical practice guideline. Journal of Clinical Sleep Medicine, 13, 479504.Google Scholar
Pearce, A, Shaw, J. (2011). Airway assessment and planning. In: 4th National Audit Project of the Royal College of Anaesthetists and Difficult Airway Society. Major Complications of Airway Management in the United Kingdom. Report and Findings. Editors Cook TM, Woodall N, Frerk C. London: Royal College of Anaesthetists. pp. 135142. ISBN 978-1-9000936-03-3. Available at: https://www.nationalauditprojects.org.uk/NAP4_home.Google Scholar
Truong, AT, Truong, DT, Rahlfs, TF. (2018). TRS score: proposed mnemonic for airway assessment and management in patients with head and neck cancers. Head & Neck, 40, 27572758.CrossRefGoogle ScholarPubMed
Woodward, LJ, Kam, PCA. (2009). Ankylosing spondylitis: recent developments and anaesthetic implications. Anaesthesia, 64, 540548.Google Scholar

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