2011
DOI: 10.4103/0019-5049.89868
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Ultrasound of the airway

Abstract: Currently, the role of ultrasound (US) in anaesthesia-related airway assessment and procedural interventions is encouraging, though it is still ill defined. US can visualise anatomical structures in the supraglottic, glottic and subglottic regions. The floor of the mouth can be visualised by both transcutaneous view of the neck and also by transoral or sublinguial views. However, imaging the epiglottis can be challenging as it is suspended in air. US may detect signs suggestive of difficult intubation, but the… Show more

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Cited by 161 publications
(116 citation statements)
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“…The arytenoid cartilages appear as hyperechoic shadows below the vocal ligaments. During phonation, the true cords oscillate and move towards the midline unlike the false cords, which remain relatively immobile [4]. In patients without nerve palsy, bilaterally symmetrical movements of the vocal ligaments can be seen on the transverse view and the arytenoids will appear at the same height.…”
mentioning
confidence: 83%
“…The arytenoid cartilages appear as hyperechoic shadows below the vocal ligaments. During phonation, the true cords oscillate and move towards the midline unlike the false cords, which remain relatively immobile [4]. In patients without nerve palsy, bilaterally symmetrical movements of the vocal ligaments can be seen on the transverse view and the arytenoids will appear at the same height.…”
mentioning
confidence: 83%
“…Ultrasonography also cannot be used in scenarios where there is subcutaneous air, as anatomical structures distal to the air are not visualized easily using ultrasonography. [13][14][15][16] Additionally, an ultrasonography machine is not always immediately available in an emergency scenario, and the ''boot-up'' time may be unacceptably slow. Other steps required for the use of ultrasonography (e.g., gel application, probe selection, image configuration) further delay the cricothyrotomy.…”
mentioning
confidence: 99%
“…10 However, intraluminal air prevents the visualisation of structures such as the posterior pharynx and the posterior wall of the trachea with US; therefore, injury to the posterior wall of the trachea cannot be completely avoided. 11 Knowledge and correct placement of the needle is important for safe practice and is paramount to success of US-PDT. Precise needle manipulation is also mandatory.…”
Section: Rationalementioning
confidence: 99%