This study is a feasibility study to see if an ultrasound scan of the vocal cords can detect narrowing of the vocal cords as seen in a condition called inducible laryngeal Obstruction (the vocal cords narrow or close on breathing in, which makes it very difficult to breathe).
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Number of vocal cords that are seen with the ultrasound
Timeframe: 1 day
Number of particpants where visualisation of mimicked inspiratory adduction is visible on ultrasound
Timeframe: 1 day
To assess the sensitivity, specificity and positive predictive value of the use of ultrasound
Timeframe: 1 day
Questionnaire Investigating user perspectives on the acceptability of TLUS
Timeframe: 1 day