Airway Obstruction Flashcards
who are obligate nasal breathers?
neonates
also have large tongue and narrow subglottis
name the equation/principle/effect relating work of breathing to airway diameter
poiseuille’s equation
Bernoulli principle
venturi effect
as airway diameter decreases, work of breathing…
increases
what can cause airway obstruction
inflammatory infective allergy foreign bodies physical compression trauma neurological neoplastic burn congenital
high pitched harsh noise due to turbulent airflow resulting from airway obstructions defines what?
stridor
low pitched sonorous sound arising from nasopharyngeal airway defines what?
stertor
cherry red appearance of epiglottis
diagnosis?
acute epiglottitis
lymphoma treatment
high dose steroids to regress size then surgical removal
what virus causes recurrent respiratory papillomatosis?
HPV
what types of HPV cause recurrent respiratory papillomatosis?
types 6, 11, 16 and 18
what can cause subglottic stenosis?
inflammation from intubation
airway obstruction management? (8)
ABC oxygen heliox steroid adrenaline endoscopy secure with ET tube/tracheostomy treat underlying pathology
sevoflurane and intravenous propofol or remifentanyl is used for what?
general anaesthesia in airway endoscopy
helix, nebuliser budesonide, dexamethasone and nebuliser adrenaline is used in what?
pharmacotherapy in airway endoscopy
what should be avoided in all possibilities?
tracheostomy
