Upper airway obstruction. ... and oxygen saturation.

Upper Airway Obstruction*

Chronic upper airway obstruction is frequently unrecognized or misdiagnosed as other conditions such as asthma or chronic airflow obstruction (CAO). Clinical features such as stridor may lead to diagnosis or it may initially be suspected from the results of pulmonary function tests (PFTs) ordered for another reason. We will review the physiology and the pulmonary function tests which are necess...

Upper airway obstruction in children

In this review, the characters of children who are admi t ted to PICU wi th severe upper a i rway obstruction will be discussed further. Difficulties of in tubat ion, ind icat ions and compl icat ions o f t racheo tomy w i l l be d i scussed a f te rwards . Angioedema, bacterial tracheitis, acute epiglottitis and croup will be discussed with details separately. Laryngomalacia will also be discu...

Upper airway obstruction in children.

Poiseuille’s law is central to the understanding and management of all airway obstructions in children, with the clinical impact of even a small reduction in radius being compounded by the inverse relationship of the resistance to the radius to the power 4. Indeed deterioration from a ‘mild’ obstruction to life threatening airway compromise may be heralded by slight decrease in airway diameter ...

Stridor and upper airway obstruction in children.

Pulmonary edema and upper airway obstruction.

Recently, DE Sofer et al(Chest 1984; 86:401-03)suggested that the pulmonary edema ofpatients with upper airway obstruction (UAO) was roentgenologically invisible because of the increase in lung volume befure the reliefofthe obstruction. In Dr. Sofer’s article, as well as in others,’4 objective dates ofincrease in lung volumes are not reported. Research in patients with chronic UAO showed differ...