Background Helium and oxygen mixtures (heliox), have been used sporadically in
respiratory medicine for decades. Their use in acute respiratory emergencies such as …

Background The effect of heliox as a nebulizer β 2-agonist driving gas in acute asthma
remains controversial. Objective To perform a systematic review with a meta-analysis of …

Nebulizers convert solutions or suspensions into aerosols with a particle size that can be
inhaled into the lower respiratory tract. There are pneumatic jet nebulizers, ultrasonic …

The noble gases have always been an enigma. Discovered late in the history of chemistry
and in seemingly small quantities in our atmosphere, they are some of the most unreactive …

Abstract Background The French Emergency Medicine Society, the French Intensive Care
Society and the Pediatric Intensive Care and Emergency Medicine French-Speaking Group …

Introduction Asthma is a common reason for presentation to the Emergency Department and
is associated with significant morbidity and mortality. While patients may have a relatively …

We examined systematically all controlled and cross‐over randomised trials in patients with
acute exacerbations of asthma and chronic obstructive pulmonary disease comparing …

Aerosol drug administration using helium-oxygen mixtures as a carrier gas has been
advocated in the treatment of severe airway obstruction. Helium's low density has been …

Studies of the efficacy of heliox in patients with severe asthma have shown mixed results.
Among the factors that are responsible for variable outcomes, the failure of heliox delivery …