They were also excluded if chronic obstructive pulmonary disease (COPD) was suspected to be the primary diagnosis due to the irreversibility of at least some airway obstruction, as is well documented in this disease [11].
Battagel et al. analyzed the pharyngeal space of patients with obstructive sleep apnea syndrome at rest and in maximum comfortable protrusion, and found some airway improvements related to mandibular protrusion [7].
Namely, rescuers with some airway skills could immediately insert the ILMA and provide ventilation and oxygenation, whereas prolonged intubation efforts may prolong the hypoxic and hypercapnic interval.
However, evidence on the role of tachykinin receptors antagonism in asthma has been gathered and their potential to regulate some airway functions has been recognized.
There are randomized controlled trials and meta-analyses supporting the use of some airway devices and techniques, but for others no high-grade evidence is available and recommendations are necessarily based on expert consensus.
The list includes chronic obstructive pulmonary disease (COPD) due to cigarette smoking or alpha-1 antitrypsin (AAT) deficiency, cystic fibrosis, idiopathic pulmonary fibrosis (IPF), pulmonary arterial hypertension (PAH), and some allergic airways diseases.
Rare clusters of Sox2-positive goblet cells were observed in some large airways of Sox2Δ/Δ lungs, where they were associated with incomplete Sox2 deletion (asterisk in Fig. 4D), while inflammation was evident in both control and Sox2Δ/Δ mice.
Although in the present study the strips were represented by more than 90% alveolar walls (Table 2) it was not possible to exclude a constrictor effect of some distal airways and vessels.
30 Recently, the replacement of MDI propellants with more ecological formulations has permitted the modification of the characteristics of some ICS, delivering extra fine particles and increasing lung drug delivery; perhaps targeting smaller airways, some studies of real-life use attribute some advantages to these extra fne ICS with respect to traditional MDI, even at equipotent doses.
In some experiments airway resistance and compliance were measured with the FlexiVent device (FlexiVent; SCIREQ, Montreal, Québec, Canada).
