OBJECTIVE To assess possible alterations in the tidal volume and peak inspiratory pressure delivered by seven models of manually operated self-inflating resuscitation bags as a function of the oxygen supply rate used. METHODS The resuscitation bags tested were the following: Oxigel, models A and B; CE Reanimadores; ProtecSolutions; Missouri; Axmed; and Narcosul. For the measurements, a wall o...

Diskhaler (FP-DH), developed for inhalation of corticosteroids, is widely used for the treatment of asthma. A dry powder inhaler (DPI) is a breath controlled drug delivery system, in which a turbulent airstream is created by exploiting the patient’s own inspiratory flow rate and is required to aerosolize particles for inhalation at a satisfactory peak inspiratory flow rate, which can achieve su...

BACKGROUND Nasal sensation of airflow describes the perception of the passage of air through the nose. Nasal obstruction can be assessed using subjective techniques (symptom scores and visual analogue scales [VAS]) and objective techniques (anterior rhinomanometry [RMN], acoustic rhinometry [AR], and peak nasal inspiratory flow [PNIF]). Few studies have evaluated the correlation between these t...

OBJECTIVE To investigate the differences in breathing pattern and effort in infants at birth who failed or succeeded on continuous positive airway pressure (CPAP) during the first 48 hours after birth. METHODS Respiratory function recordings of 32 preterm infants were reviewed of which 15 infants with a gestational age of 28.6 (0.7) weeks failed CPAP and 17 infants with a GA of 30.1 (0.4) wee...

BACKGROUND The Nasal Allergen Challenge (NAC) model allows the study of Allergic Rhinitis (AR) pathophysiology and the proof of concept of novel therapies. The Allergic Rhinitis - Clinical Investigator Collaborative (AR-CIC) aims to optimize the protocol, ensuring reliability and repeatability of symptoms to better evaluate the therapies under investigation. METHODS 20 AR participants were ch...

INTRODUCTION Patients suffering from nasal obstruction due to nasal valve compromise may benefit from a nasal dilator. Several devices for widening of the external/internal nasal valve region can be applied endonasally (Airmax, Nasanita, Nozovent) or externally (Breathe Right). MATERIALS AND METHODS 100 patients suffering from nasal obstruction due to external or internal nasal valve compromi...