Background: The lower airway concentration of fractional exhaled nitric oxide (F) is unknown in children with chronic lung disease of infancy who have tracheostomy for long-term mechanical ventilation. We aimed to evaluate an online method of measuring F in a cohort of ventilator-dependent children with a tracheostomy and to explore the relationship between the peak F concentration (F peak) and the degree of respiratory support using the respiratory severity score.
Methods: We conducted a prospective cross-sectional study in 31 subjects who were receiving long-term respiratory support through a tracheostomy.
Background: Tracheobronchomalacia prevalence in premature infants on prolonged mechanical ventilation is high.
Objective: To examine the prevalence of tracheobronchomalacia diagnosed by tracheobronchography in ventilator-dependent infants, and describe the demographic, clinical and dynamic airway characteristics of those infants with tracheobronchomalacia.
Materials And Methods: This retrospective review studies 198 tracheobronchograms performed from 1998 to 2011 in a cohort of 158 ventilator-dependent infants <2 years of age.