Upper airway pressure was measured during maximal exercise in 10 Thoroughbred racehorses with naturally occurring upper airway obstruction. Left laryngeal hemiplegia and arytenoid chondropathy resulted in substantial increases (30-40 cm H2O) in inspiratory upper airway pressure (Pl), whereas complicated aryepiglottic entrapment and subepiglottic cysts produced only modest increases (15 cm H2O) ...

conclusions pharyngeal airway dimensions, soft palate length, thickness, and position, and hyoid position are not significantly different between skeletal class i and class ii prepubertal children. results no significant difference in the upper airway, soft palate, and hyoid variables was found between the two groups (p > 0.05) and no correlation was found between anb difference and the other v...

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...

This review discusses the pathophysiological aspects of sleep-disordered breathing, with focus on upper airway mechanics in obstructive and central sleep apnoea, Cheyne-Stokes respiration and obesity hypoventilation syndrome. These disorders constitute the end points of a spectrum with distinct yet interrelated mechanisms that lead to substantial pathology, i.e. increased upper airway collapsib...

Upper-airway resistance syndrome (UARS) was first recognized in children in 1982 (Guilleminault et al., 1982). The term UARS, however, was not used until adult cases were reported in 1993 (Guilleminault et al., 1993). The description of UARS brought the attention of clinicians to a group of patients that was left undiagnosed and untreated despite severe impairment. The authors indicated that th...

BACKGROUND Lateral positioning decreases upper airway obstruction in paralyzed, anesthetized adults and in individuals with sleep apnea during sleep. The authors hypothesized that lateral positioning increases upper airway cross-sectional area and total upper airway volume when compared with the supine position in sedated, spontaneously breathing children. METHODS Children aged 2-12 yr requir...

Background: Potassium permanganate (PP) is a highly corrosive and deadly agent with a reported lethal dose of 10 g in adults. In this report, successful treatment of a patient poisoned with three times the lethal dose of PP is presented, and effective and early approach to such emergency toxicologic condition is discussed. Case Presentation:A 24-year-old woman presented to emergency room of our...

BACKGROUND Obstructive sleep apnoea (OSA) is commonly associated with obesity and can be improved by weight loss. Changes in upper airway size related to regional fat loss may mediate the improvement in OSA. This study aimed to assess changes in upper airway size and regional facial and abdominal fat with weight loss and their association with OSA improvement. METHODS Middle-aged obese men wi...