نتایج جستجو برای: observed apnea
تعداد نتایج: 919051 فیلتر نتایج به سال:
The aim of this study was to investigate the effects of short repeated apneas on breathing pattern and circulatory response in trained (underwater hockey players: UHP) and untrained (controls: CTL) subjects. The subjects performed five apneas (A1-A5) while cycling with the face immersed in thermoneutral water. Respiratory parameters were recorded 1 minute before and after each apnea and venous ...
We describe the first case of a patient with Japanese encephalitis suffering from central sleep apnea. The patient was a 58-year-old man who presented with high fever, semicomatose state, nuchal stiffness, and incontinence of feces. The patient had complication of severe pneumonia, and was ventilated with a respirator. After weaning from the respirator, desaturation of oxygen was observed durin...
It has been observed that atrial overdrive pacing abolishes sleep apnea syndrome, but how it does so has not been explained. There is a possibility that it sends a retrograde inhibitory impulse to the vagal center in the brainstem, which in turn reduces the vagal tone, and thus prevents sleep apnea. Therefore, medical vagolytics such as atropine type of drugs should have the same effect. This i...
Although obstructive sleep apnea (OSA) is known to have a strong familial basis, no genetic polymorphisms influencing apnea risk have been identified in cross-cohort analyses. We utilized the National Heart, Lung, and Blood Institute (NHLBI) Candidate Gene Association Resource (CARe) to identify sleep apnea susceptibility loci. Using a panel of 46,449 polymorphisms from roughly 2,100 candidate ...
Inspiratory central drive is augmented by acute hypoxia that leads to a hyperventilation, but it is inhibited by capsaicin (Cap)-induced stimulation of pulmonary C fibers (PCFs) that produces an expiratory apnea. We hypothesized that acute hypoxia should shorten or eliminate the Cap-induced apnea. The ventilatory responses to bolus injection of Cap (0.2-0.5 microg) into the right atrium before ...
Background and aims: The present study was conducted to assess the role of sleepiness during the day (ESS) and sleep apnea in road accidents in Shahroud drivers. Methods: In this cross-sectional study, 312 drivers of members of Shahroud's terminals were studied in 1392. Demographic, Pittsburgh Sleep Quality Index (PSQI) standard questionnaire with seven scales, Epworth Sleepiness Scale (ESS) qu...
Background: The most common type of apnea among premature newborns is idiopathic apnea of prematurity. Recurrent apnea can lead to hypoxemia and central nervous system damage. Although caffeine and theophylline are the most commonly prescribed drugs in this field, there is disagreement about which medicine is preferred. The purpose of this study was to compare the ther...
Pharyngeal collapse in obstructive sleep apnea patients is likely a product of a sleep-related decrement in pharyngeal dilator muscle activity superimposed upon abnormal airway anatomy. We postulate that during wakefulness, increased pharyngeal dilator muscle activity in apnea patients compensates for diminished airway size thus maintaining patency. We studied the waking genioglossus (GG) elect...
BACKGROUND Previous studies have documented a high prevalence of atrial fibrillation (AF) in individuals with obstructive sleep apnea (OSA). Central sleep apnea (CSA) has been associated with AF in patients with heart failure. However, data from prospective cohorts are sparse and few studies have distinguished the associations of obstructive sleep apnea from CSA with AF in population studies. ...
OBJECTIVES This study evaluated the effect of Continuous Positive Airway Pressure treatment on oxidative stress parameters and the quality of life of elderly patients with obstructive sleep apnea syndrome. METHODS In total, 30 obstructive sleep apnea syndrome patients and 27 subjects without obstructive sleep apnea syndrome were included in this study. Both groups underwent quality of life an...
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