This study was designed to test a hypothesis that patients with sleep apnea have higher blood pressure in the morning, following a night spent in apnea and hypoxemia, than in the evening. To accomplish this, we prospectively studied a set of 611 patients referred to our clinic because of suspicion of sleep apnea. All patients had full nocturnal polysomnography, including measurement of snoring....

Last week we publiihed an essay on snoring, its causes, varying degrees of severity, and the types of remedies people have sought. I observed that there is very little literature in scientific and medical journals on snoring and that, untif recently, it was not treated as a medlcsf problem at all. 1 However, this picture is beginning to change due to the recent interest in a breathing disorder ...

Background: Many reports are available about the increasing rate of mortality due to overuse of opioids. It has been suggested that sleep apnea can be a cause of mortality because of overuse of opioids. Opium use is common in Iran. This study aimed to assess the effect of opium on polysomnographic findings in opium addicts with sleep apnea syndrome. Materials and Methods: In this prospective ca...

BACKGROUND The study was performed in order to determine the risk factors for difficult tracheal intubation in obstructive sleep apnea patients. METHODS For 115 male patients with obstructive sleep apnea syndrome and who were undergoing palatal muscle resection (PMR), we investigated the correlation between their age, height, weight, body mass index (BMI), their Epworth Sleepiness Scale (ESS)...

BACKGROUND Previous studies have suggested that the obstructive sleep apnea syndrome may be an important risk factor for stroke. It has not been determined, however, whether the syndrome is independently related to the risk of stroke or death from any cause after adjustment for other risk factors, including hypertension. METHODS In this observational cohort study, consecutive patients underwe...

Sleep-related breathing disorders range from habitual snoring to severe obstructive sleep apnea syndrome. The prevalence of habitual snoring is high and up to 60 % depending on age, sex and body weight. However, in contrast to habitual snoring obstructive sleep apnea syndrome may be associated with medical complications. The prevalence of obstructive sleep apnea is 2 – 5 % of the adult populati...

STUDY OBJECTIVES Identify polysomnographic and demographic factors associated with elevation of nocturnal end-tidal CO2 in patients with obstructive sleep apnea. METHODS Forty-four adult patients with obstructive sleep apnea were selected such that the maximal nocturnal end-tidal CO2 was below 45 mm Hg in 15 studies, between 45 and 50 mm Hg in 14, and above 50 mm Hg in 15. Measurements includ...

BACKGROUND Insufficient sleep duration and obstructive sleep apnea, two common causes of sleep deficiency in adults, can result in excessive sleepiness, a well-recognized cause of motor vehicle crashes, although their contribution to crash risk in the general population remains uncertain. The objective of this study was to evaluate the relation of sleep apnea, sleep duration, and excessive slee...

STUDY OBJECTIVES Current actigraphic algorithms are relatively less accurate in detecting sleep and wake in sleep apnea patients than in people without sleep apnea. In the current study, we attempted to validate a novel automatic algorithm, which was developed for actigraphic studies in normal subjects and patients with obstructive sleep apnea by comparing it on an epoch-by-epoch basis to stand...