Abstract
Introduction Sleep apnea is a sleep disorder characterized by pauses in breathing or instances of shallow or infrequent breathing during sleep. Each pause in breathing, called an apnea, can last for several seconds to several minutes, and may occur, by definition, at least 5 times in an hour. (1)
Highlights
Sleep apnea is a sleep disorder characterized by pauses in breathing or instances of shallow or infrequent breathing during sleep
The results showed that only SDNNi index (P-value= 0.026) and Oxygen Desaturation Index (ODI) index (P-value= 0.001) had significant difference
Due to their results these adnexal generally considered as a screening tool and they found a significant correlation between disease severity and time indexes[19] Narkiewics et al compared three groups of patients with normal controls. they found that the parameters of the LF/HF ratio and HF power and LF power in moderate and severe groups is higher compared to the control group and of LF/HF ratio in these groups is higher in comparison to mild group[21] Gula et al stated that the LF/HF ratio in patients with moderate OSAS is even higher than the severe and the control groups[22]
Summary
Sleep apnea is a sleep disorder characterized by pauses in breathing or instances of shallow or infrequent breathing during sleep. Each pause in breathing, called an apnea, can last for several seconds to several minutes, and may occur, by definition, at least 5 times in an hour[1]. Apnea syndrome (OSAS) during sleep is a common disorder that suffered about 7 percent of comminutes and this syndrome is more common in men than women[4] Symptoms of this syndrome are GHARABAGHI et al, Biomed. Poor sleep and sometimes severe snoring and daytime sleepiness and fatigue. Complications of this syndrome include depression, lack of glycemic control, heart attacks, arrhythmias, and cardiovascular complications such as high blood pressure[5,9]. In 1981, Akselrod et al proved the relationship between HRV (Heart Rate Variability) and autonomic nervous system[10]
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