Obstructive Sleep Apnea (OSA)
It is also known as obstructive sleep apnea syndrome -- occurs when there are repeated episodes of complete or partial blockage of the upper airway during sleep. During an obstructive sleep apnea episode, the diaphragm and chest muscles work harder to open the obstructed airway and pull air into the lungs. Breathing usually resumes with a loud gasp, snort, or body jerk. These episodes can interfere with sound sleep.
They can also reduce the flow of oxygen to vital organs and cause irregular heart rhythms. "Common signs of OSA include unexplained daytime sleepiness, restless sleep, and loud snoring (with periods of silence followed by gasps).Treatments Avoiding alcohol and smoking is recommended, as is avoiding medications that relax the central nervous system (for example, sedatives and muscle relaxants). Weight loss is recommended in those who are overweight. Continuous positive airway pressure and mandibular advancement devices are often used.
when the distribution was normal, the mean and standard deviation was reported. Instead, the median and the percentiles 25–75% were used if the distribution was not normal. The degree of association among the manual ApneaLink apnea/hypopnea index variables (AHI-m) and the respiratory disturbance (RDI) from polysomnography was evaluated by the Pearson correlation coefficient (r).