Central sleep apnea (CSA) or central sleep apnea syndrome (CSAS) is a sleep-related disorder in which the effort to breathe is diminished or absent, typically for 10 to 30 seconds either intermittently or in cycles, and is usually associated with a reduction in blood oxygen saturation.
Symptoms The most common symptom of central sleep apnea is short periods during sleep when breathing stops. Some people exhibit very shallow breathing instead of actually stopping breathing. You may wake up feeling short of breath. Treatment Several different treatments aimed at central sleep apnea include positive airway pressure, adaptive servo ventilation (ASV), oxygen, added dead space, carbon dioxide inhalation, and overdrive atrial pacing. Continuous positive airway pressure CPAP improves cardiac function in patients with congestive heart failure and CSB-CSA.Bilevel positive airway pressure Bilevel positive airway pressure (BIPAP) is effective for treating patients with hypercapnic central sleep apnea (associated with hypoventilation).
Statistics Obstructive sleep apnea syndrome (OSAS) is the most frequent sleep-related breathing disorder (SRBD), with an observed prevalence of 2% to 4% in middle-aged adults and up to 20% in the elderly.Characterized by repeated collapse of the pharynx during sleep, OSAS leads to oxygen desaturation, fragmented sleep, daytime sleepiness, and cardiovascular complications. Hypertension, coronary heart disease, and chronic heart failure are all significantly associated with OSAS. More than age, obesity has been found to be the major risk factor for OSAS occurrence, with a 10% weight gain beyond the normal range being associated with an increased risk of developing this disorder