The main types of sleep apnea are. Causes and symptoms differ for obstructive sleep apnea in children and central sleep apnea. If You Have Been Diagnosed With Sleep Apnea Talk To Your Doctor Csa is usually due to an instability in the body s feedback mechanisms that control respiration. Sleep apnea centre . In fact a sleep apnea patient s oxygen saturation levels can drop to as low as 80 while they are sleeping. 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. Sleep apnea is a potentially serious sleep disorder in which breathing repeatedly stops and starts. Obstructive sleep apnea in adults is considered a sleep related breathing disorder. If you snore loudly and feel tired even after a full night s sleep you might have sleep apnea. Hong kong s...