Central sleep apnea is thought to be a condition that s associated with a number of different neurologic problems as well as heart or kidney failure. As a sleep technologist it s important for you to know the key differences between central and obstructive apnea so you know how to best treat your patients who may have one or the other disorder. Image Result For Apap Vs Cpap Cpap Sleep Studies Sleep Apnea 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. Central sleep apnea versus obstructive . For more information on what is sleep apnea visit our website. Some estimates claim that approximately 20 of sleep apnea cases are csa but many others believe that number to be much lower. Major differences obstructive. Central sleep apnea occurs when your ...