What are the causes of sleep center apnea?

Many causes. There are many causes of csa. Commonly, patients with neurological problems may have csa. Specifically with stroke patients. There is also a large amount of patients with congestive heart failure that have csa. It may also be idiopathic, meaning that there is not clear reason why it develops.
Central Apnea. Usually caused by increased CPAP pressure or over treated apnea, congestive heart failure or cardiac induced issues, stroke etc.