The data (baseline and follow-up) should be collected as part of routine clinical care. In clinical practice, after HMV initiation, the first control examination (follow-up number one) with nocturnal diagnostics should take place within the first 4-8 weeks. Annual follow-up is required, and it is recommended that subsequent control visits should be performed 1-2 times a year. Each patient will be included for 5 years (total duration of the registry).