Maintenance of spontaneous respiration

Hello!  Can I have the group's take on the meaning of the concept, 414641005 |Maintenance of spontaneous respiration (procedure)|?   Would this be appropriate as a subtype of a more general concept of |Anesthesia and/or sedation procedure (procedure)|, or is this rather supportive care?  Else could it be a duplicate to 243141005 |Mechanically assisted spontaneous ventilation (regime/therapy)|, or its potential subtype?  

I appreciate the insight,

Krista Lilly