Re: Who do you think should involve in the management review?
I am not familiar with ISO 13485, but if the clause states "top management", then top management it should be (or their designate if they are unable to attend).
Typically, you want people there who have the capability, ability and authority to make decisions in regards to recommendations for improvement, resource needs, potential changes to the system, etc. In other words, while the janitor may know everything that is going on at the site, s/he is not in a position to implement change/improvement. The general manager, however, is.