In designing Operating Theatre, once must look at the importance of accesses to the surgeon and nurses in terms of electrical power, light intensity, medical gases, etc. Light intensity must be strong enough as to provide the correct color temperature, intensity, focus (effectively suppose to be shadowless) and penetration, etc.
You will notice that two gas pendant arranged diagonally to provide gases for the anaesthetic unit. The gas pendant also serves as an electrical bank for all surgical equipment. Additional electrical sockets can be found on the walls.
The other aspect of design is the ventilation system, the number of air exchanges. Loading factors for the ceiling to take the load of the surgical lights, gas pendant, monitor screens, cameras, etc need to be factor in before the start of the implementation.