what is the nowadays scope for operation theatre...

It divides into different aspect 
Preoperative visit such S peripheral nerve block and intravenous pain medication that include narcotic 
Intraoperative monieter the patient provide
Suuplement of oxygen 
And use of three common routes 
General anesthesia 
Regeneoal anesthesia 
Monitered anesthesia care 
General anesthesia rendering patient unconscious and established secure airway with any of different tube device 
Or by mechanical ventilation 
And Regeneoal include inject local anesthetic by spinal epidural or peripheral nerve block procedure 
Providing oxygen iv fluid medication and blood product
Best procedures used 
Technical latyngoscope 
Superstar medical equipment