My father , who is 59 y.o., suffered ischaemic stroke 4 years ago. He hasn't fully recovered since then. Left hand is disabled. Now he is about to undergo laporoscopic surgery to remove stones in the common bile duct and to remove the gall bladder itself. What are the risks of general anesthesia for a patient? How is laporoscopic surgery risky for a patient? Is there an alternate type of anaesthesia that reduces risks of complication? Thanks.