3. In case of uncontrolled sympathetic response (hypertension and/or tachycardia) to surgery not controlled by IV fentanyl (10 mcg/kg ), rescue intraoperative analgesic/ anaesthetic (e.g.IV morphine, IV diclofenac, IV dexmedetomide, IV propofol, increase in inhalational anaesthetic concentration, etc) or vasoactive agents (e.g.IV Esmolol, IV Nitroglycerin, etc) may be used. This will be noted in the Case record form.