A 46 years old male patient with hyperthyroidism is presented with atrial fibrillation. He is on tab Methyl Carbimazole 20 mg TDS and on tab beta blocker. Now patient is having acute appendicitis he has to undergo surgery.

His TSH is 0.04 and 2 d echo is normal so guide me for one operative fitness. What is the Pre operative fitness for hyperthyroidism with atrial fibrillation Thanks