A study comparing the two USG guided approaches (superficial and deep) of serratus anterior plane block in providing post operative analgesia for patients undergoing unilateral modified radical mastectomy.

To compare the efficacy of the two ultrasound guided approaches superficial and deep to the serratus anterior plane block in the post operative analgesia in patients undergoing modified radical mastectomy, with 20 mL of 0.375% ropivacaine with 4 mg inj dexamethasone. The pain score is analysed in immediate post operative period, 1 st , 2nd, 4 th, 6th, 12 th, 24 th hour and the post operative analgesia and its duration from the time of block performed and its subsequent requirement of analgesia are analysed. And the final output of the efficacy of the two blocks and compared.