preoperatively


pre·op·er·a·tive

P0528500 (prē-ŏp′ər-ə-tĭv, -ŏp′rə-, -ŏp′ə-rā′-)adj. Occurring before surgery: preoperative preparations.
pre·op′er·a·tive·ly adv.

preoperatively

(priːˈɒpərətɪvlɪ) adv (Surgery) in a preoperative context