Longman Dictionary of Contemporary English
preoperative
adjective
EXAMPLES FROM CORPUS
▪ After preoperative radiotherapy the percentage of aneuploid tumours decreased significantly, from 71% to 47%.
▪ In two randomised prospective studies, however, no advantage of preoperative radiation therapy could be shown.
▪ Rigorous control procedures established that it was neither an artefact of nutritional compromise nor of preoperative bowel preparatory protocols.
▪ Survival of patients was not improved by preoperative radiotherapy, but was significantly associated with a radical tumour resection.
▪ Talking with professionals involved in your care can soothe preoperative jitters.
▪ The preoperative radiotherapy did not result in a significant prolongation of survival time.
▪ These univariate survival analyses were also separately performed for the group of patients with preoperative radiotherapy and the group with surgery only.
▪ This also applied to the subgroup with a curative tumour resection and is in accordance with other studies that used preoperative radiotherapy.
Wiktionary
preoperative
a. happening before surgery
WordNet
preoperative
adj. happening or done before and in preparation for a surgical operation
Usage examples of "preoperative".
There were different surgeons, mostly different anesthetists, a variety of anesthetic agents, a significant variation of preoperative and postoperative drugs, and differing locations in the hospital.
He'd seen her briefly twice before when she was having her preoperative X rays, and Philips was shocked how different she looked now.