preoperative
adjective
occurring or related to the period or preparations before a surgical operation.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The researchers gave the drug to patients preoperatively to see how the medicine affected the tumor’s “micro-environment,” not because they expected to see a clinical benefit, he said.
From Washington Post ● Feb. 11, 2019