Participants in the underlying GUARDIAN trial (NCT04884802) will be randomized to: 1) routine intraoperative blood pressure management (routine pressure management); or 2) norepinephrine or phenylephrine infusion to maintain intraoperative MAP ≥85 mmHg (tight pressure management). Participants in this sub-study will be additionally randomized to etomidate or propofol for induction of anesthesia.
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