Postoperative hypotension in the post-anesthesia care unit (PACU) is common and linked to adverse outcomes. The Hypotension Prediction Index (HPI) predicts hypotensive events intraoperatively, but its PACU application is unexplored. This study aims to investigate the effectiveness of HPI-guided monitoring in preventing PACU hypotension.
Age ≥ 19 years
Undergoing elective surgery under general anesthesia
Presence of intra-arterial catheter at the end of surgery
Expected PACU stay of ≥ 30 minutes
Immediate postoperative ICU admission
Use of vasopressors during emergence from anesthesia
ASA physical status classification of V
Known contraindications to arterial line placement