HPI Effect in Robotic Urological Surgery on AKI

Effect of Use of Hypotension Prediction System in Prevention of Postoperative Acute Kidney Injury in Robotic-assisted Urologic Surgery

It is a single-center randomized controlled trial that aims to figure out the effect of the hypotension prediction index (HPI) on the prevention of acute kidney injury (AKI) after robot-assisted urological surgery. The primary hypothesis is that HPI software guidance prevents postoperative AKI by reducing the duration and severity of intraoperative hypotension (IOH).

Inclusion Criteria:

• Age ≧ 19
• Patients undergoing robot-assisted urological surgery

Exclusion Criteria:

• Unable to voluntarily give consent
• Unable to use both radial arteries due to such reasons: prior surgery on the radial artery, breast cancer history with axillary LN dissection, AV fistula for renal replacement therapy, or abnormal Allen's test.