A Randomized Trial of a Supplemental Alarm for Critically Low Systolic Blood Pressure

BACKGROUND Intraoperative hypotension is associated with complications that might be ameliorated by earlier intervention. We therefore tested the primary hypothesis that a supplemental decision support alert for critically low systolic blood pressure (SBP) decreases the duration of intraoperative hypotension. METHODS We enrolled adults having surgery and anesthetized by attending anesthesiologists or nurse anesthetists under attending supervision. When invasive SBP