While the intraoperative period is safe, the postoperative period is not. About 4,000 deaths per year occur in the first 30 days after non-cardiac surgery (Lancet 2019;393:401). Most cardio-respiratory events happen while patients are recovering from surgery during the transition from postanesthesia care unit to the general care floor and beyond. Monitoring technology that was once limited to a tethered non-invasive blood pressure cuff – and some basic estimates of hemodynamics and respiration – has now evolved to be innovative, smarter, and more portable.

When considering novel postoperative technology, we need to be mindful of the perioperative continuum that begins preoperatively but eventually includes the postoperative phase. The immense and fascinating progress in recent years in information and communication technology, including mobile health (m-Health) apps and wearable wireless remote monitoring equipment, may have outpaced our current perioperative concepts, infrastructure, and environment. The latter will increasingly include pre- and...

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