The investigators plan to determine whether unblinded continuous ward monitoring with the GE Portrait Mobile Monitoring Solution and nursing alerts reduces vital sign abnormalities in patients recovering from major noncardiac surgery.

Primary Aim. Determine whether unblinded continuous ward monitoring with the GE Portrait Mobile Monitoring Solution and nursing alerts reduces vital sign abnormalities in patients recovering from major noncardiac surgery.

Primary hypothesis. Unblinded continuous ward monitoring and nurse alerts reduces vital sign abnormalities during the initial 48 postoperative hours after major non-cardiac surgery while patients remain hospitalized.

Secondary Aim. Determine whether continuous ward saturation, ventilation, and pulse rate monitoring reduces a composite of substantive respiratory and cardiovascular interventions.

Secondary hypothesis. Unblinded continuous ward monitoring increases a composite of clinical interventions for desaturation, hypoventilation, tachypnea, tachycardia, and bradycardia within 48 hours after major non-cardiac surgery.

Inclusion Criteria:

1. Are expected to be admitted to one of the wards equipped with the GE Portrait Mobile Monitoring Solution;
2. Are ≥18 years old;
3. Are designated American Society of Anesthesiologists physical status 1-4;
4. Are scheduled for major noncardiac surgery lasting at least 1.5 hours;
5. Are expected to remain hospitalized at least one postoperative night;
6. Are expected to have general or neuraxial anesthesia.

Exclusion Criteria:

1. Have language, vision, or hearing impairments that might compromise continuous monitoring;
2. Are designated Do Not Resuscitate, hospice, or receiving end of life care;
3. Are expected to have telemetry monitoring;
4. Have previously participated in the study.

Patients who are older than 18 years of age. Patients have a ASA status 1-4. The patients whom had a major noncardiac surgery lasting at least 1.5 hours and are expected to remain hospitalized at least two postoperative nights, and are being admitted to a ward equipped with the GE Portrait Mobile Monitor.

Data will be shared collaboratively upon approval of the Steering Committee and appropriate data-use agreement.

One year after publication of main paper.

Contact PI.