Perioperative medicine & outcomes
Intervals for Oscillometric Arterial Pressure Monitoring during Noncardiac Surgery: The “2.5-Minute versus 5-Minute” Randomized Clinical Trial
Primary resultResult — go to the resultEstimated location shift −1.40 × 10 −5 mmHg 95% CI −6.64 × 10 −5 to 2.93 × 10 −6Authors' conclusion
Although oscillometric arterial pressure monitoring at 2.5-min intervals-compared to 5-min intervals-did not reduce the time-weighted average MAP less than 65 mmHg, the authors cannot exclude that monitoring at 2.5-min intervals helps reduce profound hypotension.
Study context
- Population
- Noncardiac surgery patients with GArandomised
- Participants
- 264 patients
- Comparison
- Oscillometric arterial pressure monitoring at 2.5-min vs 5-min intervals
- 2.5-minn = 132
- 5-minn = 132reference
- Primary endpoint
- Intraoperative hypotension: time-weighted average mean arterial pressure (MAP) <65 mmHg during surgery (blinded continuous finger-cuff monitoring)
Methodological detailssingle-centre, blinded continuous finger-cuff outcome assessment
- Single-centre
- Blinded continuous finger-cuff outcome assessment
Primary result
As reported in the abstract
Estimated location shift
−1.40 × 10 −5 mmHg
95% CI −6.64 × 10 −5 to 2.93 × 10 −6
P = 0.27
By group
2.5-min
0.00
median · IQR 0.00–0.04 · mmHg
5-min
0.00
median · IQR 0.00–0.21 · mmHg
Secondary outcomes
≥1 1-min episode of MAP <50 mmHg
P = 0.24
Time-weighted cumulative norepinephrine indexed to body weight during surgery
P = 0.40
Original publication
Intervals for Oscillometric Arterial Pressure Monitoring during Noncardiac Surgery: The “2.5-Minute versus 5-Minute” Randomized Clinical Trial. Anesthesiology. Published 8 May 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →