Perioperative medicine & outcomes
One-minute oscillometric vs. continuous arterial pressure monitoring for hypotension during anesthetic induction in low-risk patients: A randomized noninferiority trial
Authors' conclusion
Induction hypotension was rare, and the area of MAP <65 mmHg was noninferior with oscillometric monitoring at 1-min interval versus continuous arterial pressure monitoring in relatively healthy patients.
Study context
- Population
- Adults scheduled for noncardiac surgery requiring arterial catheterization, two tertiary university hospitalsanalysed
- Participants
- 253 adults
- Comparison
- Continuous monitoring vs 1-min oscillometry
- Continuous monitoringn = 127reference
- 1-min oscillometryn = 126
- Primary endpoint
- Area of mean arterial pressure (MAP) <65 mmHg
- Follow-up
- Initial 15 min of induction
Methodological detailsnoninferiority, bi-centre
- Noninferiority
- Bi-centre
Primary result
As reported in the abstract
Area of MAP <65 mmHg during initial 15 min of induction
- Upper 97.5% confidence limit for the geometric mean ratio
- 1.63
- Noninferiority margin (geometric mean ratio)
- 3.50
- P for noninferiority
- P < 0.001
Further findings
Vasopressor use
P = 0.003
Phenylephrine administration
P = 0.001
Original publication
One-minute oscillometric vs. continuous arterial pressure monitoring for hypotension during anesthetic induction in low-risk patients: A randomized noninferiority trial. J Clin Anesth. Published 20 May 2026. doi:10.
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