Simple blood pressure checks every minute may be as good as continuous monitoring during anesthesia
NCT ID NCT05792436
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study tested whether checking blood pressure every minute with a standard arm cuff is as effective as continuous monitoring through an artery line during the start of anesthesia. 258 adults having non-cardiac surgery took part. The goal was to see if the simpler method could catch dangerous drops in blood pressure just as well.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- 1-min interval oscillometric blood pressure monitoring device
- What this could lead to
- If successful, this could show that a simpler, less invasive blood pressure check every minute is just as good as continuous monitoring during anesthesia induction.
- What could go wrong
- This is a completed trial with 258 patients, but it only looks at non-cardiac surgeries and may not apply to all patients or procedures. The simpler method might still miss rapid blood pressure drops.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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258 people
The number who actually took part.
- Started
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Apr 2023
- Finished
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Aug 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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19 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adult patients aged 19 or older undergoing scheduled non-cardiac surgery with general anesthesia and continuous invasive arterial blood pressure monitoring via the radial artery Exclusion Criteria: * Arterial access is clinically necessary before induction of anesthesia (e.g., moderate or higher degree of aortic stenosis, moderate or higher degree of heart failure, coronary artery disease requiring revascularization, intracranial aneurysm with a significant risk of rupture, etc.) * Emergency surgery * American Society of Anesthesiologists (ASA) physical status 5 or 6 * Arterial access is required in a different artery other than the radial artery (e.g., the femoral artery) * Electrocardiogram other than sinus rhythm * Refusal to participate in the study
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Korea University Guro Hospital
Seoul, South Korea
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Seoul National University Hospital
Seoul, Seoul, 03080, South Korea
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