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2.5 Versus 5 Minutes Trial

Recruiting
45 years of age
Both
Phase N/A

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Overview

This is a randomized trial investigating the effect of oscillometric blood pressure monitoring at 2.5-minute intervals - compared to 5-minute intervals - on intraoperative hypotension. Specifically, the investigators will test the primary hypothesis that oscillometric blood pressure monitoring at 2.5-minute intervals - compared to 5-minute intervals - reduces the time-weighted average mean arterial pressure below 65 mmHg in patients having non-cardiac surgery.

Eligibility

Inclusion Criteria:

  • ≥45 years
  • scheduled for elective non-cardiac surgery under general anesthesia
  • planned oscillometric blood pressure monitoring with an upper-arm cuff
  • American Society of Anesthesiologists physical status class II or higher

Exclusion Criteria:

  • emergency surgery
  • arm or shoulder surgery
  • pregnancy
  • preoperative blood pressure differences between the right and left arm of more than 20 mmHg
  • intraoperative invasive blood pressure monitoring
  • previous preoperative peripheral nerve injury (such as diabetic neuropathy, carpal tunnel syndrome, or cervical radiculopathy)
  • contraindication for continuous finger-cuff blood pressure monitoring (e.g., Raynaud's disease, arterial-venous shunts, or cardiac assist devices)

Study details

Hypotension

NCT06314074

Universitätsklinikum Hamburg-Eppendorf

15 April 2024

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