Compensatory response of the radial and ulnar arteries after radial artery cannulation in hypertensive patients
Authors' conclusion
The radial and ulnar arteries in hypertensive patients may lack a compensatory response to radial artery cannulation during general anesthesia.
Study context
- Population
- Patients requiring arterial cannulation under GA
- Participants
- 99 vs 99
- Exposure
- Normotensive vs Hypertensive
- Normotensiven = 99reference
- Hypertensiven = 99
- Outcome
- Vascular reactivity of radial and ulnar arteries (Doppler ID, RI, mean volume flow; Laser speckle contrast imaging (LSCI) finger perfusion)
- Follow-up
- Five time points
Main finding
As reported in the abstract
Radial and ulnar artery reactivity after cannulation
- Radial artery: less increase in inner diameter (ID) and less decrease in resistance index (RI) in Hypertensive vs Normotensive
- Radial mean volume flow (MVF) increase less pronounced in Hypertensive
- Ulnar artery: equivalent ID changes; greater RI decrease and MVF increase in Normotensive
- Thumb perfusion decreased post-cannulation in both groups; less robust recovery in Hypertensive
- Little finger perfusion increased in both groups; lower increase in Hypertensive
Observational data: associations, not effects.
Safety
Vasospasm
- Higher incidence in Hypertensive vs Normotensive
Original publication
Compensatory response of the radial and ulnar arteries after radial artery cannulation in hypertensive patients. J Clin Anesth. Published 9 October 2024. doi:10.
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