Segmental limb pressure
Segmental limb pressure measurement is a noninvasive macrocirculation exam for evaluating blood perfusion in the limbs. It helps detect blockages or narrowing, making it invaluable for assessing peripheral artery disease (PAD) and end-stage PAD — chronic limb-threatening ischemia (CLTI).
Segmental limb pressure with PeriFlux 6000
Segmental limb pressure measurement involves assessing blood pressure at various locations along the limb, such as the thigh, calf, ankle, and toe. Combining it with pulse volume recording (PVR) promotes efficient patient management.
Using inflatable cuffs and laser Doppler probes, this technique measures systolic pressures and compares them across segments. Differences between segments help to pinpoint areas of reduced blood flow caused by arterial blockages or narrowing.
With PeriFlux 6000, it’s possible to measure a total of 12 sites — toe, ankle, calf, above the knee, thigh, and arm on both the left- and right-hand side of the patient — in a single session.
For the lower extremities — toe, ankle, and calf — measurements are calculated using a laser Doppler probe placed as distal as possible, usually on the left and right big toe. For upper extremity measurements — above the knee, thigh, and arm — the laser Doppler probe is placed on a finger on both the left and right hands.
Each pressure measurement is carried out sequentially, in the same way that you would carry out a standard ankle pressure and ABI, or toe pressure and TBI. The PeriFlux 6000 interface guides you through the process.
Interpreting segmental pressure (4-cuff method)
A pressure drop ≥ 20 mmHg [1] between two adjacent segments shows significant stenoses between them.
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Segmental limb pressure measurement with PeriFlux 6000 provides you with robust insights to make confident, informed decisions — whether for initial diagnosis or monitoring treatment outcomes.
To find out more about how to carry out segmental pressure with PeriFlux 6000, its application, or our related products, fill out the form and we will be in touch shortly.
References
- Gornik, H. L., Aronow, H. D., Goodney, P. P., Arya, S., Brewster, L. P., Byrd, L., Chandra, V., Drachman, D. E., Eaves, J. M., Ehrman, J. K., Evans, J. N., Getchius, T. S. D., Gutiérrez, J. A., Hawkins, B. M., Hess, C. N., Ho, K. J., Jones, W. S., Kim, E. S. H., Kinlay, S., Kirksey, L., … Wilkins, L. R. (2024). 2024 ACC/AHA/AACVPR/APMA/ABC/SCAI/SVM/SVN/SVS/SIR/VESS Guideline for the Management of Lower Extremity Peripheral Artery Disease: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines. Circulation, 149(24), e1313–e1410. https://doi.org/10.1161/CIR.0000000000001251