What question did this study set out to answer?

This research aimed to investigate how venous occlusion affects arterial diameter and flow velocity during plethysmography.

May 1, 1989Journal of Applied Physiology

Venous occlusion plethysmography reduces arterial diameter and flow velocity

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Authors

WHWilliam R. HiattVascular Medicine SHSzu‐Wei HuangChang Gung University JRJudith G. RegensteinerPreventive Cardiology

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Implication

Randomized trial shows that venous occlusion reduces arterial diameter and flow velocity in normal subjects, implying caution in peripheral blood flow measurement.

Key Points

This research aimed to investigate how venous occlusion affects arterial diameter and flow velocity during plethysmography.
Measured arterial diameter and velocity before and after applying cuff pressure in normal subjects.
Studied effects of different cuff pressures (0 to 40 mmHg) on the superficial femoral artery and common femoral artery.
Utilized Doppler velocity measurements to compare arterial inflow against plethysmograph measurements.
Systolic diameter of the superficial femoral artery decreased from 7.7 mm to 5.6 mm (P < 0.05) at 40 mmHg pressure.
Mean velocity in the common femoral artery reduced by 38%, and by 47% in the popliteal artery at 40 mmHg.
Cuff inflation on the arm reduced mean velocity in radial artery by up to 33% at increased pressures.

Cite This Study

Hiatt et al. (1989) studied this question.

synapsesocial.com/papers/6a20357760a84f4b7dd8dfeb https://doi.org/10.1152/jappl.1989.66.5.2239

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Implication

Randomized trial shows that venous occlusion reduces arterial diameter and flow velocity in normal subjects, implying caution in peripheral blood flow measurement.

Venous occlusion plethysmography reduces arterial diameter and flow velocity

Discussion

Member takes

Implication

Key Points

Cite This Study

Venous occlusion plethysmography reduces arterial diameter and flow velocity

Discussion

Member takes

Implication

Key Points

Cite This Study

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