Key result
Lower-limb endovascular revascularization did not change exercise-induced muscle microvascular perfusion (3.89 vs 3.19 aU.s-1; p=0.38), but reduced microvascular volume and increased flow velocity.
Why the study?
It was unclear whether maintained microvascular perfusion during submaximal exercise in PAD reflects microvascular impairment or a compensatory response to limited conduit artery flow.
Does lower-limb endovascular revascularization alter skeletal muscle microvascular perfusion during exercise in patients with peripheral artery disease?
Population
9 patients with PAD (60±7 years)
Comparison
Post-revascularization vs pre-revascularization
Design
Pre-post interventional physiological study
Authors
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May normalize microvascular hemodynamics in PAD without changing perfusion response; hypothesis-generating and requires RCTs before practice change.
Observational (n=9)
Does lower-limb endovascular revascularization alter skeletal muscle microvascular perfusion during exercise in patients with peripheral artery disease?
Absolute Event Rate: 3.89% vs 3.19%
p-value: p=0.38
Successful lower-limb endovascular revascularization in patients with PAD normalizes microvascular hemodynamics during exercise by increasing flow velocity and reducing compensatory microvascular volume.
Krastins et al. (2022) conducted an observational in Peripheral artery disease (PAD) (n=9). Lower-limb endovascular revascularization vs. Pre-revascularization was evaluated on Exercise-induced muscle microvascular perfusion response (p=0.38). Lower-limb endovascular revascularization did not change exercise-induced muscle microvascular perfusion (3.89 vs 3.19 aU.s-1; p=0.38), but reduced microvascular volume and increased flow velocity.
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