In vasodilated limbs, what is a possible characteristic of diastolic flow reversal?

In vasodilated limbs, the characteristic of diastolic flow reversal may indeed be absent. This can occur because vasodilation typically leads to an increase in overall blood flow and changes in the hemodynamics of the affected vascular territory. When the resistance decreases due to vasodilation, the pattern of blood flow is altered, and this can result in a steady forward flow throughout the cardiac cycle, especially during diastole.

In this scenario, largely due to the decreased resistance, there may not be the usual observed reversal of flow during diastole, which is often a physiological response to maintain the blood supply to the tissues during the relaxation phase of the heartbeat. Therefore, while in certain conditions (like in stenosis or other obstructions), diastolic flow reversal may be prominent, in a state of vasodilation, this can change and lead to an absence of that phenomenon altogether.