Clinical Efficacy of Successful Angioplasty in Critical Ischemia—A Cohort Study

Tibial artery duplex ultrasound-derived peak systolic velocities may be an objective performance measure after above-knee endovascular therapy for arterial stenosis

“…We have demonstrated that tibial artery PSVs increase after more proximal ipsilateral endovascular intervention, a finding in agreement with that previously reported whereby duplex ultrasound-derived tibial artery PSVs also increased after more proximal endovascular intervention. 18 In addition, we have also shown that tibial PSVs potentially correlate with changes in the ABI and that postprocedure tibial artery PSVs approached PSVs for normal controls. 7 This adds validity to the concept that tibial artery PSVs may be able to serve as an objective performance measure of hemodynamic improvement after an arterial intervention.…”

“…Whether tibial artery PSVs can be used to predict postprocedure initial clinical success or serve as a marker of ongoing clinical success is unclear. Wakassa et al, 18 although demonstrating improvement in selected tibial artery PSVs after endovascular intervention, did not find that immediate (next day) improvement in tibial artery PSVs correlated with "good" or "bad" outcomes 3 years later, with a good result defined as a patient who had no pain and full healing of a wound or amputation site at 3 years. However, clinical outcomes at 3 years can be influenced, as noted before, by many factors other than hemodynamic improvement at 1 day.…”