Abstract
We investigated the relationship between the Doppler blood velocity pattern in peroneal and posterior tibial arteries (PER and PTA) and the skin perfusion pressure (SPP) in the dorsal region in 27 patients with peripheral arterial disease in whom the Doppler signal in anterior tibial artery (ATA) was not detected at the ankle level. SPP in the dorsal region was significantly lower in patients representing waveform type C than those with type A and B in PER and PTA. SPP in the dorsal region significantly correlated with resistance index (R.I.) in PER and PTA. Subgroup analysis revealed that Doppler waveform and R.I. in PER more precisely reflect the SPP in the dorsal region than those in PTA in patients with anterograde perfusion in the dorsal artery. In patients with retrograde perfusion in the dorsal artery, Doppler waveform and R.I. in PER and PTA similarly reflect the dorsal SPP. These results suggest that analysis of Doppler blood velocity pattern in PER and PTA may be useful to estimate the SPP in the dorsal region in patients with ATA occlusion. In the case of anterograde perfusion in the dorsal artery, PER may be more suitable to evaluate the dorsal ischemia compared with PTA.
