Ultrasonography for estimation of the microcirculation

NewsBot · Oct 2, 2015

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Efficacy of Ultrasonography at the Ankle Level for Estimation of Pedal Microcirculation.
Sekiya N et al
Ann Vasc Dis. 2015;8(3):198-202

Chronic wounds due to diabetes mellitus (DM) and/or peripheral arterial disease (PAD) often occur in the pedal region peripheral to the ankle. To predict wound healing potential of limb ulcers, skin perfusion pressure (SPP) and transcutaneous oxygen tension (TcPO2) have recently become popular as the parameters that reflect skin microcirculation. On the other hand, ultrasonography for the macrocirculatory vessels has already prevailed widely as the standard vascular investigation. The skin microcirculation peripheral to the ankle probably depends on the macrocirculatory blood flow at the ankle level. Thus, this study aims to estimate whether the blood flow of the anterior tibial artery (ATA) and the posterior tibial artery, at the ankle level, reflect the values of SPP and TcPO2 on the foot. The protocol enrolled 88 patients (122 limbs) with foot ulcers due to DM and/or PAD. The statistical analysis revealed that the sum of blood flow of the ATA and the PTA (posterior tibial artery), at the ankle level, significantly correlated with SPP on the foot. The findings support the availability of conventional ultrasonographic investigation to estimate microcirculation of the foot crucial for wound healing.
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