Effect of continuous skin perfusion pressure (SPP) measurement on examination results

Abstract

Skin perfusion pressure (SPP) measurement has been used for the selection of therapeutic methods and the evaluation of the efficacy of treatment of critical limb ischemia (CLI). The aim of this study is to evaluate whether continuous measurement may affect the SPP results. Twenty-four healthy volunteers (age range, 23 to 67; mean age, 40.8 ± 13.5 years; 11 men, 13 women) were included in this study. The dorsum pedis with the anterior tibial artery and the plantar with the medial plantar artery, which are the dominant blood vessels were selected as the regions for SPP measurement. SPP was measured continuously and intermittently five times. The differences in SPP results were not statistically significant both in the measurement region and methods as determined by one-way layout analysis of variance (p-values ranged between 0.838 and 0.960). The CV values of the SPPs measured in the dorsum pedis and plantar were 7.4% and 8.5%, respectively. A small number of cases that showed high CV values (15% or over) were distributed in each measurement group. On the basis of the results, we found that continuous measurements of SPP using the Nahri MV monitor SRPP may not affect the SPP results. However, other variable factors that may affect the SPP results should be further investigated.