Efficacy and Safety Analysis of Polylauric Alcohol More Stable Foam Versus Ordinary Foam in the Treatment of Head and Neck Venous Malformations

According to the study, the half-life of 1% poly (cinnamyl alcohol-RPol(POL) foam with a liquid-to-gas ratio of 1:4 was 142.8(64.32) seconds, in this study, the half-life of the foam made from 1% POL containing 0.05% hyaluronic acid (HA) was 390.4(613.06) seconds, human blood contains a certain amount of HA, according to the literature reported that 0.05% concentration of HA injected into human blood is safe, so this more stable foam preparation method was patented, and published in international journals.