학술논문

Polidocanol foam stability in terms of its association with glycerin.
Document Type
Article
Source
Phlebology. Jun2014, Vol. 29 Issue 5, p304-309. 6p.
Subject
*SCLEROTHERAPY
*DRUG stability
*GLYCERIN
*DESCRIPTIVE statistics
*IN vitro studies
Language
ISSN
0268-3555
Abstract
Objectives: Foam sclerotherapy effectiveness mainly depends on the concentration of the sclerosing agent and foam stability. The objective of this study was to determine if the addition of glycerol at different concentrations contributes to the stability of polidocanol foam. Materials and methods: Control Group: 3% polidocanol. Group 1: polidocanol 3% + glycerin 1.66%. Group 2: polidocanol 3% + glycerin 3.3%. Group 3: polidocanol 3% + Glycerin 5%. Tessari standard method. Five recordings were made for each mixture. Early visual liquefaction time and half liquid time decay were recorded in seconds. Microscopic measurement of the foams. Mixtures surface tension measurement (N/m). Results: Early visual liquefaction: Control Group: 27 (±3.11); Group 1: 67.8 (±6.49); Group 2: 48.6 (±8.2); and Group 3: 35.8 (±4.49). Half-liquid time: Control: 129.2 (±11.00); Group 1: 2 260.4 (±18.99); Group 2: 224.6 (±13.03); and Group 3: 189.2 (±8.52). Bubbles/mm² - diameter-wall thickness: Control: 68-98 µm-7 µm; Group 1: 189-60 µm-9 µm; Group 2: 76-92 µm-12 µm; and Group 3: 49-112 µm-20 µm. Surface tension: Control = 5.54 N/m; Group 1 = 5.45 N/m; Group 2 = 5.35 N/m; and Group 3 = 5.21 N/m. Conclusions: Small amounts of glycerin highly increase the stability and quality of polidocanol foam. This simple chemical method is easily reproducible and applicable. [ABSTRACT FROM AUTHOR]