Comparison of 2 different barrier solutions (icodextrin 4% vs. dextran 70) used as adhesion-prevention agents after microsurgical adnexal operations

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Abstract

In this prospective randomized clinical trial, 2 different barrier solutions (icodextrin 4% vs. dextran 70) were compared with regard to their antiadhesive properties, their tolerance and their persistence in situ. To this end, 45 patients suffering from infertility due to adnexal adhesions with indication for microsurgical adhesiolysis were randomized to 2 treatment groups. In advance of abdominal closure, patients were randomized to receive either 1,000 mL of icodextrin 4% solution (n = 23) or 300 mL dextran 70 instillation (n = 22). Serial transvaginal ultrasonographic scans were conducted on days 1, 3, 5 and 7 after surgery to measure the remaining volumes of each barrier solution. Seven days after initial surgery, a second-look laparoscopy was performed; remaining fluids were aspirated and measured and adhesions were rescored (final adhesion score). Differences between treatment groups were not significant (p = 0.775). With regard to their tolerance, the advantages of the icodextrin 4% solution became obvious, as edema of vulva and abdomen occurred more frequently after dextran 70 instillation.

In conclusion, microsurgical adhesiolysis and application of icodextrin 4% solution or dextran 70 as adhesion-prevention agent resulted in reduction of incidence, extent and severity of adhesions. Both solutions were well tolerated.

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