Treatment of Complicated Anal Fistula by an Endofistular Polyurethane-Sponge Vacuum Therapy: A Pilot Study

BACKGROUND:Treatment of supra- and transsphincteric anal fistulas remains a clinical challenge because current treatment results are variable and potentially endanger sphincter function.OBJECTIVE:Based on positive results of endoluminal polyurethane-sponge vacuum therapy in the upper and lower GI tr