Influence of sling material on inflammation and collagen deposit in an animal model.

Aim: Compare inflammation and collagen production induced by four sling materials in female rats.

Methods: Adult female rats (n=144) were submitted to a urinary incontinence model and neutering. After four weeks they were randomized in 5 groups: Sham; autologous sling; Marlex; swine intestinal submucosa (SIS), and polypropylene mesh (TVT).