Regeneration of peritoneum using amniotic membrane to prevent XXXX .

@entity32 @entity86 @entity35 @entity1744 @entity130
BACKGROUND/AIMS: Adhesions following intraperitoneal surgery are frequent causes of @entity1744 . Attempts to prevent @entity86 have mostly proven disappointing clinically. Currently used by ophthalmologists in ocular surface disorders, amniotic membrane transplantation can reduce @entity32 and promote re-epithelization. We used amniotic membrane for facilitating peritoneal regeneration and prevention of adhesions with surgical @entity130 . METHODOLOGY: 20 @entity35 were randomized in equal number into treatment or control groups. Seven days after operation, the incidence and severity of adhesions were evaluated. Histologic and immunohistochemical analyses were examined at 1, 4, 10 weeks after operation. RESULTS: While severe adhesions were observed after 1 week between the cecum and surrounding organs in the control group, adhesion formation was significantly reduced in the amniotic membrane group. Histologic examination demonstrated that free-floating myofibroblasts in the peritoneal cavity attached to surfaces of amniotic membrane grafts to form a layered structure. Free-floating mesothelial cells were incorporated into the regenerating mesothelium on the myofibroblast layer in 4 weeks, while implanted amniotic membrane grafts were absorbed by 10 weeks. In the amniotic membrane group the cecum appeared nearly normal. CONCLUSIONS: Amniotic membrane grafts reduced intraperitoneal adhesions after surgical @entity130 , were well absorbed, and served as a substrate for regenerating mesothelium.
