Biological behaviour of the bowel mucose in bladder substitution using stapler devices: A two years experience

The largest use of mechanical sutures in urological surgery for their undoubt advantages has pointed out some particular problems about the behavior of the intestinal wall at the level of the mechanical anastomosis. The Authors report a study performed on 45 urinary diversion (including 12 orthotopic ileal bladders). Histological and biological studies on intestinal repair and epitelization show how the neoformed mucosa overlaps the steel stitches, putting them far from the urine. In this way their potency to favour the growth of urinary stoned is very low. At least, the particular shape and disposition of the stitches shooted by GIA stapling devices makes the suture stronger and better vascularized than those performed manually with adsorbable materials.