Sigmoidovesical Fistulæ

Entero‐vesicle Fistula: An Analysis of Thirty‐four Cases*†

“…Inflammatory : Inflammatory lesions tend to predominate as the cause of entero‐vesicle fistula (8) accounting, according to Kellogg (1), for approximately 50 per cent of these cases. They have their origin ordinarily in a chronic diverticulitis of the sigmoid colon (9, 1).…”

“…It is most apt to develop in persons beyond middle life (10). Constipation with flatulence, which causes an increase in bowel pressure and subsequent bowel wall distention, are definitely etiological factors (8, 11). In some cases there is unquestionably a congenital weakness present in the bowel wall gradually leading to the formation of diverticula, which, because of their proneness to harbor infection, may easily lead to inflammatory processes and secondarily involve the bladder by perforation (6).…”