They have also been used in nonhemostatic applications, such as repair of tissue defects, anastomotic leakage, and closure of colovesical fistula
Use of methylene blue in suspected colovesical fistula
Two (17%) patients with colovesical fistula underwent emergency surgery due to deranged physiological parametres (severe sepsis) and underwent diverting transverse colostomy because dense inflammatory adhesions in the pelvis and to shorten the operative time.
The indications for emergency surgery were; 20 (78%) patients with perforation leading to generalised peritonitis, 2 (4%) patients with severe sepsis secondary to intra-abdominal abscess, 2 (4%) each with colovesical fistula and stricture having multi-organ dysfunction on presentation.
Accuracy of computerized tomography in diagnosis of colovesical fistula
secondary to diverticular disease.
Congenital colovesical fistula
and atresia ani et racti in a lamb.
A colovesical fistula
can cause a severe urinary tract infection and requires surgery to remove the fistula.
A computerized tomographic (CT) scan of her abdomen showed extensive diverticulosis of the sigmoid colon, a colovesical fistula
with gas in the bladder and the allograft renal pelvis (Figs.
ACT scan can reveal pericolonic inflammation, wall thickening, the presence of an abscess, and air in the bladder that is diagnostic of a colovesical fistula
Vaginal fistula, colovesical fistula
(particularly due to diverticular disease), Crohn's disease or carcinoma of the colon or bladder, instrumentation and after trauma are other causes of gas production, and differential diagnosis should be made with emphysematous cystitis.