Below are contraindications of intravesical BCG, listed in a urology book in a library. It does not include colonoscopy. I actually have had colonoscopy a few times in the past and the doctor got rid of polyps. I was sedated but not with general anesthesia. So, as Allan and Jack said, no procedures in colonoscopy I had indicate contraindications for intravesical BCG treatment. Best
Strong contraindications
Immunosuppressed and immunocompromised patients
Immediately after transurethral resection on the basis of the risk
of intravasation and septic death
Personal history of BCG sepsis
Gross hematuria (intravasation risk)
Traumatic catheterization (intravasation risk)
Total incontinence (patient will not retain agent)
Medium contraindications
Urinary tract infection (intravasation risk)
Liver disease (precludes treatment with isoniazid if sepsis
occurs)
Personal history of tuberculosis (risk theorized but unknown)
Poor overall performance status
Advanced age
Potential contraindications but with no or insufficient data
Patients with prosthetic materials have not been shown to have
increased risk of infectious or other complications in limited
literature (Rosevear et al., 2010)
Ureteral reflux
Anti–tumor necrosis factor medications (theoretically predispose
to BCG sepsis)
