Twenty-eight patients had a total of 168 blood cultures before and at regular intervals during colonoscopy. No bacteremia was found. Based on our results and other reports, we recommend antibiotic prophylaxis during colonoscopy only for those patients with prosthetic heart valves and for those with valvular heart disease who also have advanced liver disease.
Suarez, A.; Schuman, B.; Quinn, E.; and Neblett, T.
"Clinical Notes: Bacteremia Associated with Colonoscopy,"
Henry Ford Hospital Medical Journal
: Vol. 26
Available at: https://scholarlycommons.henryford.com/hfhmedjournal/vol26/iss2/11