Infectious complications of endoscopic procedures in bone marrow transplant recipients

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Abstract
The prevalence of clinically relevant bacteremia after endoscopic procedures in bone marrow transplant recipients was assessed retrospectively. Bacteremia, within 24 hr of procedure, was defined as positive blood cultures, while hypotension and temperature greater than 38° C were taken as possible indicators of bacteremia. Sixty-seven procedures were performed in 53 endoscopic sessions (upper endoscopy 37, flexible sigmoidoscopy 7, upper endoscopy + flexible sigmoidoscopy 8, colonoscopy 1). Twenty-five endoscopic sessions were performed in patients receiving broad-spectrum antibiotics and 28 sessions in patients not receiving antibiotics. Both groups were comparable with respect to patient characteristics, procedures performed, and immune status. No patient in either group developed hypotension. One patient developed fever after flexible sigmoidoscopy; no source of fever was identified. We conclude that: (1) there were no episodes of clinically relevant bacteremia attributable to endoscopic procedures, and (2) not all bone marrow transplant recipients require routine antibiotic prophylaxis prior to endoscopic procedures.