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  • Title: Dental health and viridans streptococcal bacteremia in allogeneic hematopoietic stem cell transplant recipients.
    Author: Graber CJ, de Almeida KN, Atkinson JC, Javaheri D, Fukuda CD, Gill VJ, Barrett AJ, Bennett JE.
    Journal: Bone Marrow Transplant; 2001 Mar; 27(5):537-42. PubMed ID: 11313689.
    Abstract:
    Viridans streptococci were the most common cause of bacteremia in 61 consecutive myeloablative allogeneic hematopoietic stem cell transplant (HSCT) recipients, occurring in 19 of 31 bacteremic patients (61%) during the period of post-transplant neutropenia. Seven of the 19 had more than one viridans streptococcus in the same blood culture. Twenty isolates from 15 patients were Streptococcus mitis. Most viridans streptococci were resistant to norfloxacin, used routinely for prophylaxis. Comparison of the 19 patients with viridans streptococcal bacteremia with a contemporaneous group of 23 allogeneic HSCT recipients with fever and neutropenia but no identified focus of infection found that patients with viridans streptococcal bacteremia were more likely to have severe intraoral pathology while neutropenic (26% vs 0%) and slightly shorter interval between the last dental procedure and the onset of neutropenia (11 vs 14 days). Poor underlying dental health and the use of norfloxacin thus appear to predispose to viridans streptococcal bacteremia.
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