Prospective evaluation of HSV, Candida spp., and oral bacteria on the severity of oral mucositis in pediatric acute lymphoblastic leukemia
- 20 May 2011
- journal article
- research article
- Published by Springer Science and Business Media LLC in Supportive Care in Cancer
- Vol. 20 (5), 1101-1107
- https://doi.org/10.1007/s00520-011-1190-0
Abstract
Oral mucositis is a common collateral effect among the secondary complications resulting from chemotherapy. The objective of this study was to prospectively evaluate the association of HSV-1, Candida spp., and oral bacteria on the severity of oral mucositis in pediatric acute lymphoblastic leukemia (ALL). Seventy-one prospective patients were included. Analyses of oral microbiota were conducted on days 14 (D14) and 56 (D56) of the Brazilian GBTLI-99 treatment protocol. Herpes simplex virus (HSV) identification was performed by PCR followed by DNA sequencing analysis. Bacteria and fungi identification was obtained by standard microbiological culture tests. HSV-1 was found in 10.37% of individual patient samples. One sample was positive for HSV-4. On D14, we found an association between the severity of mucositis and the presence of HSV (p = 0.0347) and Candida spp. (p = 0.0078). At D56, we found an association between the severity of mucositis and the presence of HSV on D14 (p < 0.0001) and HSV presence (p = 0.0317). The presence of HSV, mainly HSV-1, and Candida spp. was associated with mucositis severity in pediatric ALL. No association could be found between bacterial CFU and severity of mucositis.Keywords
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