, Volume 87, Issue 10, pp 837-845

Multivariate analysis of factors influencing oral mucositis in allogeneic hematopoietic stem cell transplantation

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Abstract

Little information is available regarding the effect of oral intervention on the outcome of hematopoietic stem cell transplantation (HSCT). We retrospectively analyzed the incidence of oral mucositis after allogeneic HSCT with or without oral intervention among 96 consecutive patients in our hospital between January 1988 and March 2006. We combined two oral intervention strategies: cryotherapy and oral health care. The former was applied beginning in 2003 for patients being treated with melphalan, and the latter, which was the study’s main strategy, was applied to all HSCT recipients beginning in 2004. Oral mucositis was evaluated according to NCI CTCAE v3.0. The incidence of oral mucositis was 30.9% (17/55) in reduced-intensity stem cell transplantation (RIST), which was significantly lower than the 90.2% (37/41) in conventional stem cell transplantation (CST; P < 0.001). Among these 96 patients, severe oral mucositis was observed in 19 (46.3%) CST cases and in 6 (10.9%) RIST cases (P < 0.001). The occurrence of oral mucositis apparently decreased after oral health care instructions were given. Multiple logistic analysis revealed that the conditioning regimen and oral health care were independent risk factors for the incidence of oral mucositis. The cryotherapy did not exert enough potency to prevent oral mucositis in patients who had undergone CST or RIST. We concluded that oral health care improved tissue damage due to an overall upgrade in oral hygiene during chemotherapy.