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|Titolo:||Cidofovir for BK virus-associated hemorrhagic cystitis: a retrospective study.|
|Autori interni:||CESARO, SIMONE|
|Data di pubblicazione:||2009|
|Rivista:||CLINICAL INFECTIOUS DISEASES|
|Abstract:||BACKGROUND: BK virus-associated hemorrhagic cystitis (BKV-HC) is a severe complication after allogeneic hematopoietic stem cell transplantation (HSCT), but antiviral treatment for this condition has not been evaluated. METHODS: We conducted a retrospective survey on the safety and outcome of cidofovir treatment for patients with BKV-HC in centers affiliated with the European Group for Blood and Marrow Transplantation. RESULTS: From 1 April 2004 to 31 December 2007, 62 patients received a diagnosis of BKV-HC after a median interval of 35 days after HSCT (range, 3-577 days).Fifty-seven patients (92%) received intravenous cidofovir, whereas 5 patients received cidofovir intravesically. Complete response (CR) was recorded in 38 (67%) of 57 patients with HC treated with intravenous cidofovir, whereas partial response (PR) was documented in 7 patients (12%). CR was documented in 3 patients and PR in 1 patient with HC treated with intravesical cidofovir. A reduction of 1-3 logs in BKV load was documented in 8 of the 10 patients achieving CR. Mild-to-moderate toxic effects were recorded in 18 of 57 patients who received intravenous cidofovir administration. In a multivariate analysis, the factors significantly associated with response to cidofovir were the stem cell source (P = .01) and the use of total body irradiation (P = .03). After a median follow-up of 287 days, overall survival and total treatment-related mortality rates were 63% and 40% for patients achieving CR, compared with 14% and 72% for patients with PR or no response to cidofovir, respectively (P = .001 and P = .001, respectively).CONCLUSIONS: Cidofovir may be a potentially effectivetherapy for BKV-HC, but evidence supporting its use requires randomized controlled trials.|
|Appare nelle tipologie:||01.01 Articolo in Rivista|
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