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- Allander, T, et al.
(författare)
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Human bocavirus and acute wheezing in children
- 2007
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Ingår i: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America. - : Oxford University Press (OUP). - 1537-6591. ; 44:7, s. 904-910
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Tidskriftsartikel (refereegranskat)
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- Cesaro, Simone, et al.
(författare)
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Cidofovir for BK Virus-Associated Hemorrhagic Cystitis: A Retrospective Study
- 2009
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Ingår i: Clinical Infectious Diseases. - : Oxford University Press (OUP). - 1537-6591 .- 1058-4838. ; 49:2, s. 233-240
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Tidskriftsartikel (refereegranskat)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 (Pp. 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 effective therapy for BKV-HC, but evidence supporting its use requires randomized controlled trials.
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- Cordonnier, Catherine, et al.
(författare)
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Randomized study of early versus late immunization with pneumococcal conjugate vaccine after allogeneic stem cell transplantation
- 2009
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Ingår i: Clinical Infectious Diseases. - : Oxford University Press (OUP). - 1058-4838 .- 1537-6591. ; 48:10, s. 1392-1401
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Invasive pneumococcal disease is a life-threatening complication after allogeneic stem cell transplantation, and at least 20% of cases occur within 1 year after transplantation. The 23-valent pneumococcal polysaccharide vaccine (PPV23) has limited efficacy, especially during the first year after transplantation. The immune response to the conjugated vaccines is expected to be better than that to the polysaccharide vaccine, but the optimal timing of vaccination is not defined. Our objective was to show that a 7-valent pneumococcal conjugate vaccine (PCV7; Prevnar) was not inferior when first given 3 months after transplantation, compared with when first given 9 months after transplantation. METHODS: We performed a multicenter, randomized, noninferiority study involving 158 patients from 13 European Group for Blood and Marrow Transplantation centers who were randomly allocated at approximately 100 days after myeloablative stem cell transplantation to receive a series of vaccinations (3 doses of PCV7 given 1 month apart) that was started immediately (i.e., 3 months after transplantation) or 6 months later (i.e., 9 months after transplantation). The primary evaluation criterion was the rate of response (antibody level, > or = 0.15 microg/mL for each of the 7 serotypes) at 1 month after the third dose of PCV7. The noninferiority margin was 20%. All patients were followed up for 24 months after transplantation or until death, whichever occurred first. RESULTS: We found that the response rate was not lower after early vaccination (79% [45 of 57 patients]) than after late vaccination (82% [47 of 57 patients]) (difference, -3.5%; 90% confidence interval, -15.6 to 8.6; not significant). CONCLUSIONS: We conclude that PCV7 vaccination at 3 months after stem cell transplantation is not inferior to PCV7 vaccination at 9 months after transplantation. Because invasive pneumococcal disease can occur early, we recommend starting the PCV7 vaccination series at 3 months after transplantation to ensure earlier protection against Streptococcus pneumoniae. However, the early vaccination may result in only short-lasting response and may not prime for a 23-valent pneumococcal polysaccharide vaccine boost as efficiently as the late vaccination.
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