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Valganciclovir-induced leukopenia in liver transplant recipients: influence of concomitant use of mycophenolate mofetil.
Transplantation Proceedings 2009 April
INTRODUCTION: An increased incidence and magnitude of leukopenia during concomitant treatment with valganciclovir (VGC) and mycophenolate mofetil (MMF) has been reported.
OBJECTIVE: To evalute the incidence and severity of leukopenia and neutropenia among liver recipients treated with VGC and related factors.
PATIENTS AND METHODS: Retrospective analysis of clinical and analytical data related to leukopenia (<3000 leukocytes/mm(3)) and neutropenia (<900 neutrophils/mm(3)) in liver transplant patients who were treated with VGC from 2003 to 2007. We examined the influence of concomitant administration of MMF and development of subsequent infections.
RESULTS: Among 209 liver transplants, 40 treatments with VGC were prescribed in 37 patients (17.7%), 12 of which (30%) were associated with MMF. The patients has an average age of 49.7 +/- 12.7, body mass index (BMI) of 27.28 +/- 5.17, and Model for End-stage Liver Disease Score (MELD) 12.45 +/- 7.5. The daily average dose of VGC was 1440 +/- 446.5 mg and MMF, 1454.5 +/- 350.3 mg. We observed a decrease of 30% in initial leukocyte count (5353.7 +/- 2706.6) and 40% in neutrophil count (3600 +/- 2182.1). With no relationship to total dose or BMI-adjusted dose of VGC nor concomitant administration of MMF. The initial leukocyte count was significantly lower (4411 +/- 1930 vs 6206 +/- 3053; P = .03) and underwent a main drop (2344.7 +/- 1974.3 vs 898.1 +/- 2435.6; P = .04) when leukopenia developed. In the induced neutropenia group, previous leukocyte count (3797.1 +/- 1223.9 vs 5683.9 +/- 2829.3; P = .01), MELD (18.7 +/- 8.8 vs 11.1 +/- 6.6; P = .01), and the creatinine pretreatment (1.44 +/- 0.4 vs 1.09 +/- 0.3; P = .01) were significantly different. Subsequent infections induced by the leukopenia were not observed.
CONCLUSIONS: In our series, the concomitant use of VGC and MMF was not associated with a greater incidence of leukopenia and/or neutropenia than VGC administration alone. Previous leukocyte count was associated with them. MELD and renal dysfunction are factors related to severe neutropenia. Leukopenia was not associated with a greater incidence of infections.
OBJECTIVE: To evalute the incidence and severity of leukopenia and neutropenia among liver recipients treated with VGC and related factors.
PATIENTS AND METHODS: Retrospective analysis of clinical and analytical data related to leukopenia (<3000 leukocytes/mm(3)) and neutropenia (<900 neutrophils/mm(3)) in liver transplant patients who were treated with VGC from 2003 to 2007. We examined the influence of concomitant administration of MMF and development of subsequent infections.
RESULTS: Among 209 liver transplants, 40 treatments with VGC were prescribed in 37 patients (17.7%), 12 of which (30%) were associated with MMF. The patients has an average age of 49.7 +/- 12.7, body mass index (BMI) of 27.28 +/- 5.17, and Model for End-stage Liver Disease Score (MELD) 12.45 +/- 7.5. The daily average dose of VGC was 1440 +/- 446.5 mg and MMF, 1454.5 +/- 350.3 mg. We observed a decrease of 30% in initial leukocyte count (5353.7 +/- 2706.6) and 40% in neutrophil count (3600 +/- 2182.1). With no relationship to total dose or BMI-adjusted dose of VGC nor concomitant administration of MMF. The initial leukocyte count was significantly lower (4411 +/- 1930 vs 6206 +/- 3053; P = .03) and underwent a main drop (2344.7 +/- 1974.3 vs 898.1 +/- 2435.6; P = .04) when leukopenia developed. In the induced neutropenia group, previous leukocyte count (3797.1 +/- 1223.9 vs 5683.9 +/- 2829.3; P = .01), MELD (18.7 +/- 8.8 vs 11.1 +/- 6.6; P = .01), and the creatinine pretreatment (1.44 +/- 0.4 vs 1.09 +/- 0.3; P = .01) were significantly different. Subsequent infections induced by the leukopenia were not observed.
CONCLUSIONS: In our series, the concomitant use of VGC and MMF was not associated with a greater incidence of leukopenia and/or neutropenia than VGC administration alone. Previous leukocyte count was associated with them. MELD and renal dysfunction are factors related to severe neutropenia. Leukopenia was not associated with a greater incidence of infections.
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