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  • Cardiac toxicity of high-dose cyclophosphamide in patients with multiple myeloma undergoing autologous hematopoietic stem cell transplantation
    Zver, Samo, 1966- ...
    High-dose cyclophosphamide is a well-known mobilization regimen in patients with multiple myeloma undergoing autologous hematopoietic stem cell transplantation. Highly differing rates of cardiac ... complications associated with high-dose cyclophosphamide have been reported. To date, no systematic clinical study has investigated high-dose cyclophosphamide mobilization regimens in multiple myeloma patients and evaluated its cardiotoxicity. We administered high-dose cyclophosphamide (4 g/m2) to 23 consecutive multiple myeloma patients and followed the patients for 15 days by serially measuring the cardiotoxicity biomarkers troponin I (TnI), brain natriuretic peptide (BNP), and endothelin 1 (ET-1). Systolic and diastolic left ventricular function was assessed by complete echocardiography before and at 6 to 8 weeks after the therapy. Patients younger than 55 years showed significant differences between basal TnI levels and TnI concentrations determined at 15 days after high-dose cyclophosphamide treatment (P = .028). Significant differences between basal BNP concentrations and BNP levels measured at 8 hours after high-dose cyclophosphamide treatment were found in the entire group of patients as well as in 2 subgroups, patients younger than 55 years and those older than 55 years (P <.0001, P <.001, and P = .001, respectively).ET-1 results for the entire group of patients showed a significant difference between baseline ET-1 values and ET-1 values determined8 hours after high-dose cyclophosphamide administration (P = .004). Echocardiographic measurements revealed a barely nonsignificant decrease in cardiac output after high-dose cyclophosphamide infusion compared with pretreatment values (P = .06), a result in accord with echocardiographically detected increases in mild functional mitral regurgitation (P = .025). (Abstract truncated at 2000 characters)
    Vir: International journal of hematology. - ISSN 0925-5710 (Vol. 85, no. 5, 2007, str. 408-414)
    Vrsta gradiva - članek, sestavni del
    Leto - 2007
    Jezik - angleški
    COBISS.SI-ID - 23002841