INTRODUCTION: Autologous stem cell transplantation (ASCT) became standard of care for patients with multiple myeloma (MM) under the age of 65 years. We routinely perform ASCT for newly diagnosed MM since 1996 in our department. PATIENTS AND METHODS: We retrospectively analyzed all 285 transplants in 185 patients done for MM from January 1996 till December 2010. We analyzed overall survival (OS) and progression-free survival (PFS) regarding conditioning, stage, complete or very good partial remission (CR, VGPR) achievement, renal impairment, single vs. double transplant. RESULTS: Estimated 10-years survival of the whole set of patients is 39% (median survival 95 months). Patients with renal impairment show same OS as those without (p = 0.22). Patients show similar overall survival and event free survival regardless of type of transplant. We observed better outcome in terms of overall survival in patients treated with new drugs (p = 0.0014). Reaching CR or VGPR was not translated into better OS (p = 0.30) and EFS (p = 0.10). Also stage of the disease and whether single or double transplant was used did not make any significant difference in the outcome. CONCLUSION: Stem cell transplantation greatly improved outcome of patients with MM. Poor outcome of allogeneic transplantation in our group of patients is related to high transplant related mortality (20% vs. 0%) and unexpected high relapse rate. There is a trend towards better survival, when new drugs are incorporated at any time in the course of the disease. This fact supports hypothesis that use of these drugs with ASCT should translate into better long-term outcome. and J. Radocha, V. Maisnar, A. Zavrelová, M. Cermanová, M. Lánská, M. Kmonícek, L. Jebavý, M. Bláha, J. Malý, P. Zák
Monoklonální volné lehké řetězce jsou produkovány u naprosté většiny benigních i maligních monoklonálních gamapatií. Monoklonální gamapatie nejasného významu je benigní onemocnění, jehož dlouhodobý průběh však může vyústit v maligní zvrat. Byly identifikovány rizikové faktory pro zvrat MGUS do malignity. V této práci byla pilotně analyzována data z českého registru RMG z dosud zadaných 1125 pacientů s MGUS s ohledem na vyšetřené jednotlivé popsané rizikové faktory. Současně byla provedena analýza volných lehkých řetězců jako prognostického faktoru u pacientů s mnohočetným myelomem a dosaženou kompletní remisí., Monoclonal free light chains are produced in the vast majority of monoclonal gammopathie. Monoclonal gammopathy of undetermined significance is benign disorder, which long term outcome could be malignant transformation. Several risk factors of malignant transformation of MGUS have been identified. In this work we analyze data from 1125 patients from Czech monoclonal gammopathies registry RMG. Analysis of free light chain ratio as a marker of stringent complete remission was done on the same basis., Radocha J., Maisnar V., Klincová M., Vávrová J., Kaisarová P., Hájek R., Tichý M., Malý J., and Lit.: 9