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- Hultcrantz, M., et al.
(författare)
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Elevated risk of venous but not arterial thrombosis in Waldenstrom macroglobulinemia/lymphoplasmacytic lymphoma
- 2014
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Ingår i: Journal of Thrombosis and Haemostasis. - : Elsevier BV. - 1538-7933 .- 1538-7836. ; 12:11, s. 1816-1821
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundMany malignancies, including multiple myeloma and its precursor, monoclonal gammopathy of unknown significant, are associated with an elevated risk of thromboembolism. There is limited information on the risk of thrombosis in patients with Waldenstrom macroglobulinemia (WM) and lymphoplasmacytic lymphoma (LPL). ObjectivesTo assess the risk of venous and arterial thrombosis in WM/LPL patients in a large population-based cohort study in Sweden. Patients/methodsA total of 2190 patients with WM/LPL and 8086 matched controls were identified through Swedish registers between 1987 and 2005. Information on occurrence of venous and arterial thrombosis after the diagnosis of WM/LPL was obtained through the centralized Swedish Patient Register, with follow-up to 2006. Cox regression models were used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs). ResultsPatients with WM/LPL had a significantly increased risk of venous thrombosis and the highest risk was observed during the first year following diagnosis (HR=4.0, 95% CI 2.5-6.4). The risk was significantly elevated 5 (HR=2.3, 95% CI 1.7-3.0) and 10years after diagnosis (HR=2.0, 95% CI 1.6-2.5). There was no increased risk of arterial thrombosis during any period of follow-up time (10-year HR=1.0, 95% CI 0.9-1.1). ConclusionsVenous thrombosis is a significant cause of morbidity in patients with WM/LPL. The potential role of thromboprophylaxis in WM/LPL, especially during the first year after diagnosis and in patients treated with thrombogenic agents, needs to be assessed to further improve outcome in WM/LPL patients.
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- Kyle, R. A., et al.
(författare)
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Monoclonal gammopathy of undetermined significance (MGUS) and smoldering (asymptomatic) multiple myeloma: IMWG consensus perspectives risk factors for progression and guidelines for monitoring and management
- 2010
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Ingår i: Leukemia. - : Springer Science and Business Media LLC. - 1476-5551 .- 0887-6924. ; 24:6, s. 1121-1127
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Forskningsöversikt (refereegranskat)abstract
- Monoclonal gammopathy of undetermined significance (MGUS) was identified in 3.2% of 21 463 residents of Olmsted County, Minnesota, 50 years of age or older. The risk of progression to multiple myeloma, Waldenstrom's macroglobulinemia, AL amyloidosis or a lymphoproliferative disorder is approximately 1% per year. Low-risk MGUS is characterized by having an M protein < 15 g/l, IgG type and a normal free light chain (FLC) ratio. Patients should be followed with serum protein electrophoresis at six months and, if stable, can be followed every 2-3 years or when symptoms suggestive of a plasma cell malignancy arise. Patients with intermediate and high-risk MGUS should be followed in 6 months and then annually for life. The risk of smoldering (asymptomatic) multiple myeloma (SMM) progressing to multiple myeloma or a related disorder is 10% per year for the first 5 years, 3% per year for the next 5 years and 1-2% per year for the next 10 years. Testing should be done 2-3 months after the initial recognition of SMM. If the results are stable, the patient should be followed every 4-6 months for 1 year and, if stable, every 6-12 months. Leukemia (2010) 24, 1121-1127; doi:10.1038/leu.2010.60; published online 22 April 2010
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- Landgren, O, et al.
(författare)
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Risk of monoclonal gammopathy of undetermined significance (MGUS) and subsequent multiple myeloma among African American and white veterans in the United States
- 2006
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Ingår i: Blood. - : American Society of Hematology. - 1528-0020 .- 0006-4971. ; 107:3, s. 904-906
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Tidskriftsartikel (refereegranskat)abstract
- The age-adjusted incidence of multiple myeloma (MM) is 2-fold higher in African Americans than in whites. A few small studies have reported a higher prevalence of monoclonal gammopathy of undetermined significance (MGUS) in African Americans versus whites. Etiologic factors for MGUS and determinants for transformation of MGUS to MM are unknown. We quantified the prevalence of MGUS and subsequent risk of MM among 4 million African American and white male veterans admitted to Veterans Affairs (VA) hospitals. The age-adjusted prevalence ratio of MGUS in African Americans compared with whites was 3.0 (2.7-3.3 95% confidence interval). Among 2046 MGUS cases, the estimated cumulative risk of MM during the first 10 years of follow-up was similar (P = .37) for African Americans (17%) and whites (15%). In the largest study to date, we suggest that the excess risk of MM in African Americans results from an increase in risk of MGUS rather than an increased risk of progression from MGUS to MM.
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- Turesson, Ingemar, et al.
(författare)
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Rapidly changing myeloma epidemiology in the general population: Increased incidence, older patients, and longer survival
- 2018
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Ingår i: European Journal of Haematology. - : Wiley. - 0902-4441 .- 1600-0609. ; 101:2, s. 237-244
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Tidskriftsartikel (refereegranskat)abstract
- The incidence of multiple myeloma is characterized by a steep increase with advancing age. Dramatic improvements in survival have been reported in clinical trials; however, elderly patients are generally underrepresented in these. The aims of this study are to review patterns of incidence and survival in multiple myeloma in the general population. We searched PubMed for population-based studies on trends in incidence and survival published between January 1, 2000 and June 30, 2017 and based on regional or national cancer registries and report the following results of the review. The age-adjusted incidence of multiple myeloma has increased during the second half of the twentieth century in some countries but remained stable in areas with high case ascertainment and access to universal medical care. The crude incidence is increasing globally due to an aging population. Survival rates have improved, and 5-year relative survival rates are now around 50% and over 60% in patients 65-70years or younger. Preliminary data suggest a 3-fold increase in the prevalence of multiple myeloma. We conclude that the number of multiple myeloma patients is increasing in the general population due to (i) aging populations and (ii) more patients living longer due to modern drugs.
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