Cited by 647Multiple Myeloma Research and TreatmentsChronic Lymphocytic Leukemia ResearchAmyloidosis: Diagnosis, Treatment, Outcomes

The DOI matches its Crossref record; 29 of the 30 references it cites were found in a registry or an index.

Long-Term Follow-up of Monoclonal Gammopathy of Undetermined Significance

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Abstract

BACKGROUND: Monoclonal gammopathy of undetermined significance (MGUS) occurs in approximately 3% of persons 50 years of age or older. METHODS: We studied 1384 patients who were residing in southeastern Minnesota and in whom MGUS was diagnosed at the Mayo Clinic in the period from 1960 through 1994; the median follow-up was 34.1 years (range, 0.0 to 43.6). The primary end point was progression to multiple myeloma or another plasma-cell or lymphoid disorder. RESULTS: During 14,130 person-years of follow-up, MGUS progressed in 147 patients (11%), a rate that was 6.5 times (95% confidence interval [CI], 5.5 to 7.7) as high as the rate in the control population. The risk of progression without accounting for death due to competing causes was 10% at 10 years, 18% at 20 years, 28% at 30 years, 36% at 35 years, and 36% at 40 years. Among patients with IgM MGUS, the presence of two adverse risk factors - namely, an abnormal serum free light-chain ratio (ratio of kappa to lambda free light chains) and a high serum monoclonal protein (M protein) level (≥1.5 g per deciliter) - was associated with a risk of progression at 20 years of 55%, as compared with 41% among patients who had one adverse risk factor and 19% among patients who had neither risk factor. Among patients with non-IgM MGUS, the risk of progression at 20 years was 30% among those who had the two risk factors, 20% among those who had one risk factor, and 7% among those who had neither risk factor. Patients with MGUS had shorter survival than was expected in the control population of Minnesota residents of matched age and sex (median, 8.1 vs. 12.4 years; P<0.001). CONCLUSIONS: Significant differences were noted in the risk of progression between patients with IgM MGUS and those with non-IgM MGUS. Overall survival was shorter among patients with MGUS than was expected in a matched control population. (Funded by the National Cancer Institute.).

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  1. Kyle R Katzmann JA. Immunochemical characterization of immunoglobulins. In: Rose NR Conway de Macario E Folds JD Lane HC Nakamura RM eds. Manual of clinical laboratory immunology. 5th ed. Washington DC: ASM Press 1997:156-76.

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Metadata

Authors
Kyle, R. A., Larson, D. R., Therneau, T. M., Dispenzieri, A., Kumar, S., Cerhan, J. R., & Rajkumar, S. V.
Affiliations
Mayo Clinic (US)
Venue
New England Journal of Medicine
Published
2018-01-18
Volume
378
Issue
3
Pages
241-249
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2785817645
Cited by
647
References
30
Citations by year
2026: 62 · 2025: 90 · 2024: 101 · 2023: 81 · 2022: 75 · 2021: 76 · 2020: 80 · 2019: 47 · 2018: 33
FWCI
42.32
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Cancer Institute (CA107476, CA168762, CA186781)
Topics
  • Health Sciences › Medicine › Hematology › Multiple Myeloma Research and Treatments
  • Health Sciences › Medicine › Hematology › Chronic Lymphocytic Leukemia Research
  • Health Sciences › Medicine › Internal Medicine › Amyloidosis: Diagnosis, Treatment, Outcomes
Keywords
monoclonal gammopathy of undetermined significance, progression to multiple myeloma, plasma cell dyscrasia, free light chain ratio, risk factors, survival, long-term follow-up
MeSH terms
Adult, Aged, Bone Marrow Examination, Female, Follow-Up Studies, Glycoproteins, Humans, Immunoglobulin M, Immunoglobulin Light Chains, Male, Middle Aged, Monoclonal Gammopathy of Undetermined Significance, Multiple Myeloma, Prognosis, Risk Factors, Proportional Hazards Models, Disease Progression

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