Review of 1027 patients with newly diagnosed multiple myeloma

RA Kyle, MA Gertz, TE Witzig, JA Lust, MQ Lacy… - Mayo clinic …, 2003 - Elsevier
Mayo clinic proceedings, 2003Elsevier
Objective To determine the clinical and laboratory features of newly diagnosed multiple
myeloma. Patients and Methods Records of all patients in whom multiple myeloma was
initially diagnosed at the Mayo Clinic in Rochester, Minn, from January 1, 1985, to
December 31, 1998, were reviewed. Results Of the 1027 study patients, 2% were younger
than 40 years, and 38% were 70 years or older. The median age was 66 years. Anemia was
present initially in 73% of patients, hypercalcemia (calcium level≥ 11 mg/dL) in 13%, and a …
Objective
To determine the clinical and laboratory features of newly diagnosed multiple myeloma.
Patients and Methods
Records of all patients in whom multiple myeloma was initially diagnosed at the Mayo Clinic in Rochester, Minn, from January 1, 1985, to December 31, 1998, were reviewed.
Results
Of the 1027 study patients, 2% were younger than 40 years, and 38% were 70 years or older. The median age was 66 years. Anemia was present initially in 73% of patients, hypercalcemia (calcium level ≥11 mg/dL) in 13%, and a serum creatinine level of 2 mg/dL or more in 19%. The β2-microglobulin level was increased in 75%. Serum protein electrophoresis revealed a localized band in 82% of patients, and immunoelectrophoresis or immunofixation showed a monoclonal protein in 93%. A monoclonal light chain was found in the urine in 78%. Nonsecretory myeloma was recognized in 3% of patients, whereas light-chain myeloma was present in 20%. Conventional radiographs showed an abnormality in 79%. The plasma cell labeling index was 1% or more in 34% of patients. Multivariate analysis revealed that age, plasma cell labeling index, low platelet count, serum albumin value, and the log of the creatinine value were the most important prognostic factors.
Conclusion
The median duration of survival was 33 months and did not improve from 1985 through 1998.
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