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Two Serum Free Light Chain Detection Systems in the Diagnosis of Multiple Myeloma / 中国实验血液学杂志
Journal of Experimental Hematology ; (6): 1209-1215, 2021.
Article in Chinese | WPRIM | ID: wpr-888540
ABSTRACT
OBJECTIVE@#To investigate the comparability of the Freelite, Binding Site, Beckman and N Latex FLC, Siemens in the detection of serum free light chain (sFLC) .@*METHODS@#Fifty newly diagnosed multiple myeloma (MM) patients in Tianjin Institute of Blood Research from November 2019 to February 2020 were enrolled. The two systems (Freelite, Binding Site, Beckman and N Latex FLC, Siemens) were used to detect the sFLC of the samples. Outlier detection was performed by ESD method, methodological comparison and deviation assessment were performed by Passing-Bablok regression and Bland-Altman regression.@*RESULTS@#Both the systems could quantitatively analyze free kappa light chain serum samples and free lambda light chain samples. Freelite, Binding Site, Beckman and N Latex FLC, Siemens free light chain test showed FLC-κ:36.5 (6.5, 194), 40.5 (6.94, 288), FLC-λ 30.1 (4.3, 170.5), 35.1 (2.28, 526), rFLC (FLC-κ/ FLC-λ) 0.82 (0.05, 43.25), 1.03 (0.03, 32.04), dFLC (|FLC-κ- FLC-λ|) -5.8 (-161.97, 183.7), 1.1 (-505.1, 279.01), which existed no outliers. There were systematic differences, and the deviation level was not within the clinically acceptable range.@*CONCLUSION@#Both the systems can meet the needs of clinical diagnosis and treatment, but there is a significant deviation between the two systems, the results are not comparable, and should be analyzed separately. In particular, the same system should be selected for monitoring the prognosis of MM.
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Immunoglobulin kappa-Chains / Immunoglobulin lambda-Chains / Immunoglobulin Light Chains / Latex / Multiple Myeloma Type of study: Diagnostic study / Prognostic study Limits: Humans Language: Chinese Journal: Journal of Experimental Hematology Year: 2021 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Immunoglobulin kappa-Chains / Immunoglobulin lambda-Chains / Immunoglobulin Light Chains / Latex / Multiple Myeloma Type of study: Diagnostic study / Prognostic study Limits: Humans Language: Chinese Journal: Journal of Experimental Hematology Year: 2021 Type: Article