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  • Title: [Application of inflammation markers in the "essential laboratory tests" to new outpatients and analysis for the efficacious selection of these items].
    Author: Takemura Y, Matsuta H, Kugai N, Sekiguchi S.
    Journal: Rinsho Byori; 1994 Oct; 42(10):1055-61. PubMed ID: 7996715.
    Abstract:
    We have re-evaluated the usefulness of the inflammation markers in the "essential laboratory tests" advocated by Japan Society of Clinical Pathology and analyzed for efficacious selection of these items by applying these tests to 349 new outpatients visited Comprehensive Medicine, National Defense Medical College. Among the patients with "tentative initial diagnoses" of infectious or inflammation-related diseases (133 cases), the diagnoses were confirmed in 102 patients by positive inflammation marker(s), whereas additional 22 cases with the diagnoses other than inflammation-related diseases were found to be in the inflammatory status by these tests. Elevated C-reactive protein (CRP) levels were not correlated with the leukocyte number, however, neutrophilia (neutro. > 70%) and/or left shift of the neutrophils (stab > 15%) were demonstrated in approximately 50% of the patients with elevated serum CRP levels. Increases of serum sialic acid highly accompanied with increases of CRP, alpha 1 or alpha 2 fraction of serum protein and elevation of erythrocyte sedimentation rate (ESR), indicating that serum sialic acid levels reflected more strictly inflammatory status than ESR. There is a relatively good correlation (r = 0.813) between serum sialic acid values and the total amounts of alpha 1 and alpha 2 protein fraction, while poor correlations were shown between CRP and sialic acid values (r = 0.606), or ESR and sialic acid values (r = 0.671). These results indicate that (1) simultaneous measurements of CRP, leukocyte number and leukocyte differential fraction are useful for the confirmation of early stage of inflammation and evaluation of the nature of infectious diseases; (2) measurement of serum sialic acid levels is more desirable for the evaluation of inflammatory status than ESR; and (3) serum protein profile can be substituted by sialic acid for the evaluation of acute inflammatory status alone.
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