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Clinical Chemistry 31: 1232-1234, 1985;
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Clinical Chemistry, Vol 31, 1232-1234, Copyright © 1985 by American Association for Clinical Chemistry

Urinary creatine: biochemical indicator for evaluation of sickle cell crises

C Beyer, LW Statius van Eps, JJ Kastelein, DP Brandjes, WM Mairuhu and A van den Ende

In a patient with known sickle cell beta 0-thalassemia we measured serum lactate dehydrogenase (LD) activity and 24-h urinary creatine excretion rate as markers to evaluate sickle cell crises. We believe that a distinction based on biochemical findings can be made between hemolytic and painful vaso-occlusive sickle cell crises with muscular involvement. To assess hemolytic crises by objective biochemical measures, we have used assay of LD activity, and to assess painful crises with muscular involvement objectively, the 24-h urinary creatine excretion rate. We conclude that hemolytic crises are characterized by high serum LD activities. Furthermore, we conclude that--at least in this patient--painful crises are accompanied by high 24-h urinary creatine excretion rates. Our findings suggest that muscle involvement may play an important role in painful vaso-occlusive sickle cell crises.




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Copyright © 1985 by the American Association for Clinical Chemistry.