Abstract
The possible relationship between red blood cell (RBC) deformability and secondary hyperparathyroidism (HPT) in 23 patients on maintenance hemodialysis was examined. Secondary HPT was evaluated by means of serum biochemistry (parathyroid hormone, calcium, phosphorus, and alkaline phosphatase) and radiographic examinations. This study showed that RBC deformability is markedly reduced in hemodialyzed patients when compared with normal controls. No significant correlation between RBC deformability and the hematochemical changes associated with secondary HPT was found. No difference in RBC deformability was observed as far as the activity (alkaline phosphatase) and the severity (radiographic findings) of secondary HPT are concerned. Effective treatment of secondary HPT by either pharmacological means (1 alpha, 25-dihydroxycholecalciferol therapy) or surgical removal was not associated with consequent improvement in RBC deformability. It is concluded that secondary HPT is probably not a major factor influencing RBC deformability in uremic patients on maintenance hemodialysis.
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