Soonchunhyang Med Sci.  2021 Dec;27(2):67-70. 10.15746/sms.21.016.

Eosinophilia in Patients with End Stage Renal Disease Undergoing Hemodialysis

Affiliations
  • 1Division of Hematology-Oncology, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
  • 2Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea
  • 3Division of Oncology-Hematology, Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea

Abstract


Objective
Eosinophilia in patients on hemodialysis has already been reported. It has been associated with allergy to dialyzers and exaggerated activation of complement during hemodialysis. Its etiology, however, remains unknown. In addition, there are not enough studies on eosinophilia in patients on hemodialysis in Korea. Therefore, we performed this retrospective study to find out the prevalence and possible etiologic factors of blood eosinophilia in patients undergoing hemodialysis.
Methods
Between January 2013 to December 2015, the patients hospitalized for hemodialysis at Soonchunhyang University Hospital and National Health Insurance Service Medical Center (Ilsan Hospital) were included in this study. Eosinophilia was defined when absolute eosinophil count was greater than 500/μL, respectively. We retrospectively reviewed the medical records of patients about parasite infection, other malignancies, and history of kidney transplantation.
Results
Of the 2,155 patients hospitalized for hemodialysis at two centers, 1,057 patients (49%) were found to have eosinophilia. We investigated 1,199 patients’ information (Soonchunhyang University Hospital) by the medical records. Two hundred two patients (16.8%) had no identifiable and/or possible causes. Only two patients complained of symptoms such as itching. Steroids were administered to control symptoms, and both patients had normal eosinophil levels, and steroids were discontinued. Other patients did not complain of specific symptoms associated with eosinophilia and did not take medication such as steroids. Eosinophilia was improved in 49% of patients without special treatments.
Conclusion
We found that the eosinophil counts in patients with end stage renal disease on hemodialysis were frequently elevated. However, in most cases, eosinophilia was not clinically relevant.

Keyword

Eosinophilia; End-stage renal disease; Hemodialysis
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