Clinical Utility of Reticulocyte Hemoglobin Equivalent (RET-He) and Related Indices in Predicting Erythropoietin Response in Hemodialysis Patients

Tejal Barot; Dr. Ankita Bhatiya; Dr. Faruq Mulla

Tejal Barot Assistant Professor, B. N. Patel Institute of Allied and Healthcare Sciences, Anand, Gujarat, India.
Dr. Ankita Bhatiya Associate Professor, L. P. Patel Institute of Allied Health Sciences and Technology, Karamsad, Gujarat, India.
Dr. Faruq Mulla Professor, Department of Pathology, Pramukhswami Medical College, Bhaikaka University, Karamsad, Gujarat, India.

Keywords: Erythropoietin Response, ESA Therapy, Hemodialysis, Iron Deficiency, RET-He, Reticulocyte Indices

Abstract

This study evaluated the predictive value of reticulocyte hemoglobin equivalent (RET-He) and related indices, including immature reticulocyte fraction (IRF) and mean reticulocyte volume (MRV), for assessing erythropoietin (EPO) responsiveness in 400 patients undergoing maintenance hemodialysis (HD). The objective was to determine whether RET-He could serve as a reliable biomarker of early erythropoietic activity and iron availability following EPO therapy.

Correlation, regression, and receiver operating characteristic (ROC) analyses were applied to explore relationships between baseline reticulocyte parameters and post-treatment hemoglobin response. RET-He exhibited a weak positive correlation (r = 0.0004, p = 0.993) with hemoglobin improvement, indicating negligible predictive capacity. Regression analysis revealed that baseline hemoglobin, not RET-He, independently predicted treatment response (p < 0.001). RET-He and IRF were useful for real-time diagnostic monitoring but not as prognostic indicators.

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