Abstracting and Indexing

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Carbamylated Haemoglobin is an Early Biomarker to Predict Chronic Kidney Disease

Author(s): Tahora S, Islam MM, Jahan F, Rahman AKMS, Akbar AAG, Mekhola MH, Hassan MM, Alam MR, Islam SMU, Rahman MM

Background: Diagnosing chronic kidney disease (CKD) in clinical practice is quite difficult for patients presenting with uremia for the first time. Carbamylated haemoglobin (CarHb) may provide a better index of chronic uraemic exposure than a single measurement of urea.

Objective: To evaluate the carbamylated haemoglobin as an early biomarker in the diagnosis of CKD.

Methodology: This prospective observational study was conducted in the Department of Nephrology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from January 2019 to December 2019. A total of seventy (70) patients with renal impairment were enrolled. On the basis of developing CKD the study population was divided into two groups- group A (CKD) and group B (Non CKD). Relevant investigations like- urine routine microscopic examination, 24 hours urinary total protein, blood urea, serum creatinine, serum electrolytes, complete blood count, serum albumin, serum calcium, serum phosphate, serum parathyroid hormone, carbamylated haemoglobin levels and renal ultrasonography were done. These investigations were repeated in each patient after 3 months to define CKD according to KDIGO guideline. All data were analyzed and compared by statistical tests.

Results: Among total 70 study subjects, 15(21.4%) patients had CKD and their mean age was 54.47(±11.84) years. Carbamylated haemoglobin (CarHb) level was significantly higher (107.2±9.3 µgVH/g Hb versus 86.2±15.2 µgVH/g Hb; p<0.001) in subjects who had CKD.

 Conclusion: In patients with chronic kidney disease (CKD), carbamylated haemoglobin (CarHb) level is raised early before appearance of other biomarkers of CKD. Carbamylated haemoglobin (CarHb) may be a good biomarker for the early prediction of CKD.

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