Comparative Study of Serum Cystatin C and Serum Creatinine Level in Before and After Hemodialysis

Background: Chronic kidney disease (CKD) is a pathophysiologic process characterised by a decrease in nephron number and function, which often leads to end-stage renal disease (ESRD). Serum plasma cystatin C is a new test for determining kidney function. Its accuracy in determining the efficacy of haemodialysis in patients with end-stage renal disease has yet to be determined.

Serum cystatin C, which is formed at a constant rate by all nucleated cells and filtered freely by the glomerulus, is neither secreted nor reabsorbed, and is unaffected by non-renal influences.

Materials and Methods: This study was a comparative study, conducted in the nephrology Department at DMMC & SMHRC, Nagpur in collaboration with ABVRH and JNMC Wardha, Sawangi (Meghe) during September 2020 to March 2021. Total 25 patient (End stage renal disease) included for the present study, the age group 30-60 years with 17 male patients and 08 female patients.

Result: Serum creatinine concentration in the before hemodialysis with 8.72±3.00 and for the after hemodialysis 3.20±1.18(P < 0.0001). The serum cystatin C concentration in the before hemodialysis 5.50±2.09 and for the after hemodialysis 8.7±1.75(P < 0.0001). the process of hemodialysis leads to a significantly low in a serum creatinine concentration as compared to before hemodialysis. The serum cystatin C concentration significantly increase in the after hemodialysis patient as compared to before hemodialysis.

Conclusion: Hemodialysis adequacy cannot be determined using serum cystatin C. It does, however, serve as a surrogate marker of dialysis inadequacy, particularly when low flux membranes are used. Routine examination of serum cystatin C in hemodialysis patients will help in the monitoring of the patient's overall clinical condition.