Rhabdomyolysis-Induced Acute Kidney Injury Treated with Medium Cut-Off Membrane: A Case Report

Acute kidney injury can complicate rhabdomyolysis in 10-40% patients. Myoglobinuria and elevated creatine kinase (CK) form the basis of diagnosis. When associated with azotemia and/or oliguria, intermittent hemodialysis is a treatment option. 31-year-old young man came with lower limb pain after doing 800 sit ups. At the presentation, blood pressure was high, serum creatinine was 15.7mg/dl and creatine kinase(CK)>20000 IU/L. Intermittent dialysis was initiated. He developed posterior reversible encephalopathy syndrome, generalized tonic clonic convulsions and a further rise in CK. He underwent extracorporeal removal of myoglobin with medium cut-off (MCO) membrane. After 3 sessions with MCO membrane, myoglobin and CK levels reduced. He was transitioned to conventional dialysis and discharged in a stable condition with complete renal recovery. Medium cut-off membrane effectively removes circulating myoglobin without significant albumin loss and is cost effective.