alexa Early application of High Cut-of Haemodialysis for de novo myeloma nephropathy is associated with long-term dialysis independency and renal recovery
Nephrology

Nephrology

Journal of Nephrology & Therapeutics

Author(s): Pasquali S

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Background In myeloma cast nephropathy, fast reduction of serum free light chain (FLC) levels correlates with renal recovery. Recently, extracorporeal treatments using filters with a high-molecular weight cut-off have been successfully used for FLC removal. However, using these new filters, high cost and elevated albumin leakage are common drawbacks. We studied a new and cheaper therapeutic approach with adsorbent resins to evaluate its efficacy. Methods We treated four patients, affected by dialysis-dependent acute kidney injury (AKI) due to biopsy proven de novo FLC myeloma cast nephropathy. Each patient underwent bortezomib chemotherapy and extracorporeal treatment with the supra-hemodiafiltration with endogenous reinfusion (HFR) technique (Supra-HFR, Bellco Mirandola, Modena, Italy). Supra-HFR is a kind of hemodiafiltration that utilizes separated convection, diffusion and adsorption. The sorbent cartridge has a high affinity for FLC (both κ and λ) but is able to re-infuse albumin, avoiding the need for albumin perfusions. Supra HFR treatments (4 h each) were carried out for eight consecutive days and then every other day. Results All patients showed a significant reduction of serum FLC, whereas serum albumin concentration remained unchanged. Renal function recovered in three out of four patients. Conclusions FLC removal with adsorbent resins represents an effective therapeutic strategy that does not require replacement with albumin .

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This article was published in Journal of Nephrology and referenced in Journal of Nephrology & Therapeutics

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