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Extracorporeal Light-chain Elimination in Myeloma with Simple Medium Cutoff Membrane Hemodialysis: a Retrospective Cohort Study

Abstract

Background: We determined the efficacy of free light chain (FLC) removal by regular dialysis equipment (high-flux filtration) with medium cutoff (MCO) membrane hemodialysis (HD) as an adjuvant treatment to standard chemotherapy for patients with acute kidney injury complicating multiple myeloma (MM) and its impact on further dialysis dependency.

Methods: Sixty patients with acute dialysis-dependent renal failure secondary to MM were treated with MCO-HD (55 patients) or HCO (high cutoff)-HD (5 patients) as a control. FLC serum concentration, total protein, immunoglobulins, and LDH were measured throughout the dialysis therapy. The kidney function of the patients was followed up for 1 year.

Results: The median age was 69 years; 25 female and 35 male patients were enrolled. HD significantly reduced FLC kappa levels in the MCO/HCO group by 58%/84% (MCO/HCO group; < 0.05) and FLC lambda by 39%/33% (MCO/HCO group; < 0.05). Single HD data (MCO) showed a relative reduction of 70% in kappa and 37% in lambda FLC concentration, as expected by the different sizes of the light chains. Renal function improved significantly and continuously from starting creatinine 5.7/3.8 mg/dl (MCO/HCO group) before HD to 1.4/2.0 mg/dl (MCO/HCO group; < 0.001) after 1 year. No significant alteration of total protein, immunoglobulins, and LDH concentrations by HD (HCO and MCO group) was observed. After 1 year, 37 of 60 patients were alive and 34 of them were off dialysis.

Conclusion: FLC elimination with MCO-HD is effective, technically easy, and less cost-intensive as compared with HCO-HD. Kidney function recovery in MM patients is achievable.

References
1.
Hutchison C, Cockwell P, Reid S, Chandler K, Mead G, Harrison J . Efficient removal of immunoglobulin free light chains by hemodialysis for multiple myeloma: in vitro and in vivo studies. J Am Soc Nephrol. 2007; 18(3):886-95. DOI: 10.1681/ASN.2006080821. View

2.
Clark W, Stewart A, Rock G, Sternbach M, Sutton D, Barrett B . Plasma exchange when myeloma presents as acute renal failure: a randomized, controlled trial. Ann Intern Med. 2005; 143(11):777-84. DOI: 10.7326/0003-4819-143-11-200512060-00005. View

3.
Dimopoulos M, Terpos E, Chanan-Khan A, Leung N, Ludwig H, Jagannath S . Renal impairment in patients with multiple myeloma: a consensus statement on behalf of the International Myeloma Working Group. J Clin Oncol. 2010; 28(33):4976-84. DOI: 10.1200/JCO.2010.30.8791. View

4.
Ramos Terrades N, Senin A, Azancot M, Gironella M, Toapanta N, Bermejo S . Role of light chain clearance in the recovery of renal function in multiple myeloma: another point of view. Clin Kidney J. 2023; 16(6):1014-1021. PMC: 10229297. DOI: 10.1093/ckj/sfad022. View

5.
Tanner G, Evan A . Glomerular and proximal tubular morphology after single nephron obstruction. Kidney Int. 1989; 36(6):1050-60. DOI: 10.1038/ki.1989.300. View