MO670EXPANDED HEMODIALYSIS REDUCES THE CONCENTRATION OF FREE LIGHT CHAINS IN PATIENTS WITH ACUTE KIDNEY INJURY IN MYELOMA CAST NEPHROPATHY

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
Konstantin Vishnevskii ◽  
Olga Domashenko
Keyword(s):  
Multiple Myeloma ◽  
Acute Kidney Injury ◽  
Kidney Injury ◽  
Average Concentration ◽  
High Flow ◽  
Low Flow ◽  
Light Chains ◽  
Free Light Chains ◽  
Cast Nephropathy ◽  
Myeloma Cast Nephropathy

Abstract Background and Aims The myeloma cast nephropathy is largely associated with the production of intact immunoglobulin and free light chains (FLC) by a plasma cells monoclone. The use of high-flux hemodiafiltration (HDF) contributes to a decrease in the concentration of FLC. However, it is not always possible to achieve the required substitute volume with acute kidney injury (AKI) emergency treatment. An alternative to HDF could be the usage of membranes with a medium cut-off (expanded hemodialysis (HD), Expanded HD). The aim of this study was to compare the degree of reduction in FLC concentration using conventional HD, HDF and Expanded HD. Method The study includes patients with newly diagnosed multiple myeloma who presented indications for HD therapy start. Procedures were performed on a daily basis from the moment when indications for HD therapy were identified. The duration of the first three procedures was 2 hours. Consistently for each patient the first procedure was carried out using a standard low-flow filter, the second - using a high-flow dialyzer and HDF (substitute volume 9 liters for 2 hours), the third - using a Theranova 400 filter (Baxter, Germany). The concentrations of FLC (kappa and lambda) and albumin were determined every 30 minutes of each treatment. Chemotherapy was prescribed according to the local clinical recommendations in combination with the ongoing renal replacement therapy. Results The study included 7 patients with cast nephropathy, mean age 68±8 years. Average concentration before treatment: kappa FLC 876±727 μg/ml (norm 3.25-15.81 μg/ml), lambda FLK 84±112 μg/ml (norm 3.23-28.05 μg/ml), albumin 34±1 g/l (norm 40-50 g/l). After 2 hours of treatment, there was a decrease in kappa FLC concentration with HDF (-34±33%, p=0.01) and with Expanded HD (-31±12%, p<0.001), but not with conventional HD (-1±7, p=0.79, Fig 1). The lambda FLC concentration also decreased with HDF (-41±29%, p=0.01) and with Expanded HD (-28±22%, p=0.01), but not with conventional HD (-3±12, p=0.65, Fig 2). Albumin concentrations did not change significantly with any of the treatments. Conclusion Expanded HD, as well as high-flow HDF, helps to reduce the FLC concentration in patients with cast nephropathy without loss of albumin, which may have a positive effect on the multiple myeloma prognosis. Further studies are needed regarding possibilities of using Expanded HD in the complex therapy for patients with AKI in myeloma cast nephropathy.

scholarly journals Haemodiafiltration with ultrafiltrate regeneration in the removal of free light chains in multiple myeloma and acute kidney injury

Nefrología ◽  
2018 ◽  
Vol 38 (3) ◽  
pp. 337-338
Author(s):  
Gioacchino Li Cavoli ◽  
Silvia Passanante ◽  
Onofrio Schillaci ◽  
Franca Servillo ◽  
Carmela Zagarrigo ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Acute Kidney Injury ◽  
Kidney Injury ◽  
Light Chains ◽  
Free Light Chains

scholarly journals Extracorporeal light chains removal – What role does this play in 2020?

2021 ◽  
Vol 34 (4) ◽  
Author(s):  
Inês Coelho ◽  
◽  
Hugo Ferreira ◽  
Teresa Chuva ◽  
Ana Paiva ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Kidney Injury ◽  
Rapid Decrease ◽  
Light Chains ◽  
Free Light Chains ◽  
Monoclonal Immunoglobulin ◽  
Serum Free ◽  
Cast Nephropathy ◽  
Cell Clones ◽  
Serum Free Light Chains

Multiple Myeloma (MM) is characterized by a neoplastic proliferation of plasma cell clones producing monoclonal immunoglobulin. Manifestations of the disease are heterogenous and include dialysis­‑requiring acute kidney injury (AKI) caused mainly by cast nephropathy (CN). It is known that early and rapid decrease in serum free light chains (sFLC) levels is particularly important for renal recovery, which has led to a renewed interest in extracorporeal methods of removal of sFLC. In this review we will discuss the management of light chain CN focusing on extracorporeal light chains removal modalities and their indication.

scholarly journals Haemodiafiltration with ultrafiltrate regeneration in the removal of free light chains in multiple myeloma and acute kidney injury

2018 ◽  
Vol 38 (3) ◽  
pp. 337-338
Author(s):  
Gioacchino Li Cavoli ◽  
Silvia Passanante ◽  
Onofrio Schillaci ◽  
Franca Servillo ◽  
Carmela Zagarrigo ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Acute Kidney Injury ◽  
Kidney Injury ◽  
Light Chains ◽  
Free Light Chains

scholarly journals SP253A NEW STRATEGY TO REMOVE SERUM FREE LIGHT CHAINS(SFLC)IN PATIENTS WITH MULTIPLE MYELOMA (MM) AND ACUTE KIDNEY INJURY (AKI)

2015 ◽  
Vol 30 (suppl_3) ◽  
pp. iii462-iii462
Author(s):  
Francescaromana Festuccia ◽  
Elisa Giammarioli ◽  
Claudia Fofi ◽  
Giusy Antolino ◽  
Giacinto La Verde ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Acute Kidney Injury ◽  
Kidney Injury ◽  
Light Chains ◽  
Free Light Chains ◽  
Serum Free ◽  
New Strategy ◽  
Serum Free Light Chains

scholarly journals Effect of high cut-off dialysis for acute kidney injury secondary to cast nephropathy in patients with multiple myeloma: a systematic review and meta-analysis

2020 ◽  
Author(s):  
Blanca Tarragón ◽  
Nan Ye ◽  
Martin Gallagher ◽  
Shaundeep Sen ◽  
Jose Maria Portolés ◽  
...  
Keyword(s):  
Systematic Review ◽  
Multiple Myeloma ◽  
Clinical Outcomes ◽  
Meta Analysis ◽  
Kidney Injury ◽  
Light Chains ◽  
Cast Nephropathy ◽  
Myeloma Cast Nephropathy ◽  
All Cause Mortality

ABSTRACT Background Acute kidney injury (AKI) caused by cast nephropathy is associated with increased morbidity and mortality among patients with multiple myeloma (MM). High cut-off haemodialysis (HCO-HD) has proven to be effective in the removal of serum light chains but the effect on clinical outcomes, especially renal recovery, remains uncertain. Methods A systematic review and meta-analysis were performed examining all randomized controlled trials (RCTs) and observational studies (OBSs) assessing the effect of HCO-HD on clinical outcomes of patients with MM complicated by cast nephropathy–induced severe AKI. The primary outcome was all-cause mortality at the end of the study. The secondary outcomes included all-cause mortality at 12 months, HD independence and serum kappa and lambda light chain reduction. Pooled analysis was performed using random effects models. Results We identified five studies, comprising two RCTs and three retrospective cohort studies, including 276 patients with a mean follow-up of 18.7 months. The majority of the studies were of suboptimal quality and underpowered. Compared with patients treated with conventional HD, HCO-HD was not associated with a survival benefit at 12 months {five studies, 276 patients, relative risk [RR] 1.02 [95% confidence interval (CI) 0.76–1.35], I2 = 33.9%} or at the end of the studies at an average of 34 months [five studies, 276 patients, RR 1.32 (95% CI 0.71–2.45), I2 = 62.0%]. There was no difference in HD independence at 90 days [two trials, 78 patients, RR 2.23 (95% CI 1.09–4.55)], 6 months [two studies, 188 patients, RR 1.19 (95% CI 0.68–2.06)] or 12 months [two studies, 188 patients, RR 1.14 (95% CI 0.58–2.26)]. Patients receiving HCO dialysis, however, had a greater reduction in serum kappa [two studies, 188 patients, weighted mean difference (WMD) 46.7 (95% CI 38.6–54.7), I2 =  52.0%] and lambda [two studies, 188 patients, WMD 50.3 (95% CI 21.4–79.3), I2 = 95.1%] light chain levels. Conclusion Current evidence from RCTs and OBSs suggests HCO dialysis is able to reduce serum free light chains but makes no significant improvement in all-cause mortality and renal outcomes compared with conventional HD for patients with myeloma cast nephropathy. However, there is a trend towards better renal outcomes with the use of HCO dialysis. The lack of long-term data and the small sample sizes of the included studies limit this analysis. Therefore further large-scale RCTs with longer follow-up are needed to assess the effect of HCO dialysis on clinical outcomes in patients with myeloma cast nephropathy.

scholarly journals Serum Free Light Chains Removal by HFR Hemodiafiltration in Patients with Multiple Myeloma and Acute Kidney Injury: a Case Series

2018 ◽  
Vol 43 (4) ◽  
pp. 1263-1272 ◽  
Author(s):  
Paolo Menè ◽  
Elisa Giammarioli ◽  
Claudia Fofi ◽  
Giusy Antolino ◽  
Giacinto La Verde ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Acute Kidney Injury ◽  
Case Series ◽  
Kidney Injury ◽  
Light Chains ◽  
Free Light Chains ◽  
Serum Free ◽  
Serum Free Light Chains

scholarly journals Morphological and immunohistochemical predictors of renal response to therapy patients with myeloma cast nephropathy and dialysis-dependent acute kidney injury

2020 ◽  
Vol 92 (7) ◽  
pp. 63-69
Author(s):  
I. G. Rekhtina ◽  
E. V. Kazarina ◽  
E. S. Stolyarevich ◽  
A. M. Kovrigina ◽  
V. N. Dvirnyk ◽  
...  
Keyword(s):  
Acute Kidney Injury ◽  
Prognostic Value ◽  
Interstitial Fibrosis ◽  
Kidney Injury ◽  
Response To Therapy ◽  
Tubular Damage ◽  
Renal Response ◽  
Cast Nephropathy ◽  
Myeloma Cast Nephropathy ◽  
E Cadherin

Aim.Reveal morphological and immunohistochemical predictors of reversibility of dialysis-dependent acute kidney injury (AKI) in patients with myeloma cast nephropathy (MCN) based on the study of kidney biopsy. Materials and methods.Renal pathological findings were studied in 36 patients with MCN and dialysis-dependent stage 3 AKI (AKIN, 2012). The study of biopsy samples was performed by a semi-quantitative and quantitative analysis using computer morphometry. The expression of E-cadherin, vimentin and-smooth muscle actin was determined immunohistochemically in the tubular cells and interstitium. Induction therapy for 26 patients was carried out to bortezomib-based programs; in 10 patients other schemes were used. A comparative analysis of morphological changes in nephrobiopathy depending on the renal response was performed in patients with achieved hematologic remission. Results.Improved renal function was observed only in patients with hematologic response to therapy. There were no differences in the number of sclerotic glomeruli, protein casts, the area of inflammatory interstitial infiltration, and the degree of acute tubular damage in patients with and without renal response. In patients with renal response compared with patients without improving renal function, the area of interstitial fibrosis was less (24.9% and 45.9%, respectively;p=0.001), and the area of E-cadherin expression was larger (15.9% and 7.1%, respectively;p=0.006). Interstitial fibrosis of 40% or more and/or the area of expression of E-cadherin less than 10% of the area of tubulo-interstitium have an unfavorable prognostic value in achieving a renal response in MCN. Conclusion.If the interstitial fibrosis area is 40% or more and the expression area of E-cadherin is less than 10%, the probability of the absence of a renal response is 93.3% (OR=24.5) even when a hematological response to induction therapy is achieved. The number of protein casts, the prevalence of acute tubular damage and inflammatory interstitial infiltration have not prognostic value.

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