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Impact of High-Cut-Off Dialysis on Renal Recovery in Dialysis-Dependent Multiple
Myeloma Patients: Results from a Case-Control Study
#MMPMID27152520
Gerth HU
; Pohlen M
; Görlich D
; Thölking G
; Kropff M
; Berdel WE
; Pavenstädt H
; Brand M
; Kümpers P
PLoS One
2016[]; 11
(5
): e0154993
PMID27152520
show ga
BACKGROUND: High-cut-off hemodialysis (HCO-HD) can effectively reduce high
concentrations of circulating serum free light chains (sFLC) in patients with
dialysis-dependent acute kidney injury (AKI) due to multiple myeloma (MM).
Therefore, the aim of this study was to analyze renal recovery in a retrospective
single-center cohort of dialysis-dependent MM patients treated with either
conventional HD (conv. HD) or HCO-HD. METHODS AND RESULTS: The final cohort
consisted of 59 patients treated with HCO-HD (n = 42) or conv. HD (n = 17). A
sustained sFLC response was detected in a significantly higher proportion of
HCO-HD patients (83.3%) compared with conv. HD patients (29.4%; p = 0.007). The
median duration of sFLC required to reach values <1000 mg/l was 14.5 days in the
HCO-HD group and 36 days in the conv. HD group. The corresponding rates of renal
recovery were 64.3% and 29.4%, respectively (chi-squared test, p = 0.014).
Multivariate regression and decision tree analysis (recursive partitioning)
revealed HCO-HD (adjusted odds ratio [OR] 6.1 [95% confidence interval (CI)
1.5-24.5], p = 0.011) and low initial uric acid values (adjusted OR 1.3 [95%CI
1.0-1.7], p = 0.045) as independent and paramount variables associated with a
favorable renal outcome. CONCLUSIONS: In summary, the results from this
retrospective case-control study suggest in addition to novel agent-based
chemotherapy a benefit of HCO-HD in sFLC removal and renal outcome in
dialysis-dependent AKI secondary to MM. This finding was especially pertinent in
patients with low initial uric acid values, resulting in a promising renal
recovery rate of 71.9%. Further prospective studies are warranted.