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2017 ; 12
(9
): e0184424
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
Effect of dialyzer membrane materials on survival in chronic hemodialysis
patients: Results from the annual survey of the Japanese Nationwide Dialysis
Registry
#MMPMID28910324
Abe M
; Hamano T
; Wada A
; Nakai S
; Masakane I
PLoS One
2017[]; 12
(9
): e0184424
PMID28910324
show ga
BACKGROUND: Little information is available regarding which type of dialyzer
membrane results in good prognosis in patients on chronic hemodialysis.
Therefore, we conducted a cohort study from a nationwide registry of hemodialysis
patients in Japan to establish the association between different dialyzer
membranes and mortality rates. METHODS: We followed 142,412 patients on
maintenance hemodialysis (female, 39.1%; mean age, 64.8 ± 12.3 years; median
dialysis duration, 7 [4-12] years) for a year from 2008 to 2009. We included
patients treated with seven types of high-flux dialyzer membranes at baseline,
including cellulose triacetate (CTA), ethylene vinyl alcohol (EVAL),
polyacrylonitrile (PAN), polyester polymer alloy (PEPA), polyethersulfone (PES),
polymethylmethacrylate (PMMA), and polysulfone (PS). Cox regression was used to
estimate the association between baseline dialyzers and all-cause mortality as
hazard ratios (HRs) and 95% confidence intervals for 1-year mortality adjusting
for potential confounders, and propensity score matching analysis was performed.
RESULTS: The distribution of patients treated with each membrane was as follows:
PS (56.0%), CTA (17.3%), PES (12.0%), PEPA (7.5%), PMMA (4.9%), PAN (1.2%), and
EVAL (1.1%). When data were adjusted using basic factors, with PS as a reference
group, the mortality rate was significantly higher in all groups except for the
PES group. When data were further adjusted for dialysis-related factors, HRs were
significantly higher for the CTA, EVAL, and PEPA groups. When the data were
further adjusted for nutrition-and inflammation-related factors, HRs were
significantly lower for the PMMA and PES groups compared with the PS group. After
propensity score matching, HRs were significantly lower for the PMMA group than
for the PS group. CONCLUSION: The results suggest that the use of different
membrane types may affect mortality in hemodialysis patients. However, further
long-term prospective studies are needed to clarify these findings, including
whether the use of the PMMA membrane can improve prognosis.