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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Medicine+(Baltimore)
2016 ; 95
(40
): e5083
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Maximizing kidneys for transplantation using machine perfusion: from the past to
the future: A comprehensive systematic review and meta-analysis
#MMPMID27749583
Hameed AM
; Pleass HC
; Wong G
; Hawthorne WJ
Medicine (Baltimore)
2016[Oct]; 95
(40
): e5083
PMID27749583
show ga
BACKGROUND: The two main options for renal allograft preservation are static cold
storage (CS) and machine perfusion (MP). There has been considerably increased
interest in MP preservation of kidneys, however conflicting evidence regarding
its efficacy and associated costs have impacted its scale of clinical uptake.
Additionally, there is no clear consensus regarding oxygenation, and hypo- or
normothermia, in conjunction with MP, and its mechanisms of action are also
debated. The primary aims of this article were to elucidate the benefits of MP
preservation with and without oxygenation, and/or under normothermic conditions,
when compared with CS prior to deceased donor kidney transplantation. METHODS:
Clinical (observational studies and prospective trials) and animal (experimental)
articles exploring the use of renal MP were assessed (EMBASE, Medline, and
Cochrane databases). Meta-analyses were conducted for the comparisons between
hypothermic MP (hypothermic machine perfusion [HMP]) and CS (human studies) and
normothermic MP (warm (normothermic) perfusion [WP]) compared with CS or HMP
(animal studies). The primary outcome was allograft function. Secondary outcomes
included graft and patient survival, acute rejection and parameters of tubular,
glomerular and endothelial function. Subgroup analyses were conducted in expanded
criteria (ECD) and donation after circulatory (DCD) death donors. RESULTS: A
total of 101 studies (63 human and 38 animal) were included. There was a lower
rate of delayed graft function in recipients with HMP donor grafts compared with
CS kidneys (RR 0.77; 95% CI 0.69-0.87). Primary nonfunction (PNF) was reduced in
ECD kidneys preserved by HMP (RR 0.28; 95% CI 0.09-0.89). Renal function in
animal studies was significantly better in WP kidneys compared with both HMP
(standardized mean difference [SMD] of peak creatinine 1.66; 95% CI 3.19 to 0.14)
and CS (SMD of peak creatinine 1.72; 95% CI 3.09 to 0.34). MP improves renal
preservation through the better maintenance of tubular, glomerular, and
endothelial function and integrity. CONCLUSIONS: HMP improves short-term outcomes
after renal transplantation, with a less clear effect in the longer-term. There
is considerable room for modification of the process to assess whether superior
outcomes can be achieved through oxygenation, perfusion fluid manipulation, and
alteration of perfusion temperature. In particular, correlative experimental
(animal) data provides strong support for more clinical trials investigating
normothermic MP.
|*Kidney Transplantation
[MESH]
|Allografts
[MESH]
|Delayed Graft Function/*prevention & control
[MESH]