The purpose of this study is to characterise, in detail, the cardiac structure, function and perfusion of those on haemodialysis and haemodiafiltration, comparing the two modalities to ascertain if haemodiafiltration provides relative myocardial protection compared to conventional haemodialysis.
Trial Configuration: Non-blinded crossover pilot study Setting: Secondary care Sample size estimate: This is a pilot study therefore power calculations are not appropriate. A group size of 12 participants has been selected for feasibility. Number of participants: 12 patients to complete study Description of interventions * 6 sessions of conventional haemodialysis each lasting 4 hours * 6 sessions of online haemodiafiltration each lasting 4 hours * 2 sessions of Cardiac MRI each lasting 6 hours in total to take place around 6th session of dialysis Randomisation and blinding: This is an open study. Statistical methods: All continuous variables will be tested for normality. The primary and continuous secondary endpoints will be compared between the two modalities using a paired t test or Wilcoxon signed rank test as appropriate. The association between categorical variables will be tested using the Chi squared or Fischer's Exact test. An alpha error at 0.05 will be judged as significant.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE
Enrollment
12
Effects of high efficiency online hemodiafiltration on cardiac structure, function and myocardial perfusion were compared with standard haemodialysis.
Effects of high efficiency online hemodiafiltration on cardiac structure, function and myocardial perfusion were compared with standard haemodialysis.
The change in global cardiac perfusion (ml/min/100g) between conventional HD and HDF
Time frame: 2 week
The change in segmental cardiac perfusion during conventional HD and HDF
Time frame: 2 week
The change in global and segmental cardiac function as measured by phase-contrast MRI
Time frame: 2 week
Serum markers of cardiac damage, renal, liver function, clotting, full blood count
Bloods collected at the end of 2 week study period on the scan days on HD and HDF
Time frame: 2 weeks
Reported tolerability of cardiac MRI scanning whilst having dialysis
On 2 MRI study days
Time frame: On 2 MRI study days
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