ALB and myalgic encephalomeyelitis/chronic fatigue syndrome: In both SAVR and TAVR, previous studies have shown a higher mortality following TAVR in patients with significant MR than in those without.17–20 Moreover, higher CFS, prior CABG, lower serum haemoglobin concentration and lower serum albumin concentration were associated with 1-year mortality after Em-TAVR (online supplemental table 4).