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• W2126976494 abstract "<h3>Objective</h3> To investigate the prognostic value of baseline and temporal changes in red cell distribution width (RDW) in patients undergoing transcatheter aortic valve implantation (TAVI). <h3>Design</h3> Single-centre retrospective observational study. <h3>Setting</h3> Tertiary cardiac centre. <h3>Patients</h3> 175 patients undergoing TAVI were included in this study. <h3>Main outcome measure</h3> Survival. <h3>Results</h3> We analysed data from 175 TAVI patients (mean (±SD) age 83±7 years, 49% men, mean Logistic EuroSCORE 23±1, 66% preserved left ventricular ejection fraction (LVEF)). Immediately pre-TAVI, mean RDW was 14.6±1.6% with an RDW>15% in 29% of patients. Over median follow-up of 12 months, the median rate of change in RDW was 0.2% per month, and 51 (29%) patients died. On multivariate survival analyses, baseline RDW≥15.5% predicted death (adjusted HR 2.70, 95% CI 1.40 to 5.22, p=0.003) independently of LVEF, transfemoral approach, baseline pulmonary artery systolic pressure, moderate/severe mitral regurgitation and body mass index. A greater rate of increase in RDW over time was associated with increased mortality (adjusted HR 1.11, 95% CI 1.04 to 1.18, p=0.001) independently of baseline RDW and other significant temporal variables including a change in creatinine, bilirubin, mean cell haemoglobin concentration or urea. An increase in RDW>0.1%/month was associated with a twofold increased risk of mortality. <h3>Conclusions</h3> Baseline RDW≥15.5% and a rising RDW over time strongly correlate to an increased risk of death post-TAVI, and could be used to refine risk stratification. Investigating and ameliorating the causes of RDW expansion may improve survival." @default.
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• W2126976494 date "2013-06-04" @default.
• W2126976494 modified "2023-10-18" @default.
• W2126976494 title "Progressive rise in red cell distribution width is associated with poor outcome after transcatheter aortic valve implantation" @default.
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• W2126976494 doi "https://doi.org/10.1136/heartjnl-2013-303910" @default.
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