UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Expansion of the red cell distribution width and evolving iron deficiency as predictors of poor outcome in chronic heart failure

Aung, N; Ling, HZ; Cheng, AS; Aggarwal, S; Flint, J; Mendonca, M; Rashid, M; ... Okonko, DO; + view all (2013) Expansion of the red cell distribution width and evolving iron deficiency as predictors of poor outcome in chronic heart failure. International Journal of Cardiology , 168 (3) pp. 1997-2002. 10.1016/j.ijcard.2012.12.091.

Full text not available from this repository.

Abstract

Background An elevated red cell distribution width (RDW) and iron deficiency (ID) at baseline predict enhanced mortality in chronic heart failure (CHF), but little is known about the prognostic implications of their temporal trends. We sought to determine the survival implications of temporal changes in RDW and evolving ID in patients with CHF. Methods The relation between red cell indices on first consultation and over time with mortality in 274 stable patients with systolic CHF was analysed. The combination of a rising RDW with a falling mean cell volume (MCV) over time defined evolving ID. Results Over a median 12 month period, 51% and 23% of patients had a rise in RDW and evolving ID, respectively. After a median follow-up of 27 months, 60 (22%) patients died. A rising RDW predicted enhanced all-cause mortality (unadjusted HR for 1% per week rise 9.27, 95% CI 3.58 to 24.00, P < 0.0001) independently and incrementally to baseline RDW, with an absolute increase > 0.02% per week optimally predictive. Evolving ID also related to higher rates of mortality (HR 2.78, 95% CI 1.64 to 4.73, P < 0.001) and was prognostically worse than a rising RDW alone (P < 0.005). Patients with evolving ID who maintained their Hb levels over time had a 2-fold greater risk of death than those whose Hb levels declined without evolving ID. Conclusions An expanding RDW and evolving iron deficiency over time predict an amplified risk of death in CHF and should be utilised for risk stratification and/or therapeutically targeted to potentially improve outcomes. © 2013 Elsevier Ireland Ltd. All rights reserved.

Type: Article
Title: Expansion of the red cell distribution width and evolving iron deficiency as predictors of poor outcome in chronic heart failure
DOI: 10.1016/j.ijcard.2012.12.091
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > UCL Medical School
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > Inst of Clinical Trials and Methodology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > Inst of Clinical Trials and Methodology > MRC Clinical Trials Unit at UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Pop Health Sciences > Institute of Cardiovascular Science
URI: http://discovery.ucl.ac.uk/id/eprint/1396692
Downloads since deposit
0Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item