We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Association of progressive thoracic aortic calcification with future cardiovascular events and all-cause mortality: ability to improve risk prediction? Results of the Heinz Nixdorf Recall (HNR) study.
- Authors
Kälsch, Hagen; Mahabadi, Amir A; Moebus, Susanne; Reinsch, Nico; Budde, Thomas; Hoffmann, Barbara; Stang, Andreas; Jöckel, Karl-Heinz; Erbel, Raimund; Lehmann, Nils
- Abstract
Aims Thoracic aortic calcification (TAC) is measured by computed tomography (CT). We investigated the association of TAC-progression with incident cardiovascular (CV) events and all-cause mortality in a population-based cohort and to determine its predictive value for these endpoints. Methods and results In 3080 participants (45–74 years, 53.6% women), risk factors and TAC via CT were measured at baseline and at a second examination after 5.1 ± 0.3 years. Hard coronary, hard CV events as well as CV events including revascularization and all-cause mortality were recorded during a follow-up time of 7.8 ± 2.2 years after the second CT scan. Cox regression analysis determined the association of TAC-progression with observed endpoints. The predictive value of TAC-progression was assessed using Harrell's C index. We observed 81 hard coronary, 154 hard CV, 231 CV events including revascularization, and 266 deaths. In the crude analysis, event rates increased continuously with the level of TAC-change over 5 years for all endpoints. After adjustment, the significant association of TAC-progression with hard CV events [hazard ratio (HR) 1.28, 95% confidence interval (CI) 1.05–1.57] and all-cause mortality (HR 1.34, 95% CI 1.14–1.58) persisted, per one standard deviation increase in TAC-progression (log(TAC + 1)). Regarding aortic segments separately, HRs were consistently higher for descending thoracic aorta. When adding TAC (baseline and progression) to the model containing classical risk factors and coronary artery calcification (CAC), Harrell's C indices did not increase for any of the observed endpoints. Conclusion TAC-progression is associated with incident hard CV events and all-cause mortality but fails to improve event prediction over CAC.
- Subjects
CARDIOVASCULAR disease related mortality; CARDIOVASCULAR diseases risk factors; COMPUTED tomography; CONFIDENCE intervals; RISK assessment; PROPORTIONAL hazards models; DESCRIPTIVE statistics; CALCINOSIS; THORACIC aorta; DISEASE complications
- Publication
European Heart Journal - Cardiovascular Imaging, 2019, Vol 20, Issue 6, p709
- ISSN
2047-2404
- Publication type
Article
- DOI
10.1093/ehjci/jey173