Intima-media thickness at the near or far wall of the common carotid artery in cardiovascular risk assessment

Lisa Seekircher, Lena Tschiderer, Lars Lind, Maya S Safarova, Maryam Kavousi, M Arfan Ikram, Eva Lonn, Salim Yusuf, D. Grobbee, John J P Kastelein, Frank L J Visseren, Matthew Walters, Jesse Dawson, Peter Higgins, Stefan Agewall, Alberico Catapano, Eric de Groot, Mark A Espeland, Gerhard Klingenschmid, Dianna MaglianoMichael H Olsen, David Preiss, Dirk Sander, Michael Skilton, Dorota A Zozulińska-Ziółkiewicz, Muriel P C Grooteman, Peter J Blankestijn, Kazuo Kitagawa, Shuhei Okazaki, Maria V Manzi, Costantino Mancusi, Raffaele Izzo, Moise Desvarieux, Tatjana Rundek, Hertzel C Gerstein, Michiel L Bots, Michael J Sweeting, Matthias W Lorenz, Peter Willeit*

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskriftArtikelForskningpeer review

Abstract

AIMS: Current guidelines recommend measuring carotid intima-media thickness (IMT) at the far wall of the common carotid artery (CCA). We aimed to precisely quantify associations of near vs. far wall CCA-IMT with the risk for atherosclerotic cardiovascular disease (CVD, defined as coronary heart disease or stroke) and their added predictive values.

METHODS AND RESULTS: We analysed individual records of 41 941 participants from 16 prospective studies in the Proof-ATHERO consortium {mean age 61 years [standard deviation (SD) = 11]; 53% female; 16% prior CVD}. Mean baseline values of near and far wall CCA-IMT were 0.83 (SD = 0.28) and 0.82 (SD = 0.27) mm, differed by a mean of 0.02 mm (95% limits of agreement: -0.40 to 0.43), and were moderately correlated [r = 0.44; 95% confidence interval (CI): 0.39-0.49). Over a median follow-up of 9.3 years, we recorded 10 423 CVD events. We pooled study-specific hazard ratios for CVD using random-effects meta-analysis. Near and far wall CCA-IMT values were approximately linearly associated with CVD risk. The respective hazard ratios per SD higher value were 1.18 (95% CI: 1.14-1.22; I² = 30.7%) and 1.20 (1.18-1.23; I² = 5.3%) when adjusted for age, sex, and prior CVD and 1.09 (1.07-1.12; I² = 8.4%) and 1.14 (1.12-1.16; I²=1.3%) upon multivariable adjustment (all P < 0.001). Assessing CCA-IMT at both walls provided a greater C-index improvement than assessing CCA-IMT at one wall only [+0.0046 vs. +0.0023 for near (P < 0.001), +0.0037 for far wall (P = 0.006)].

CONCLUSIONS: The associations of near and far wall CCA-IMT with incident CVD were positive, approximately linear, and similarly strong. Improvement in risk discrimination was highest when CCA-IMT was measured at both walls.

OriginalsprogEngelsk
Artikelnummeroead089
TidsskriftEuropean heart journal open
Vol/bind3
Udgave nummer5
DOI
StatusUdgivet - sep. 2023

Bibliografisk note

© The Author(s) 2023. Published by Oxford University Press on behalf of the European Society of Cardiology.

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