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Ischemic arterial events and atherosclerosis in patients with systemic sclerosis: a population based case-control study
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2013 (English)In: Arthritis Research & Therapy, ISSN 1478-6362, Vol. 15, R87- p.Article in journal (Refereed) Published
Abstract [en]

INTRODUCTION: While microvascular disease is well described in systemic sclerosis (SSc), it is still unclear whether the occurrence of ischemic macrovascular events and atherosclerosis is enhanced among patients with SSc.

METHODS: In this study, 111 SSc patients (74 % of prevalent cases in Stockholm County) and 105 age and sex comparable population controls were investigated. Previous ischemic arterial events were tabulated. As surrogate measures of atherosclerosis, plaque occurrence and intima media thickness (IMT) were determined with carotid ultrasound and the ankle brachial index (ABI) was calculated. Traditional cardiovascular risk factors were recorded and we also measured biomarkers indicating systemic inflammation and endothelial activation/dysfunction.

RESULTS: Mean age was 62 +/- 12 years for patients and controls. Ischemic arterial events were more common, due to increased occurrence of ischemic heart disease (IHD) and ischemic peripheral vascular disease (IPVD), in the patient group (12% vs. 4% p=0.03 and 9% vs. 0%, P=0.003 respectively). On a group level there was no difference regarding the occurrence of ischemic cerebrovascular disease, the frequency of plaques, IMT or ABI between SSc patients and controls. Subgroup analyses revealed that patients with anti-centromere antibodies (ACA+) had more plaques and more ischemic arterial events compared to other SSc patients (67% vs. 39% and 32% vs. 11%; P=0.006 and P=0.01, respectively) and compared to controls (67% vs. 41% and 32% vs. 7%, P=0.02 and P=0.0003, respectively). Biomarkers of inflammation/endothelial activation were generally increased among SSc patients.

CONCLUSIONS: Patients with SSc are at enhanced risk for IHD and IPVD. The ACA+ SSc subgroup was particularly affected with both ischemic arterial events and premature atherosclerosis. The microvascular vulnerability of ACA+ patients is previously well documented. We demonstrate that ACA+ SSc patients have an enhanced risk of macrovascular injury as well. This group should be followed closely and modifiable cardiovascular risk factors should be treated at an early stage.

Place, publisher, year, edition, pages
2013. Vol. 15, R87- p.
National Category
Rheumatology and Autoimmunity
URN: urn:nbn:se:uu:diva-206025DOI: 10.1186/ar4267ISI: 000330628300017PubMedID: 23945149OAI: oai:DiVA.org:uu-206025DiVA: diva2:643265
Available from: 2013-08-26 Created: 2013-08-26 Last updated: 2014-03-20Bibliographically approved

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