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Carotid Artery Reactivity Predicts Events in Peripheral Arterial Disease Patients.

van Mil, ACCM, Pouwels, S, Wilbrink, J, Warlé, MC and Thijssen, DHJ (2017) Carotid Artery Reactivity Predicts Events in Peripheral Arterial Disease Patients. Annals of Surgery. ISSN 0003-4932

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Abstract

OBJECTIVE: Patients with peripheral arterial disease (PAD) have increased risk on future cerebro- and cardiovascular events. Our aim was to examine whether carotid artery reactivity (CAR; a novel, simple procedure to examine endothelial function) predicts cardiovascular events in PAD patients. BACKGROUND: Increased risk for future cardiovascular events in PAD patients is likely related to endothelial dysfunction, highlighting the necessity for simple assessment of endothelial function. METHODS: A total of 172 PAD patients (68 ± 10 years, 67% male) underwent the CAR, which involves ultrasound measurement of carotid artery diameter during sympathetic stimulation produced by 90-second hand immersion in 4°C ice-water (ie, cold pressor test). CAR-responses were dichotomized into carotid constriction or dilation. We recorded cardiac and cerebrovascular events, mortality, and clinical progression to percutaneous transluminal angioplasty or loss of patency during 12-month follow-up. RESULTS: Eighty-two PAD patients demonstrated carotid constriction and 90 patients demonstrated dilation. PAD patients with carotid constriction showed more cardiovascular events compared to patients with dilation (Kaplan-Meier Log rank; P < 0.05). Cox proportional hazard models showed that patients with carotid constriction continued to show higher risk for cardiovascular events [hazard ratio: 4.1; 95% confidence interval (CI), 1.3-12.5] and clinical progression (hazard ratio: 2.0; 95% CI, 1.2-3.3), even after adjustment for other risk factors. Ankle brachial pressure index and carotid intima-medial thickness alone did not predict (cardiovascular) event or improve risk assessment beyond that provided by CAR. CONCLUSION: Carotid vasoconstriction identifies PAD patients with a 4-fold increased risk for future cardiovascular events and 2-fold increased risk for clinical deterioration. CAR provides a simple, novel strategy to predict cardiovascular events and progression in PAD patients. CLINICAL TRIAL REGISTRATION: www.trialregister.nl/trialreg/index.asp, NTR-4117.

Item Type: Article
Additional Information: This is the accepted version of the following article: van Mil, Anke C. C. M. MSc; Pouwels, Sjaak PhD; Wilbrink, Jelmer MSc; Warlé, Michiel C. MD; Thijssen, Dick H. J. PhD Carotid Artery Reactivity Predicts Events in Peripheral Arterial Disease Patients. Annals of Surgery. 23/10/2017 http://dx.doi.org/10.1097/SLA.0000000000002558
Uncontrolled Keywords: 11 Medical And Health Sciences
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Lippincott, Williams & Wilkins
Related URLs:
Date Deposited: 30 Oct 2017 11:43
Last Modified: 15 Sep 2018 05:11
DOI or Identification number: 10.1097/SLA.0000000000002558
URI: http://researchonline.ljmu.ac.uk/id/eprint/7438

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