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Ann Rheum Dis. 2014 Nov;73(11):1990-6. doi: 10.1136/annrheumdis-2013-203433. Epub 2013 Jul 25.

The Framingham Risk Score underestimates the extent of subclinical atherosclerosis in patients with psoriatic disease.

Author information

1
Centre for Prognosis Studies in the Rheumatic Diseases, University of Toronto Psoriatic Arthritis Clinic, Toronto Western Hospital, Toronto, Ontario, Canada.

Abstract

AIM:

To investigate the usefulness of carotid atherosclerosis assessment in cardiovascular risk stratification of patients with psoriatic disease compared with the Framingham Risk Score (FRS).

METHODS:

Patients with psoriatic arthritis (PsA) and psoriasis alone (PsC), who had no previous history of cardiovascular disease, chronic kidney disease or diabetes mellitus were recruited. They underwent assessment of their cardiovascular risk factors and the FRS was calculated. Based on the FRS, the participants were classified into low, intermediate and high-risk categories. Ultrasound assessment of the carotid artery was performed, and carotid intima-media thickness (cIMT) and total plaque area (TPA) were measured. Patients were stratified into three ultrasound-based risk categories (low, intermediate and high) according to the severity of atherosclerosis. The extent of reclassification from FRS-based category into US-based risk category was assessed.

RESULTS:

A total of 226 patients with psoriatic disease were assessed. FRS correlated moderately with TPA (r=0.36) and cIMT (r=0.37) and explained only 19% of their variability. 56.1% of the patients in the FRS-based low to intermediate risk groups were found to have carotid plaques. 55.9% of the patients from the FRS-based intermediate risk category were reclassified into an ultrasound-based high-risk category, while 47.1% of the patients in the FRS-based low-risk category were reclassified into a higher US-based risk group. The extent of reclassification into a higher risk category was particularly high among patients with PsA.

CONCLUSIONS:

Ultrasound assessment of subclinical atherosclerosis may improve risk stratification of patients with psoriatic disease, particularly of those with PsA.

KEYWORDS:

Cardiovascular Disease; Psoriatic Arthritis; Ultrasonography

PMID:
23887287
DOI:
10.1136/annrheumdis-2013-203433
[Indexed for MEDLINE]

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