Abstract
Rheumatoid arthritis (RA) is an autoimmune chronic inflammatory disease affecting 0.5%-1%of adults worldwide. The carotid intima-media thickness (CIMT) is a simple, reliable, noninvasive marker for subclinical atherosclerosis. The aim of this study was to compare the intima-media thickness of the common carotid artery in patients with RAwith that of healthy patients. In this case-control study, subjects were recruited from the patients who presented to a private rheumatology clinic. RAwas documented by a rheumatologist. All subjects underwent an ultrasound examination of the carotid artery to assess CIMT. Subjects with RA filled out the disease activity score (DAS28) questionnaire. Sixty-two subjects (31 subjects with RA and 31 healthy subjects) took part in the study. The mean age of the subjects in the RA and the control groups was 42.39 ± 12.98 and 44.48 ± 13.56 years, respectively. Values of CIMT were significantly greater in RA subjects compared with their healthy counterparts (p < 0.001). The CIMTincreased significantly with increased disease severity (r = 0.73). Subjects were divided into two age groups (≤40and >40 years). A comparison of CIMT in the mentioned subgroups revealed a remarkable difference in CIMT values between those of the RA patients and those of their control counterparts in both age groups(p = 0.002 and p < 0.001 for those below and above 40 years, respectively). CIMT could be used as an efficient clinical index for identifying the early stages of atherosclerosis and predicting cardiovascular events following atherosclerosis in RA patients.
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