Objective
To study left ventricular (LV) geometry in patients with rheumatoid arthritis (RA) who have no heart failure (HF) versus subjects without either RA or HF, and to determine the impact of RA on LV remodeling.
Methods
A cross-sectional, community-based study was conducted among adult (≥50 years) RA patients and age- and sex-matched non-RA subjects without a history of HF. All participants underwent a standard 2D/Doppler echocardiography. LV geometry was classified into four categories based on relative wall thickness and sex-specific cut-offs for LV mass index: concentric remodeling, concentric hypertrophy, eccentric hypertrophy, or normal geometry.
Results
The study included 200 RA patients and 600 matched non-RA subjects (mean age 65; 74% female in both cohorts). RA patients were significantly more likely to have abnormal LV geometry than non-RA subjects (odds ratio [OR] 1.44; 95% confidence interval [CI] 1.03, 2.00), adjusting for cardiovascular risk factors and comorbidities. Among those with abnormal LV geometry, RA patients had significantly increased odds of concentric LV remodeling (OR 4.73; 95% CI 2.85, 7.83). In linear regression analyses, LV mass index appeared to be lower in RA patients currently using corticosteroids (Beta +/− standard error: −0.082 +/− 0.027; p=0.002), adjusting for cardiovascular risk factors and comorbidities.
Conclusion
RA was strongly associated with abnormal LV remodeling, particularly, with concentric LV remodeling, among patients without HF. This association was significant beyond adjustment for cardiovascular risk factors and comorbidities. RA disease related factors may promote changes in LV geometry. The biological mechanisms underlying LV remodeling warrant further investigation.