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Intensive lipid lowering in patients with rheumatoid arthritis and previous myocardial infarction: an explorative
Anne G Semb1, Ingar Holme, Tore K Kvien
1Department of Rheumatology, Diakonhjemmet Hospital, NO-0319 Oslo, Norway. a-semb@diakonsyk.no
Insights
Rheumatoid arthritis (RA) patients with coronary heart disease (CHD) experienced similar cardiovascular event rates and lipid reductions with statin therapy compared to those without RA. These findings highlight effective secondary prevention in RA patients, despite lower baseline cholesterol levels.
Area of Science:
- Cardiology
- Rheumatology
- Pharmacology
Background:
- Rheumatoid arthritis (RA) significantly increases the risk of coronary heart disease (CHD).
- Secondary prevention strategies, including statin use, are crucial for RA patients with established CHD.
- Limited data exists on statin efficacy in RA patients with CHD.
Purpose of the Study:
- To evaluate the effect of statin treatment on lipid levels in RA patients with CHD.
- To assess the incidence of cardiovascular disease (CVD) events in RA patients undergoing statin therapy.
- To compare outcomes in RA patients versus the general population within the IDEAL study.
Main Methods:
- Exploratory analysis of the IDEAL study, including 87 RA patients with prior myocardial infarction (MI).
- Patients were randomized to atorvastatin 80 mg or simvastatin 20-40 mg daily.
- Lipid levels and composite secondary endpoint (any CVD event) were analyzed over 4.8 years.
Main Results:
- RA patients exhibited lower baseline total and LDL cholesterol levels compared to non-RA patients.
- Both atorvastatin and simvastatin demonstrated comparable lipid-lowering effects in RA patients.
- Cardiovascular event rates were similar between RA patients (26.4%) and the general IDEAL population (28.7%).
Conclusions:
- Statin therapy provides comparable lipid-lowering efficacy in RA patients with previous MI as in the general population.
- RA patients with previous MI experienced similar rates of cardiovascular events compared to their non-RA counterparts.
- Lower baseline cholesterol in RA patients did not alter the effectiveness of statin treatment or CVD event rates.
Objectives:
Documentation on secondary prevention with statins in RA patients with coronary heart disease (CHD) is limited, despite the increased risk of CHD in RA. Our objective was to describe the effect of statin treatment on lipid levels and cardiovascular disease (CVD) events in patients with RA who participated in the incremental decrease in endpoints through aggressive lipid lowering (IDEAL) study.
Methods:
Patients with previous myocardial infarction (MI) were randomly assigned to atorvastatin 80 mg daily or simvastatin 20-40 mg daily and followed for 4.8 years. We focused on changes in lipid levels in the current exploratory analyses and used the composite secondary endpoint in the IDEAL study: any CVD event. Out of the 8888 patients in the IDEAL study, 87 had RA.
Results:
RA patients had significantly lower baseline levels of total- and low-density lipoprotein (LDL) cholesterol than patients without RA; 4.8 + 1.0 vs 5.1 + 1.0 (P = 0.023) and 2.9 + 0.9 vs 3.1 + 0.9 mmol/l (P = 0.034) for total cholesterol and LDL, respectively. The lipid reductions with either simvastatin or atorvastatin were comparable. Cardiovascular events occurred in 23/87 (26.4%) of the RA patients compared with 2523/8801 (28.7%; P = 0.70) in the general IDEAL population. The occurrence of these events was not related to the duration of RA, age, gender or treatment assignment.
Conclusion:
Patients with RA and previous MI had comparable lipid-lowering effect and similar rates of cardiovascular events as those without RA, although the RA patients had lower baseline cholesterol levels than patients without RA.
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