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Two-year vascular event rates in patients with symptomatic cerebrovascular disease: the REACH registry
Narayanaswamy Venketasubramanian1, Joachim Röther, Deepak L Bhatt
1Division of Neurology, National University Hospital, Singapore.
Insights
Patients with symptomatic cerebrovascular disease (CeVD) face high rates of vascular events, including stroke and cardiovascular death, within two years. Recurrent strokes are more frequent than heart attacks in this high-risk group.
Area of Science:
- Cardiovascular Medicine
- Neurology
- Clinical Research
Background:
- Vascular outcome data in cerebrovascular disease (CeVD) patients are limited in practice-based studies.
- The REduction of Atherothrombosis for Continued Health (REACH) Registry provides a platform for such research.
Purpose of the Study:
- To report 2-year vascular outcomes in symptomatic CeVD patients.
- To identify predictors of vascular events in this population.
Main Methods:
- Prospective cohort study of stable outpatients with established atherothrombosis or multiple risk factors.
- Analysis of vascular events including stroke, myocardial infarction (MI), cardiovascular death, and hospitalizations.
- Inclusion of 18,189 symptomatic CeVD patients from the REACH Registry.
Main Results:
- At 2 years, symptomatic CeVD patients experienced a 5.93% rate of non-fatal stroke and 4.45% cardiovascular death.
- The combined vascular endpoint occurred in 11.48% of patients.
- Patients with CeVD, coronary artery disease, and peripheral artery disease had the highest event rates.
- Age, diabetes, smoking, and carotid disease were predictors of vascular events.
Conclusions:
- Symptomatic CeVD patients exhibit high vascular event rates despite ongoing treatment.
- Non-fatal recurrent stroke is a more prevalent event than non-fatal myocardial infarction in this cohort.
Background And Purpose:
Few practice-based studies have reported vascular outcome events among patients with cerebrovascular disease (CeVD). We describe 2-year vascular outcomes among symptomatic CeVD patients from the REduction of Atherothrombosis for Continued Health (REACH) Registry.
Methods:
Vascular events (stroke; myocardial infarction, MI; cardiovascular death, CV death; hospitalization) were studied among symptomatic CeVD patients from a prospective cohort of stable outpatients with established atherothrombosis or ≥3 atherothrombotic risk factors.
Results:
Of the 69,055 patients in REACH, 18,992 (28%) had symptomatic CeVD, of which outcome data were available for 18,189 patients. At 2 years, the frequency of non-fatal stroke was 5.93% (95% CI 5.22-6.64), non-fatal MI 2.21% (95% CI 1.65-2.76), CV death 4.45% (95% CI 3.66-5.22), combined vascular endpoint 11.48% (95% CI 10.46-12.49), and all deaths 7.39% (95% CI 6.34-8.42). The frequency of stroke, MI, CV death, or hospitalization for atherothrombotic events was 21.05% (95% CI 20.05-22.03). Event rates were lowest among patients with CeVD alone and highest among patients with CeVD, coronary artery disease, and peripheral artery disease. Other predictors of the primary outcome were increasing age, history of diabetes, current smoking, asymptomatic carotid stenosis, and carotid plaque. Outcomes were similar across geographical regions.
Conclusions:
Symptomatic CeVD patients encounter high vascular event rates despite treatment. Recurrent nonfatal stroke is more common than nonfatal MI.
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