A New study Suggests After Many Years of AA, Risk of Heart Attacks May Increase
Recent studies are emerging which suggest that patients with alopecia areata may be at increased risk for heart disease. A study by Conic and colleagues, for example, suggested that patients with alopecia areata had elevated prevalence rates of several conditions including hypertension, diabetes, and hyperlipidemia, coronary artery disease, atrial fibrillation and stroke.
New Study From Korea Highlights Unexpected Pattern of Heart Attack Risk
A new study from Korea suggests that the risk of patients with alopecia areata having a heart attack depends one how many years have transpired since one’s receipt of a diagnosis of alopecia areata.
The authors performed a retrospective cohort study looking at patients 30 to 89 who were diagnosed with alopecia areata between 2006 and 2017. Data was compared to age and sex matched controls.
Thee researchers identified 228 886 patients with AA in their study and compared data to 4 577 720 matched controls without AA.
In the first few years after a diagnosis of AA, the risk of acute myocardial infarction (heart attack) was actually found to be lower in patients with alopecia areata than controls. For example, the rate of heart attacks was 2 fold lower between years 2-4 after a diagnosis than the rate of heart attacks in control patients. As time went one, the risk of heart attacks in patients with alopecia areata increased more and more and eventually the risk of heart attacks became greater for those with alopecia areata than controls. For example, between years 8-10 after their original diagnosis, patients with alopecia areata were found to have a 2 fold greater risk of having a heart attack than controls. Between years 10-12 the risk was 4.5 fold higher.
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