Key result
Premature AMI in young patients features high smoking rates, single-vessel disease, and ~10-20% nonobstructive coronaries.
Why the study?
The proportion of young individuals presenting with AMI has increased in recent years, and despite less extensive coronary atherosclerosis, their long-term prognosis is not benign.
Answers are grounded in this paper and cite their sources.
Investigates causes and treatment of premature myocardial infarction in young adults, suggesting specific interventions.
Among patients presenting with acute myocardial infarction (AMI), the proportion of young individuals has increased in recent years. Although coronary atherosclerosis is less extensive in young patients with AMI, with higher prevalence of single-vessel disease and rare left main involvement, the long-term prognosis is not benign. Young patients with AMI with obstructive coronary artery disease have similar risk factors as older patients except for higher prevalence of smoking, lipid disorders, and family history of premature coronary artery disease, and lower prevalence of diabetes mellitus and hypertension. Smoking cessation is by far the most effective secondary preventive measure. Myocardial infarction with nonobstructive coronary arteries is a relatively common clinical entity (10%-20%) among young patients with AMI, with intravascular and cardiac magnetic resonance imaging being key for diagnosis and potentially treatment. Spontaneous coronary artery dissection is a frequent pathogenetic mechanism of AMI among young women, requiring a high degree of suspicion, especially in the peripartum period.
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Rallidis et al. (2022) conducted a review in Premature Myocardial Infarction. Premature acute myocardial infarction in young patients is characterized by a high prevalence of smoking, single-vessel disease, and a 10% to 20% rate of nonobstructive coronary arteries.
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