Key result
Young patients with MINOCA experienced a high rate of major adverse cardiovascular events, which was comparable to the outcomes of those with obstructive coronary artery disease.
Why the study?
Although ACS is typically caused by plaque erosion, a subset presents without significant obstruction as MINOCA, prompting assessment of clinical features and long-term outcomes in young patients.
Observational (n=122)
No
Answers are grounded in this paper and cite their sources.
Background and Aim: The most common cause of acute coronary syndrome (ACS) is the erosion causing the development of atherosclerotic plaque. There is, however, a subset of individuals with ACS-like symptoms but no significant coronary artery obstruction characterized as myocardial infarction with non-obstructive coronary arteries (MINOCA). The purpose of the present study was to assess the clinical features and long-term outcome of young MI patients with non-obstructive coronary arteries. Patients and Methods: This prospective observational study was carried out on 926 patients underwent coronary angiographies in the Cardiology Department of Medical Teaching Institute (MTI) Lady Reading Hospital, Peshawar from January 2019 to December 2022. All the patients (age ≤45 years) with suspected acute coronary syndrome were enrolled. Participants were categorized into three groups: Group-I [obstructive coronary artery disease (o-CAD)], Group-II (MINOCA diagnosed patients), and Group-III [control (non-coronary artery disease)]. Demographic details, clinical features, and outcomes of patients were recorded. Results: Of the total 926 patients underwent coronary angiographies, about 122 (13.2%) patients were ≤45 years old. Out of 122 patients, the incidence of o-CAD, MINOCA, and control (non-coronary artery disease) was 60.7% (n=74), 13.1% (n=16), and 26.2% (n=32) respectively. Chest pain was the most prevalent symptom found in 95.1% (n=116) group-I, 93.8% (n=15) in group-II, and 81.3% (n=26) respectively. MINOCA patients had similar high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol levels with o-CAD patients, however, the triglyceride values was significantly higher (180.8±90.6) than control (136.2±82.8). Conclusion: The present study found that MINOCA and o-CDA group patients had similar long-term poor outcomes. Triglyceride levels, depression, BMI >30 kg/m2, and family history of CAD are significant risk factors for MINOCA during follow-up. Secondary preventive initiatives are required in these patients to avoid recurrences and enhance outcomes.
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Ullah et al. (2023) conducted an observational in Acute coronary syndrome (n=122). Myocardial infarction with non-obstructive coronary arteries (MINOCA) vs. Obstructive coronary artery disease (o-CAD) was evaluated on Major adverse cardiovascular events (MACE) (p=<0.001). Young patients with MINOCA experienced a high rate of major adverse cardiovascular events, which was comparable to the outcomes of those with obstructive coronary artery disease.
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