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Murine Myocardial Infarction Model using Permanent Ligation of Left Anterior Descending Coronary Artery
Published on: August 16, 2019
Myocardial infarction caused by myocardial bridging in a male adolescent athlete
Cheng-Gang Zhu1, Jun Liu, Wei-Dong Liu
1Division of Dyslipidemia, Cardiovascular Medicine, Fu Wai Hospital, Beijing, China.
Insights
Myocardial bridging, a coronary artery anomaly, can cause heart attack (myocardial infarction) in young athletes. Athletes with this condition require special attention due to potential exercise-induced cardiac events.
Area of Science:
- Cardiology
- Sports Medicine
- Congenital Heart Abnormalities
Background:
- Myocardial bridging is a common congenital coronary artery anomaly.
- It is typically considered a benign anatomical variant.
- However, rare cases link it to myocardial ischemia, infarction, arrhythmias, and sudden death.
Observation:
- An 18-year-old adolescent athlete presented with myocardial infarction.
- Coronary angiography showed significant systolic compression of the left anterior descending artery due to myocardial bridging.
- Symptoms resolved during diastole, indicating dynamic obstruction.
Findings:
- The case highlights myocardial bridging as a cause of myocardial infarction in a young athlete.
- Heavy sports activity was considered a potential trigger for the myocardial infarction.
- The dynamic nature of the coronary artery narrowing was evident.
Implications:
- Adolescent athletes with myocardial bridging warrant careful evaluation.
- Screening and monitoring may be necessary for athletes with this condition.
- Understanding the link between physical exertion and myocardial bridging complications is crucial for prevention.
Abstract:
Myocardial bridging is a common congenital abnormality of a coronary artery, and is usually thought to be a benign anatomical variant. Although rare, previous studies have reported that patients with myocardial bridging may suffer from myocardial ischemia, myocardial infarction (MI), arrhythmias and even sudden death. Here we report the case of an 18-year-old adolescent athlete with myocardial bridging resulting in MI. Coronary angiography revealed 80% luminal narrowing by systolic compression in the proximal and mid segments of the left anterior descending coronary artery, which returned to normal during diastole. We considered that heavy sports might be a potential trigger for his MI attack. Therefore, special attention should be paid to this kind of athlete, especially if adolescent.
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