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Published on: April 25, 2014
Acute Myocardial Infarction Following Blunt Chest Trauma and Coronary Artery Dissection
Safar Ali Abdolrahimi1, Hamid Reza Sanati2, Mohammad Mostafa Ansari-Ramandi3
1Assistant Professor, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences , Tehran, Iran .
Insights
Blunt chest trauma can cause acute myocardial infarction through coronary artery dissection, often missed due to masked symptoms. Early suspicion and ECG are crucial for diagnosing this underrecognized condition.
Area of Science:
- Cardiology
- Trauma Surgery
- Emergency Medicine
Background:
- Blunt chest trauma is an infrequent cause of Acute Myocardial Infarction (AMI).
- Coronary artery injuries can result from mechanisms like vascular spasm, dissection, intimal tears, or thrombus rupture.
- Chest pain in trauma patients may be obscured by other injuries, leading to underdiagnosis.
Observation:
- A 37-year-old male presented with chest discomfort post-blunt chest trauma, initially diagnosed as chest wall pain.
- Three days later, he experienced severe chest pain, leading to admission for acute coronary syndrome.
- Coronary angiography revealed Left Anterior Descending (LAD) artery dissection.
Findings:
- Blunt chest trauma can lead to coronary artery dissection, a cause of AMI.
- Diagnosis is challenging due to symptom masking by other injuries or chest wall contusions.
- Clinical suspicion and systematic evaluation, including ECG, are vital for diagnosis.
Implications:
- The possibility of coronary artery injury must be considered in patients with blunt chest trauma.
- Underdiagnosis is common; early recognition is critical for appropriate management.
- Electrocardiography (ECG) is essential for all thoracic trauma patients due to potentially misleading clinical signs.
Abstract:
Blunt chest traumatic coronary artery dissection is an uncommon cause of atherosclerotic and non-atherosclerotic Acute Myocardial Infarction (AMI). Injuries of the coronary artery after blunt chest trauma are caused by different mechanisms such as vascular spasm, dissection and intimal tear or rupture of an existing thrombus formation. Chest pain might be masked by other injuries in patients with multiple traumas in car accident. Present case report is on a 37-year-old male without any specific past medical history who reported to the emergency department of a hospital with chest discomfort and was discharged with the impression of chest wall pain. After three days he experienced severe chest pain and he was admitted with the impression of acute coronary syndrome and underwent coronary angiography which showed Left Anterior Descending (LAD) artery dissection. The possibility of injury of the coronary artery should be kept in mind after blunt trauma to the chest. This condition is sometimes underdiagnosed. Its diagnosis may be difficult because chest pain can be interpreted as being secondary to chest wall contusion or it may be overshadowed by other injuries. Coronary dissection diagnosis after chest trauma requires clinical suspicion and systematic evaluation. Electrocardiography (ECG) should be done for every patient with thoracic trauma as the clinical findings may be misleading.
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