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Left Coronary Artery Ligation: A Surgical Murine Model of Myocardial Infarction

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Post-myocardial Infarction Left Ventricular Aneurysm With Contained Rupture and Hemopericardium.

Moiz Saeed¹, Rand Sabanci¹, Adolfo Martinez¹

¹Internal Medicine, Michigan State University, East Lansing, USA.

|April 22, 2024

Summary

This case study highlights a rare instance of left ventricular aneurysm rupture leading to cardiac tamponade. Prompt diagnosis and imaging are crucial for managing this life-threatening complication of myocardial infarction.

Keywords:

acute pericardial effusion cardiac tamponade complication of myocardial infarction echocardiography hemopericardium lva myocardial infarction pericardial effusion ventricular aneurysm

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Area of Science:

Cardiology
Medical Imaging
Cardiovascular Surgery

Background:

Left ventricular aneurysms (LVAs) are rare complications of myocardial infarction (MI).
Mechanical complications of MI, such as LVAs, can lead to significant morbidity and mortality.
Contained aneurysm rupture with hemopericardium is an infrequent presentation of LVA.

Observation:

An 88-year-old male presented with symptoms suggestive of acute coronary syndrome.
Echocardiography revealed a left ventricular aneurysm with pericardial effusion and tamponade physiology.
CT angiography confirmed hemopericardium, indicating contained rupture.

Findings:

The patient experienced hemodynamic instability requiring intensive care and vasopressor support.
Echocardiography and CT angiography were crucial for diagnosing the LVA and associated complications.
LVAs can lead to serious complications including tamponade, arrhythmias, and thromboembolism.

Implications:

Early clinical suspicion and prompt diagnostic imaging are vital for identifying LVAs and their complications.
Further research is needed to establish optimal management strategies, including surgical versus percutaneous interventions.
This case underscores the importance of considering rare mechanical complications in patients with a history of MI.