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Left ventricular pseudoaneurysm with left atrium tamponade: a rare postinfarction complication
Summary
A ruptured left ventricular aneurysm caused cardiac tamponade and failure in a patient with prior bypass surgery. This rare complication highlights the importance of advanced imaging for diagnosing complex cardiac events post-myocardial infarction.
Area of Science:
- Cardiology
- Cardiac Surgery
- Diagnostic Imaging
Background:
- A 65-year-old male patient presented with deep-vein thrombophlebitis three weeks post-myocardial infarction.
- The patient developed severe cardiac failure symptoms shortly after hospital readmission.
Observation:
- Transthoracic echocardiography revealed an unusual echo-free space near the left atrium's lateral wall.
- Transesophageal echocardiography identified a ruptured left ventricular aneurysm and a pseudoaneurysm compressing the left atrium.
Findings:
- A tear in the left ventricular aneurysm wall was detected using color-flow Doppler, near the posterior atrioventricular sulcus.
- The pseudoaneurysm caused significant compression of the left atrial cavity, leading to cardiac tamponade.
Implications:
- Previous coronary artery bypass grafting (10 years prior) may have contributed to the pseudoaneurysm's unusual location due to pericardial adhesions.
- This case underscores the diagnostic utility of transesophageal echocardiography in identifying rare, life-threatening cardiac complications following myocardial infarction.