Left ventricular aneurysm classification
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Left ventricular aneurysm Microchapters |
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Differentiating Left ventricular aneurysm from other Diseases |
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Diagnosis |
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Treatment |
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Case Studies |
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Left ventricular aneurysm classification On the Web |
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American Roentgen Ray Society Images of Left ventricular aneurysm classification |
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Risk calculators and risk factors for Left ventricular aneurysm classification |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Classification
Left ventricular aneurysms are classified as true and false aneurysms. While both true aneurysms and false (pseudo) ventricular aneurysms are the sequelae of myocardial infarction, their etiology, pathologic findings, diagnostic findings, and treatment are different.
| True Aneurysm | |||||||||||||||||||||||||||||||||||||||||||||||||||
| LV Aneurysm | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Pseudo Aneurysm | |||||||||||||||||||||||||||||||||||||||||||||||||||
True Left Ventricular Aneurysm
A true left ventricular aneurysm has an aneurysmal sac which contains the endocardium, epicardium, and thinned fibrous tissue (scar) that is a remnant of the left ventricular muscle. A true left ventricular aneurysm, particularly if small, may cause few or any symptoms and is compatible with prolonged survival. Rupture of a true aneurysm is relatively uncommon. Surgical resection is therefore only necessary when refractory angina pectoris, congestive heart failure, systemic embolization, or refractory arrhythmias are present.
False Left Ventricular Aneurysm or Pseudoaneurysm
Unlike a true aneurysm, which contains some myocardial elements in its wall, the walls of a false aneurysm are composed of organized hematoma and pericardium and lack any element of the original myocardial wall. A false aneurysmal sac represents a pericardium that contains a ruptured left ventricle. In contrast to true aneurysms, false aneurysms have a greater tendency to rupture and require surgical repair.