Left ventricular aneurysm classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Seyedmahdi Pahlavani, M.D. [2]

Overview

The main classification method is based on the components of the wall of the aneurysm, and it classifies LV aneurysms into true and false (pseudo) aneurysms.

Classification

Components

Based on the nature of the wall of the aneurysm and its components, left ventricular aneurysms are classified as true or false aneurysms.[1]

 
 
 
 
 
 
 
 
 
 
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.

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.

Location

Left ventricular aneurysm may also be classified by location as anterolateral (apical) or posterior.[1]

References

  1. 1.0 1.1 Maron MS, Finley JJ, Bos JM, Hauser TH, Manning WJ, Haas TS, Lesser JR, Udelson JE, Ackerman MJ, Maron BJ (2008). "Prevalence, clinical significance, and natural history of left ventricular apical aneurysms in hypertrophic cardiomyopathy". Circulation. 118 (15): 1541–9. doi:10.1161/CIRCULATIONAHA.108.781401. PMID 18809796.


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