Two-dimensional echocardiographic recognition of left ventricular pseudoaneurysm

Area of Science:

• Cardiology
• Medical Imaging
• Echocardiography

Background:

• Left ventricular pseudoaneurysms (PA) are rare but life-threatening cardiac conditions.
• Distinguishing PA from true aneurysms (TA) is critical for appropriate management.
• Accurate noninvasive diagnostic methods are essential for early detection.

Purpose of the Study:

• To evaluate the utility of two-dimensional echocardiography (2DE) in diagnosing left ventricular pseudoaneurysms (PA).
• To identify unique 2DE characteristics of PA.
• To differentiate PA from true aneurysms (TA) using 2DE.

Main Methods:

• Retrospective study of five consecutive patients with PA and 22 with TA.
• Utilized two-dimensional echocardiography (2DE) for imaging.
• Analyzed specific 2DE features and measured orifice-to-diameter ratios.

Main Results:

• 2DE successfully visualized PA in 4 out of 5 patients.
• Unique 2DE findings for PA included endocardial discontinuity, saccular contour, and narrow orifice.
• 2DE reliably differentiated PA from TA based on end-systolic orifice to diameter ratios (0.37 vs 1.00, p < 0.001).
• Thrombotic material was detected in 3 of 4 PAs.

Conclusions:

• Two-dimensional echocardiography (2DE) is a valuable noninvasive tool for detecting left ventricular pseudoaneurysms (PA).
• 2DE can effectively distinguish PA from true aneurysms (TA).
• Early and accurate diagnosis of PA via 2DE is clinically important due to the high risk of rupture.