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Pseudopericardial effusions in heart transplant recipients
R Dorffner1, V M Metz, K L Eibenberger
1Department of Radiology, University of Vienna, Austria.
Summary
In heart transplant recipients, band-shaped structures ventral to the heart are typically mediastinal fat, not pericardial effusion. This finding is crucial for accurate cardiac imaging interpretation.
Area of Science:
- Cardiology
- Medical Imaging
- Transplant Surgery
Background:
- Sonographic evaluation of heart transplant recipients can reveal unusual structures.
- Band-shaped, homogeneous, echo-free structures are sometimes observed ventral to the right ventricle.
Purpose of the Study:
- To identify the nature of specific sonographic findings in heart transplant patients.
- To differentiate these structures from potential pathological conditions like pericardial effusion.
Main Methods:
- Sonographic examination of 212 consecutive heart transplant recipients.
- Confirmation of findings using computed tomography (CT) or magnetic resonance imaging (MRI).
Main Results:
- Band-shaped structures were identified in 8.5% (18/212) of patients.
- CT or MRI confirmed these structures were mediastinal fat.
Conclusions:
- Sonographically detected band-shaped structures ventral to the heart in transplant recipients are usually mediastinal fat.
- These findings should not be mistaken for localized pericardial effusion.
- Accurate interpretation aids in appropriate patient management and avoids unnecessary interventions.