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Transesophageal echocardiography in right-sided endocarditis
J A San Román1, I Vilacosta, J L Zamorano
1Servicio de Cardiología, Hospital Universitario de San Carlos, Ciudad Universitaria, Madrid, Spain.
Journal of the American College of Cardiology
|April 1, 1993
Summary
Transesophageal echocardiography (TEE) does not improve vegetation detection for right-sided endocarditis in IV drug users compared to transthoracic echocardiography (TTE). TEE is not routinely indicated in these patients.
Area of Science:
- Cardiology
- Infectious Diseases
- Diagnostic Imaging
Background:
- Transesophageal echocardiography (TEE) excels in diagnosing left-sided endocarditis vegetations.
- The utility of TEE for right-sided endocarditis remains unestablished.
- Intravenous drug abuse is a significant risk factor for right-sided endocarditis.
Purpose of the Study:
- To evaluate the diagnostic value of TEE versus transthoracic echocardiography (TTE) for right-sided endocarditis.
- To compare the characterization of vegetations between TEE and TTE.
- To assess the role of TEE in intravenous drug abusers with suspected right-sided endocarditis.
Main Methods:
- Prospective study of 48 intravenous drug abusers with suspected right-sided endocarditis.
- Both transthoracic echocardiography (TTE) and transesophageal echocardiography (TEE) were performed.
- Comparison of vegetation detection and characterization rates between TEE and TTE.
Main Results:
- Vegetations detected in 22 of 48 patients by both TTE and TEE.
- TEE provided more precise characterization in 63% of patients with vegetations.
- No significant difference in detecting tricuspid regurgitation between TEE and TTE.
Conclusions:
- TEE does not enhance diagnostic accuracy for right-sided endocarditis vegetations over TTE in IV drug users.
- Routine TEE is likely not indicated for suspected right-sided endocarditis in this population.
- TTE remains a primary diagnostic tool for right-sided endocarditis.