Key result
Biplane TEE identifies all paravalvar leaks, eliminating the ~20% miss rate of transverse imaging alone.
Why the study?
The advantages of biplane transoesophageal imaging over standard single transverse plane imaging or precordial approach in evaluating mitral valve prostheses with suspected dysfunction were unclear.
Does biplane transoesophageal echocardiography improve the detection of paravalvar leaks in patients with suspected mitral valve prosthesis dysfunction compared to single transverse plane imaging?
Observational (n=67)
No
Does biplane transoesophageal echocardiography improve the detection of paravalvar leaks in patients with suspected mitral valve prosthesis dysfunction compared to single transverse plane imaging?
Biplane transoesophageal echocardiography is superior to single transverse plane imaging for identifying anterior and posterior paravalvar leaks in mitral valve prostheses.
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Biplane TEE may improve paravalvar leak detection in mitral prostheses; leaves open whether routine adoption alters clinical outcomes.
Groundstroem et al. (1993) conducted an observational in Suspected dysfunction of a mitral valve prosthesis (n=67). Biplane transoesophageal echocardiography vs. Standard single transverse plane imaging or precordial approach was evaluated on Number, type, and site of leak according to the three means of scanning. Biplane transoesophageal echocardiography identified all paravalvar leaks by combining planes, whereas transverse imaging alone missed 6 of 30 anterior or posterior leaks.
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