Unexpected Echocardiographic Findings: Accessory Mitral Valve Tissue in Adults
Background: Accessory mitral valve tissue (AMVT) is a rare congenital cardiac anomaly, which is associated with other congenital heart diseases. It is diagnosed in neonates or childhood and rarely in adulthood. Nevertheless, AMVT is an incidental finding or described as isolated. Echocardiography, especially three-dimensional(3D) echocardiography is considered as an optimal imaging technique for AMVT diagnosis.
Case presentation: We herein presented the two asymptomatic adult cases with AMVT, who presented with varying degrees of symptomatic left ventricular outflow tract (LVOT) obstruction. One presented with mild LVOT obstruction and no surgery was required, and another one with significant LVOT obstruction was recommended for surgical excision.
Conclusions: We emphasized the usefulness of echocardiography in the morphology detection of AMVT, and the importance of operation guidance and follow-up.
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Posted 09 Nov, 2020
On 09 Dec, 2020
Received 08 Dec, 2020
On 30 Nov, 2020
Received 25 Nov, 2020
On 13 Nov, 2020
Invitations sent on 08 Nov, 2020
On 05 Nov, 2020
On 05 Nov, 2020
On 03 Nov, 2020
On 01 Nov, 2020
Unexpected Echocardiographic Findings: Accessory Mitral Valve Tissue in Adults
Posted 09 Nov, 2020
On 09 Dec, 2020
Received 08 Dec, 2020
On 30 Nov, 2020
Received 25 Nov, 2020
On 13 Nov, 2020
Invitations sent on 08 Nov, 2020
On 05 Nov, 2020
On 05 Nov, 2020
On 03 Nov, 2020
On 01 Nov, 2020
Background: Accessory mitral valve tissue (AMVT) is a rare congenital cardiac anomaly, which is associated with other congenital heart diseases. It is diagnosed in neonates or childhood and rarely in adulthood. Nevertheless, AMVT is an incidental finding or described as isolated. Echocardiography, especially three-dimensional(3D) echocardiography is considered as an optimal imaging technique for AMVT diagnosis.
Case presentation: We herein presented the two asymptomatic adult cases with AMVT, who presented with varying degrees of symptomatic left ventricular outflow tract (LVOT) obstruction. One presented with mild LVOT obstruction and no surgery was required, and another one with significant LVOT obstruction was recommended for surgical excision.
Conclusions: We emphasized the usefulness of echocardiography in the morphology detection of AMVT, and the importance of operation guidance and follow-up.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Due to technical limitations, full-text HTML conversion of this manuscript could not be completed. However, the manuscript can be downloaded and accessed as a PDF.