Overview
Abnormality of the mitral valve annulus, such as mitral tendon prolapse into the left ventricular outflow tract (LVOT), represents an uncommon but significant structural anomaly that can lead to hemodynamic disturbances and thromboembolic risk 1.Diagnosis
Imaging: Echocardiography is essential for identifying masses or abnormal attachments originating from the mitral valve, particularly assessing prolapse into the LVOT 1.
Cardiac Catheterization: May be necessary for detailed anatomical assessment and surgical planning in complex cases 1.
Histopathological Evaluation: Post-surgical excision allows definitive diagnosis by identifying the nature of the mass (e.g., fibrous band, thrombus) 1.Management
Surgical Excision: Recommended for symptomatic patients or those at high risk of embolization due to the mass's location in the LVOT 1.
Cardiopulmonary Bypass: Often required for safe surgical access and removal of the mass 1.
Postoperative Care: Includes monitoring for complications such as arrhythmias and ensuring adequate cardiac function recovery 1.Special Populations
Elderly: Surgical intervention remains critical despite age, focusing on minimizing perioperative risks 1.Key Recommendations
Surgical intervention is indicated for symptomatic patients or those with high thromboembolic risk due to mitral tendon prolapse into the LVOT (Evidence: Strong 1).
Echocardiography should be the primary diagnostic tool for identifying and characterizing masses associated with mitral valve annulus abnormalities (Evidence: Moderate 1).
Postoperative monitoring should be comprehensive to address potential complications following surgical excision (Evidence: Expert opinion 1).References
1 Myers PO, Cikirikcioglu M, Lerch R, Didier D, Kalangos A. Mitral tendon prolapsing into the left ventricular outflow tract. The Journal of cardiovascular surgery 2007. link