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Updated: Jun 13, 2026

Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography
Published on: October 28, 2020
Isolated accessory tricuspid valve causing right ventricular outflow tract obstruction.
Cheul Lee1, Chang-Ha Lee, Jae Gun Kwak
1Department of Thoracic and Cardiovascular Surgery, Cardiovascular Center, Sejong General Hospital, Bucheon, Republic of Korea. tscheul@hanmail.net
Accessory tricuspid valve tissue, a rare congenital heart defect, can cause severe right ventricular outflow tract obstruction. Surgical removal of this isolated tissue fully resolved the obstruction without harming valve function.
Area of Science:
- Cardiology
- Congenital Heart Defects
- Cardiac Surgery
Background:
- Accessory tricuspid valve (TV) tissue is a rare congenital cardiac anomaly.
- It presents with diverse clinical and hemodynamic manifestations.
Observation:
- A case of accessory TV tissue causing severe right ventricular outflow tract obstruction (RVOT) in a patient without other cardiac anomalies is presented.
- This isolated accessory TV tissue led to significant RVOT.
Findings:
- Surgical resection of the accessory TV tissue was performed.
- The procedure resulted in complete relief of the RVOT obstruction.
Implications:
- This case highlights the potential for isolated accessory TV tissue to cause severe RVOT.
- Surgical intervention can effectively treat this condition without compromising TV function.
- Demonstrates a successful surgical approach for isolated accessory TV tissue causing RVOT.
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