Related Experiment Video
Updated: Jun 12, 2026

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China
Published on: February 11, 2022
Massive right atrial myxoma presenting as syncope and exertional dyspnea: case report
Olga Azevedo1, Jorge Almeida, Tânia Nolasco
1Cardiology Department, Centro Hospitalar do Alto Ave - Unidade de Guimarães, Guimarães, Portugal. olgazevedo@yahoo.com.br
Abstract:
Primary heart neoplasms are rare occurring with an estimated incidence of 0.0017-0.19%. Myxoma is the most prevalent primary heart tumor. The right atrium is an unusual localization, occurring only in 15-20% of myxoma cases. We report a rare case of a massive right atrial myxoma causing tricuspid valve obstruction and presenting as syncope and exertional dyspnea. This case illustrates the influence of myxoma's size, position and mobility as well as patient's body posture and respiration to the development of signs and symptoms. Three-dimensional echocardiography proved useful in surgery planning, allowing a better definition of the tumor outline and attachment.
More Related Videos
Related Concept Videos
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Mitral Stenosis II: Clinical features and Diagnostic Tests
Mitral Regurgitation I: Introduction
Cardiomyopathy IV: Restrictive Cardiomyopathy
Cardiomyopathy I: Introduction and Classification
Mitral Valve Prolapse II: Assessment and Management

