Surgical treatment of a giant right atrial myxoma

Ryosuke Numaguchi,Keijiro Mitsube,Ryuji Koshima,Makoto Hashimoto

doi:10.1186/s40792-020-00923-9

Abstract

BackgroundRight atrial myxoma is a rare anomaly. When present, it can rarely cause blood flow obstruction in the right cardiac chamber depending on its size and location. We herein report a rare case of a giant right atrial myxoma, which caused right heart failure due to tricuspid valve obstruction, along with our treatment experience.Case presentationA 59-year-old woman was admitted to our hospital for palpitations and edema of the lower extremity. Computed tomography image and transthoracic echocardiography showed a 57 mm × 63 mm giant tumor obstructing the tricuspid valve inflow. The tumor was excised surgically and the residual septal defect was repaired with a Dacron patch. Tricuspid valve annuloplasty was performed additionally. The postoperative course was uneventful and the patient was discharged on postoperative day 5.ConclusionGiant right atrial myxoma is a rare cause of tricuspid valve stenosis and right heart failure. Surgical resection is the most appropriate treatment option and should be performed as soon as possible after diagnosis.

Highlights

Right atrial myxoma is a rare anomaly
Giant right atrial myxoma is a rare cause of tricuspid valve stenosis and right heart failure
Most myxomas are pathologically benign tumors, they can cause embolic symptoms, obstructive symptoms, and even sudden cardiac death depending on the location and size of the mass

Summary

Introduction

Right atrial myxoma is a rare anomaly. When present, it can rarely cause blood flow obstruction in the right cardiac chamber depending on its size and location. Conclusion: Giant right atrial myxoma is a rare cause of tricuspid valve stenosis and right heart failure. Background Cardiac myxoma is the most common type of primary heart tumor. Most myxomas are pathologically benign tumors, they can cause embolic symptoms, obstructive symptoms, and even sudden cardiac death depending on the location and size of the mass.

Results

Conclusion