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Background <p>There are few reports on totally endoscopic resection of right atrial (RA) myxoma, all of which were performed after aortic cross-clamping. Beating-heart RA myxoma resection through small trocars and port represents a novel, simple, and safe approach.</p> Case presentation <p>Three patients were diagnosed with RA myxomas arising from the interatrial septum, with sizes ranging from 20 to 64&#xa0;mm. In two cases, the masses were immobile or minimally mobile, while the remaining patient exhibited significant mobility of the mass through the tricuspid valve, resulting in moderate regurgitation. All patients successfully underwent totally endoscopic myxoma resection on beating heart.</p> Conclusions <p>Compared to procedures involving aortic cross-clamping, beating-heart surgery offers several advantages: (1) reduced operation times, lowered risk of aortic root complications, and shortened training duration for surgeons. Air embolism prevention techniques, including CO₂ insufflation, arterial pressure control, and keeping the left atrium full of blood, have been demonstrated to be safe through experimental models and large-scale clinical studies.</p>

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Totally endoscopic resection of right atrial myxoma on beating heart: a case serries

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月12日

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  • Huy Q. Dang,
  • Huong T. Le,
  • Quan T. Phan

摘要

Background

There are few reports on totally endoscopic resection of right atrial (RA) myxoma, all of which were performed after aortic cross-clamping. Beating-heart RA myxoma resection through small trocars and port represents a novel, simple, and safe approach.

Case presentation

Three patients were diagnosed with RA myxomas arising from the interatrial septum, with sizes ranging from 20 to 64 mm. In two cases, the masses were immobile or minimally mobile, while the remaining patient exhibited significant mobility of the mass through the tricuspid valve, resulting in moderate regurgitation. All patients successfully underwent totally endoscopic myxoma resection on beating heart.

Conclusions

Compared to procedures involving aortic cross-clamping, beating-heart surgery offers several advantages: (1) reduced operation times, lowered risk of aortic root complications, and shortened training duration for surgeons. Air embolism prevention techniques, including CO₂ insufflation, arterial pressure control, and keeping the left atrium full of blood, have been demonstrated to be safe through experimental models and large-scale clinical studies.