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Case Reports
. 2024 Oct 28;2024(10):rjae677.
doi: 10.1093/jscr/rjae677. eCollection 2024 Oct.

Successful surgical treatment of a right atrial myxoma with hypothermic circulatory arrest and venous cannulation in pulmonary artery

Takao Miki  1 , Satoshi Ohki  1 , Ryo Yamaguchi  1 , Ayako Nagasawa  1 , Shuichi Okonogi  1 , Kiyomitsu Yasuhara  1 , Tamiyuki Obayashi  1
Affiliations
Case Reports

Successful surgical treatment of a right atrial myxoma with hypothermic circulatory arrest and venous cannulation in pulmonary artery

Takao Miki et al. J Surg Case Rep. .

Abstract

Myxomas are the most common type of benign cardiac tumors, and the right atrium is the second most common location among them, with an incidence ranging from 8.6% to 20% of all cardiac myxomas. Herein, we described a rare case of right atrial myxoma originating from the inferior vena cava orifice. In this case, main pulmonary artery cannulation and moderate hypothermic circulatory arrest were helpful to obtain a clear and simple view of the operative field without blood, which led to complete resection of the tumor with safety and better outcomes with no future recurrence.

Keywords: hypothermic circulatory arrest; inferior vena cava orifice; right atrial myxoma; venous cannulation in pulmonary artery.

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Conflict of interest statement

All authors declare that they have no potential conflicting interests with respect to the research, authorship, or publication of this article.

Figures

Figure 1
Figure 1
(a) Transesophageal echocardiography demonstrated that the mass was 42 × 28 mm in size, located in the inferior cavity of the right atrium, and was multi-lobulated, pedunculated, and highly mobile. (b) Coronary CT revealed a stalk on the endocardium of the IVC orifice (white arrow).
Figure 2
Figure 2
Intraoperative findings. (a) With two venous cannulas both in the superior vena cava and the main pulmonary artery, cardiopulmonary bypass was started. Through a lateral right atriotomy, a lobulated, gelatinous, and smooth surfaced tumor, 43 × 38 mm in diameter, was found. (b) The deficit of the endocardium (black dot circle) was closed with autologous pericardium.
Figure 3
Figure 3
The tumor was completely resected including the endocardium attached to its base.
See this image and copyright information in PMC

References

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