Univentricular Conversion for Acquired Severe Right Ventricular Failure.

Kugo, Yosuke; Taira, Masaki; Watanabe, Takuji; Tominaga, Yuji; Hasegawa, Moyu; Ueno, Takayoshi; Miyagawa, Shigeru · Ann Thorac Surg · 2023

case_report · Level V

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Abstract

In a 14-year-old boy, prolonged right ventricular (RV) dysfunction due to postmyocarditis cardiomyopathy developed, whereas left ventricular function recovered with conservative treatment. On catheterization, the RV end-diastolic volume index was 184 mL/m<sup>2</sup>, and mean pulmonary artery pressure was 16 mm Hg. Despite one-and-a-half ventricle repair, RV dilation continued to worsen; therefore, 3 years after the operation, RV exclusion and extracardiac total cavopulmonary connection were performed. Postoperatively, left ventricular function was maintained, and no further RV dilation was observed. Univentricular conversion may be an effective procedure for the treatment of acquired severe isolated right-sided heart failure.

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