» Articles » PMID: 37900900

Systemic Right Ventricle Complications in Levo-transposition of the Great Arteries: A Case Report and Review of Literature

Overview
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Congenitally corrected levo-transposition of the great arteries (L-TGA) is a congenital heart disease in which the ventricles and great arteries are transposed from their typical anatomy. In L-TGA, the double discordance, atrioventricular and ventriculoarterial, create an acyanotic milieu which allows patients to survive their early decades, however, progressive systemic right ventricle (sRV) dysfunction creates complications later in life. sRV dysfunction and remodeling predisposes patients to intracardiac thrombus (ICT) formation.

Case Summary: A 40-year-old male with L-TGA presented with symptoms of acute decompensated heart failure. In childhood, he had surgical repair of a ventricular septal defect. In adulthood, he developed sRV dysfunction, systemic tricuspid valve (sTV) regurgitation, and left-bundle branch block for which he underwent cardiac resynchronization therapy. Transthoracic echocardiogram showed a sRV ejection fraction of 40%, severe sTV regurgitation, and a newly identified sRV ICT. ICT was confirmed by ultrasound-enhancing agents and transesophageal echocardiography. Our patient was optimized with guideline-directed medical therapy and diuresis. Anticoagulation was achieved with a vitamin K antagonist (VKA) and he was later referred for evaluation by advanced heart failure and heart transplant services.

Conclusion: Anticoagulation with VKA is the mainstay of treatment in the absence of conclusive data supporting direct oral anticoagulant use in ICT in patients with congenital heart disease. This case illustrates the natural history of L-TGA and highlights the importance of surveillance and monitoring with dedicated cardiac imaging to identify complications.

References
1.
Yang H, Bouma B, Dimopoulos K, Khairy P, Ladouceur M, Niwa K . Non-vitamin K antagonist oral anticoagulants (NOACs) for thromboembolic prevention, are they safe in congenital heart disease? Results of a worldwide study. Int J Cardiol. 2019; 299:123-130. DOI: 10.1016/j.ijcard.2019.06.014. View

2.
Spigel Z, Binsalamah Z, Caldarone C . Congenitally Corrected Transposition of the Great Arteries: Anatomic, Physiologic Repair, and Palliation. Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu. 2019; 22:32-42. DOI: 10.1053/j.pcsu.2019.02.008. View

3.
Yokota Y, Kawanishi H, Hayakawa M, KUMAKI T, Takarada A, Nakanishi O . Cardiac thrombus in dilated cardiomyopathy. Relationship between left ventricular pathophysiology and left ventricular thrombus. Jpn Heart J. 1989; 30(1):1-11. DOI: 10.1536/ihj.30.1. View

4.
Fleddermann A, Hayes C, Magalski A, Main M . Efficacy of Direct Acting Oral Anticoagulants in Treatment of Left Ventricular Thrombus. Am J Cardiol. 2019; 124(3):367-372. DOI: 10.1016/j.amjcard.2019.05.009. View

5.
Wallis G, Debich-Spicer D, Anderson R . Congenitally corrected transposition. Orphanet J Rare Dis. 2011; 6:22. PMC: 3116458. DOI: 10.1186/1750-1172-6-22. View