title: Myocardial hypoperfusion detected by cardiac computed tomography in an adult patient with heart failure after classic repair for corrected transposition of the great arteries.
abstract: A 69-year-old male with a history of classic repair for corrected transposition of the great arteries (TGA) arrived at our hospital with dyspnoea upon exertion. Echocardiography revealed severe dilation and diffuse hypokinesis of the systemic ventricle without obvious valvular dysfunction. Cardiac computed tomography (CT) revealed no significant stenosis. However, the morphological right coronary artery (CA) on the left side was unequally distributed to the large systemic ventricle and was mostly obscured, especially on the anterior wall. A low attenuation area in the anterior wall of the systemic ventricle and prominent trabeculations suggested ischaemia or infarction. We considered that chronic myocardial hypoperfusion due to an inadequate coronary arterial supply was one cause of the exacerbated heart failure long after the classic repair. Cardiac CT is useful for evaluating the distribution of the CA and to predict blood supply to the myocardium in corrected TGA.
authors: First Department of Internal Medicine, Nara Medical University, Nara, Japan. satosi01@naramed-u.ac.jp
authors: Satoshi
authors: S
authors: Okayama
authors: Ayako
authors: A
authors: Seno
authors: Tsunenari
authors: T
authors: Soeda
authors: Yasuhiro
authors: Y
authors: Takami
authors: Manabu
authors: M
authors: Horii
authors: Shiro
authors: S
authors: Uemura
authors: Yoshihiko
authors: Y
authors: Saito
mesh_terms: D000368:Aged; D003326:Coronary Circulation; D003331:Coronary Vessels / Q000473:pathology*; D004108:Dilatation, Pathologic; D006333:Heart Failure / Q000209:etiology / Q000503:physiopathology*; D006352:Heart Ventricles / Q000473:pathology; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000503:physiopathology; D011184:Postoperative Period; D013997:Time Factors; D014057:Tomography, X-Ray Computed / Q000379:methods; D014188:Transposition of Great Vessels / Q000601:surgery*