Stress-induced right ventricular ischemia in recurrent pulmonary outflow stenosis in repaired tetralogy of fallot.
Radionuclide uptake by the right ventricle during myocardial perfusion imaging is minimal compared with the left ventricular myocardium and is not given much importance. However, right ventricular hypertrophy from pressure or volume overload may increase right ventricular radiotracer uptake and demonstrate reversible stress-induced perfusion abnormalities in the presence of normal coronary arteries. We report a case of right ventricular ischemia secondary to right ventricular hypertrophy from recurrent right ventricular outflow tract stenosis in a patient with repaired tetralogy of Fallot. Advances in the management of congenital heart disease have led to more patients surviving to adulthood. These patients subsequently present to cardiologists in adulthood with sequelae or complications arising from previous surgery undertaken during childhood.
Gupta
Rajiv
R
Division of Cardiology, Department of Radiology, University of Texas Medical Branch, Galveston, Texas 77555, USA.
Rahman
Atiar M
AM
Vijayakumar
Vani
V
D000328:Adult; D013504:Cardiovascular Surgical Procedures / Q000009:adverse effects*; D005080:Exercise Test; D006801:Humans; D008297:Male; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging* / Q000209:etiology*; D011666:Pulmonary Valve Stenosis / Q000000981:diagnostic imaging* / Q000209:etiology*; D011877:Radionuclide Imaging; D012008:Recurrence; D013771:Tetralogy of Fallot / Q000150:complications* / Q000601:surgery; D016896:Treatment Outcome; D018497:Ventricular Dysfunction, Right / Q000000981:diagnostic imaging / Q000209:etiology; D014694:Ventricular Outflow Obstruction / Q000000981:diagnostic imaging* / Q000209:etiology*