title: Effects of balloon valvuloplasty on left anterior descending coronary artery blood flow in a neonate with critical aortic stenosis with transthoracic doppler echocardiography.
abstract: Doppler echocardiography has recently been used in the assessment of coronary flow dynamics. We described the application of transthoracic Doppler echocardiography for the measurement of the coronary flow before and after balloon valvuloplasty in a neonate with critical aortic stenosis. In this case, coronary flow volume/left ventricular mass ratio increased after the procedure, suggesting the improvement of myocardial blood perfusion. Thus, this technique may provide additional information about coronary flow dynamics in patients with critical aortic stenosis.
authors.affiliation: Department of Pediatrics, Akita University School of Medicine, Japan. kharada@doc.med.akita-u.ac.jp
authors.forename: Kenji
authors.initials: K
authors.lastname: Harada
authors.forename: Manatomo
authors.initials: M
authors.lastname: Toyono
authors.forename: Masamichi
authors.initials: M
authors.lastname: Tamura
mesh_terms: D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000628:therapy*; D001158:Arteries / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery*; D001783:Blood Flow Velocity / Q000502:physiology; D002404:Catheterization; D003326:Coronary Circulation / Q000502:physiology*; D003331:Coronary Vessels / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery*; D003422:Critical Care; D015150:Echocardiography, Doppler; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D013318:Stroke Volume / Q000502:physiology; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy