title: Doppler echocardiographic and morphologic evaluation of patients following operative repair of aortic coarctation.
abstract: Sixty-six patients operated on previously for coarctation of the aorta were included in the study. There were 50 children and 16 adults. Invasive and non-invasive gradients were recorded. Anatomical obstruction was evaluated by angiography in 54 patients and the numbers and size of collaterals were quantified. The closest correlation was found between Doppler-estimated gradients and invasive peak-instantaneous gradients (r = 0.87). The relation between anatomical obstruction and invasive peak-to-peak gradients, Doppler gradients and diastolic flow ere discouraging (r = 0.64, 0.54 and 0.35). Liberal indications for angiography or magnetic resonance tomography are recommended.
authors.affiliation: Department of Paediatrics, Umeå University Hospital, Sweden.
authors.forename: H
authors.initials: H
authors.lastname: Wendel
authors.forename: D
authors.initials: D
authors.lastname: Teien
authors.forename: D G
authors.initials: DG
authors.lastname: Human
authors.forename: M A
authors.initials: MA
authors.lastname: Nanton
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001012:Aorta, Abdominal / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D001013:Aorta, Thoracic / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D001017:Aortic Coarctation / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D001783:Blood Flow Velocity / Q000502:physiology; D001794:Blood Pressure / Q000502:physiology; D002648:Child; D002675:Child, Preschool; D015150:Echocardiography, Doppler; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008875:Middle Aged; D012008:Recurrence; D013997:Time Factors