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Shi-Joon Yoo

Publications and source records attributed to Shi-Joon Yoo.

42 records · Page 3Linked to original sources
PubMed2002

Three-dimensional computed tomography in children with compression of the central airways complicating congenital heart disease.

PURPOSE: We investigated the quality and usefulness of spiral computed tomography and three-dimensional reconstruction in children with obstruction of the central airways as a complication of congenital heart disease. MATERIALS AND METHODS: Spiral computed tomography with three-dimensional reconstruction was performed in 49 children with obstruction of the central airways seen as a complication of congenital heart disease. Spiral scanning was performed during breathing in 40, and after sedation with chloral hydrate in 38. Contrast medium was administered through a pedal venous route in 42. We analyzed the motion artifact, additional information provided by, and clinical usefulness, of the three-dimensional images. We also investigated the factors influencing the quality of the images. RESULTS: Stenoses were seen in the trachea in 21 patients, and in bronchuses in 28. Their causes were an anomaly of the aortic arch in 6, posterior displacement of the aortic arch in 7, posterior displacement of the ascending aorta in 5, compression of the brachiocephalic artery in 5, absent pulmonary valve syndrome in 6, displaced or dilated cardiovascular structure in 17, and pulmonary arterial sling in 2. Motion artifact caused mild or negligible degradation of images in all patients except 6. Breath-holding in non-sedated children produced more severe motion artifact than did cardiovascular pulsation. Three-dimensional images provided additional information over two-dimensional images in 11, and provided clinically useful information in 10. Contrast injection via the pedal route was better for the quality of three-dimensional images than brachiocephalic injection (p = 0.013). CONCLUSIONS: Three-dimensional computed tomography is useful in evaluation of obstruction of the central airways in children with congenital heart disease. Despite the fact that motion artifact is unavoidable, the quality of three-dimensional images is acceptable for making a proper and accurate diagnosis. A pedal route is recommended for injection of contrast medium.

Adolescent↗
PubMed2002

Prenatal diagnosis of anomalous origin of the right pulmonary artery from the ascending aorta.

We report a case of anomalous origin of the right pulmonary artery from the ascending aorta that was diagnosed by fetal ultrasound at 21 weeks of gestation. The clue to the diagnosis was present in the three-vessel view, this being one of the views that we use for fetal cardiac screening. The anomaly was corrected surgically at 11 days of age. We discuss the importance of prenatal diagnosis in the management of this rare anomaly.

Abnormalities, Multiple↗
PubMed2002

Physiological impact and transcatheter treatment of the persisting left superior caval vein.

A left superior caval vein frequently occurs in the malformed, as well as in the structurally normal, heart. Its physiological impact varies, and is determined by its connections and whether there are associated cardiac lesions. In this review, we describe 3 patients with such a vein, 1 without other lesions and 2 with the anomalous venous channel as a component of a complex cardiac malformation. In all cases, transcatheter techniques were used to treat the physiological dysfunction caused by the presence of the vein. The connections of the vein, and the complexity of the associated cardiac lesions, determine the options for treatment. We define the role of surgical as opposed to transcatheter intervention, and discuss strategies for transcatheter treatment.

Cardiac Catheterization↗
PubMed2000

Double-outlet right ventricle: Pathology and angiocardiography.

Double-outlet right ventricle is but one form of abnormal ventriculoarterial connection. The definition that more than half of each great artery originates above the morphologically right ventricle is arbitrary. As pointed out by Lecompte, those features that should be defined in hearts with the ventriculoarterial connection of double-outlet right ventricle (and indeed other forms of abnormal ventriculoarterial connection) include the nature of the infundibular septum, ventriculoinfundibular fold, trabeculoseptomargin-alis, attachments of infundibular septum to anterior or posterior limb of trabeculoseptomargin-alis, the size and position of the ventricular septal defect, the spatial relation of great artery(s) to the ventricular septal defect, the spatial relationship between the great, and the distance between the tricuspid and pulmonary valves and the semilunar valves. Copyright 2000 by W.B. Saunders Company

Journal Article↗
PubMedDate not supplied

Congenitally corrected transposition of the great arteries with Ebstein malformation and hypoplasia of the aortic arch in a fetus.

Congenitally corrected transposition of the great arteries is not uncommonly associated with Ebstein's malformation of its left-sided tricuspid valve. The recognition of this rare association in the fetus is important because its postnatal prognosis is guarded. The present case report illustrates fetal echocardiographic clues to the diagnosis that include mesocardia and apically displaced attachment of the left-sided atrioventricular valve to the ventricular septum at four-chamber view.

Aorta, Thoracic↗