LV outflow tract obstruction in complete transposition of great arteries.
Explore the source record for details and available documents.
Echocardiography↗
Biomedical subjects
J Balkin
Publications and source records attributed to J Balkin.
Familial membranous subaortic stenosis.
Familial occurrence of membranous subaortic stenosis (MSS) is described in three families. The defect was found in 2 siblings in two of these families, and in 3 siblings of the third family. The importance of early diagnosis and treatment of MSS is emphasized. We suggest early evaluation of first-degree relatives of patients with MSS for the possibility of this defect.
Adolescent↗
An unusual case of double-outlet left ventricle.
The first case of a double-outlet anterior left ventricle with normal relationships of the great vessels is reported (S.L.D.). This case is associated with a chromosomal trisomy--the exact nature of which is not yet clear. The clinical, electrocardiographic, echocardiographic and angiographic features are described.
Cardiac Catheterization↗
Complete atrioventricular canal with survival to the eighth decade.
Survival to the eighth decade of patients with atrioventricular canal is extremely rare. A patient is presented with such survival of the complete form of the defect. This possibly represents the first such report in the medical literature. The value of 2-dimensional echocardiography, particularly with venous contrast studies, in establishing the diagnosis, is shown.
Age Factors↗
Anomalous origin of the left coronary artery from the pulmonary artery: new electrocardiographic, echocardiographic and surgical observations.
The case of a two year old girl with anomalous origin of the left coronary artery from the pulmonary artery is described. She was never in heart failure but had cardiomegaly and anginal pain. The ECG showed a typical infarct pattern with left ventricular hypertrophy. An unusual finding was a prolonged QTc of 0.52. During cardiac catheterization and twice 24 hours later she developed ventricular fibrillation treated with electroshock and prevented later with propranolol. The QTc returned to normal after surgery. Echocardiography showed diastolic flutter and early systolic closure of the pulmonary valve. This disappeared after surgical correction. Transverse 2D echo of the aortic root showed a large right coronary artery which decreased in size after surgery. The left coronary artery was not seen on echocardiography. At cardiac catheterization the diagnosis of an anomalous origin of the left coronary artery from the pulmonary artery was established, with a large shunt to the pulmonary artery through the anomalous artery. Mild pulmonary hypertension and mild mitral regurgitation were present. At surgery, since direct implantation was technically impossible, the left coronary artery was successfully connected to the aorta via a 6 mm expanded Poly-Tetra-Fluoro-Ethylene (P.T.F.E.) graft.
Child, Preschool↗