Echocardiographic findings in the liver in total anomalous pulmonary venous connection.
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Echocardiography↗
Biomedical subjects
S Del Torso
Publications and source records attributed to S Del Torso.
Non-invasive assessment of pulmonary blood supply after staged repair of pulmonary atresia.
Radionuclide studies were performed to determine pulmonary blood flow in six children who had undergone surgery for pulmonary atresia, ventricular septal defect, and hypoplastic pulmonary arteries with or without major aortopulmonary collateral arteries. Lung blood flow was assessed from both particle perfusion lung scans and the pulmonary and systemic phase of a radionuclide dynamic flow study. Five patients had perfusion defects identified on the particle perfusion lung scan. In three of these, abnormal areas were perfused only during the systemic phase of the flow study, a combination of findings that indicate the presence of perfusion by collateral arteries. In one patient no systemic perfusion was noted and in one an initial particle perfusion study indicated the presence of a lung segment perfused by a collateral artery. In this last patient the particle perfusion scan after total correction showed a reduction in the size of the lung perfusion defect and no evidence of lung perfusion during the systemic phase of the flow study. The particle perfusion lung scan in the sixth patient showed pronounced asymmetry in blood flow to the lungs with no segmental perfusion defect on the particle perfusion scan and no abnormalities on the systemic flow study. It is concluded that radionuclide lung perfusion and flow studies provide useful information on lung perfusion and merit further evaluation to define their role in the management of these patients.
Abnormalities, Multiple↗
Successful repair of symptomatic cor triatriatum dexter in infancy.
Cor triatriatum dexter is a rare cardiac malformation, usually diagnosed incidentally at operation or necropsy. We report the case of a 5-month-old infant, severely symptomatic, who underwent correction of a highly obstructive cor triatriatum dexter, with multiple anomalies of the systemic venous return and a large interatrial communication. This appears to be the first case of successful repair of this anomaly during infancy.
Angiocardiography↗
Right lung agenesis. A case report.
This report describes a combination of a ventricular septal defect and partial anomalous pulmonary venous drainage in an infant with right lung agenesis. Unilateral agenesis of the lung has been rarely described. Although this condition is compatible with long survival, morbidity and mortality are increased by the associations with other malformations both intra- and extracardiac. In unilateral lung agenesis although there is a compensatory increase in volume of the single lung, there is a reduction in the number of branches of the pulmonary artery and the whole right ventricular output passes through a reduced vascular bed. In isolated unilateral agenesis of the lung, pulmonary hypertension is present in about 19% of cases, while in patients with additional left to right shunt the incidence is 88%. The basic condition of increased pulmonary blood flow (single lung) and the undiagnosed partial anomalous pulmonary venous drainage may explain why the early closure of the ventricular septal defect did not prevent the progressive pulmonary vascular disease. We discuss shortly Tolazoline as pulmonary vasodilator.
Heart Septal Defects, Ventricular↗
Anatomy of aortic atresia. Cases presenting with a ventricular septal defect.
The anatomy of 58 specimens of aortic outflow tract atresia was studied. All cases had situs solitus and levocardia, 37 had atrioventricular (AV) concordance, two had common inlet to a right ventricle and 19 had mitral atresia. The great arteries were normally interrelated in all cases. Fifty-one cases had an intact ventricular septum, while seven presented with a ventricular septal defect (VSD). Of the seven with VSD, in two it was associated with a common AV orifice draining exclusively into the right ventricle in the presence of a rudimentary left ventricular chamber. In one case a small VSD accompanied combined mitral and aortic atresia. In the other four cases the left ventricles and mitral valves were fairly normal in size; the VSD was subpulmonary in three cases, due to infundibuloventricular malalignment, and perimembranous in one. These last four cases are of particular interest since they could be amenable to surgical correction. Possible approaches to surgical treatment and morphologic features pertinent to them are described and discussed.
Aortic Valve↗
[Digitalis toxicity and digoxin blood levels in children (author's transl)].
Digoxin serum levels in 41 children with clinical and/or ECG symptoms of digitoxicity were determined by radioimmunoassay and compared to the normal values. 54% of the cases showed a good relationship between clinical and/or ECG signs of toxicity and digoxin levels; on the contrary, 29% of patients exhibited only clinical and/or ECG signs of toxicity with normal digoxin levels and 17% of patients had high digoxin levels without signs of toxicity. The significance and possible causes of this relative discrepancy are discussed.
Adult↗
[Serum digoxin levels in the pediatric age (author's transl)].
Serum digoxin levels during maintenance therapy in children of four different age groups were determined by a radioimmunoassay technique. For each patient, three determinations, at the peak level, at the plateau and at the final phase, were done. The newborn group showed in all three phases serum digoxin levels significantly higher than those found in the other groups, in spite of an only slightly higher dosage of digoxin used in comparison to the other groups.
Age Factors↗