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Radionuclide angiography in congenitally corrected transposition of the great vessels in an adult.

The case of a 34-yr-old man with congenitally corrected transposition of the great vessels is described. Both first-pass and equilibrium radionuclide angiographic data were acquired and demonstrate the value of both studies in delineating the ventricular inversion and the transposed great vessels that are characteristic of this disorder. In addition to the anatomic information, the ejection fractions of the venous and systemic ventricles at rest and during exercise, the lack of any left to right shunt, and the presence of systemic A-V valve insufficiency can all be obtained from the scintigraphic data.

Adult↗

[Transposition of the great vessels, results of 2 surgical technics].

Venous switch operations for simple transposition of the great arteries are being carried out in increasingly younger patients. To guarantee sufficient growth of the reconstructed atria into adulthood it is advantageous to use as little prosthetic material as possible. We therefore compared the results in 36 patients who underwent the Mustard operation in which a large amount of foreign material is used with the results in 36 patients who underwent the Senning operation in which a small amount, if any, foreign material is used. The Senning operation resulted in a lower hospital mortality and a lower incidence of dysrhythmias.

Blood Vessel Prosthesis↗

[The creation of a "new" aorta and the characteristics of coronary artery transplantation in the anatomical correction of transposition of the great vessels of the heart].

Opinion varies among surgeons regarding the preferable method of surgical correction in patients with transposition of the great vessels (TGV) presenting with abnormal origins of the coronary artery (CA) and inadequacies in the diameters of the great vessels. In the work presented, the experience is analyzed gained with the performing of TGV radical correction operations of the arterial switch type in patients presenting with anomalous CA origins and abnormalities in diameters of the great vessels (n = 5). The submitted option permits simplifying CA transfer avoiding the coronary blood flow-related fatal intraoperative complications. Our modification of creation of a "new" aorta combined with particular features of implantation of the coronary arteries enabled us to secure good results in the presence of malformed, TGV, anatomy, which fact allowed the arterial switch operations to be extended to a greater number of cases in disadvantageous anatomical variants of TGV.

Aorta↗

A new approach to total repair of transposition of the great vessels: a technique for atrial autotransplantation.

We have devised a new operative procedure called atrial autotransplantation for transposition of the great vessels and applied it in 7 cases. Results were satisfactory except for one death. The bais of this technique was the experiment, using 70 dogs, in which the relationship of separation of the atrial wall and atrial septum to the development of arrhythmia was studied. It was found that reservation of the upper one sixth of the right atrial wall and the upper one third of the left atrial wall developed almost no significant arrhythmia with slow rate. By this concept and method, the left and right atria are almost completely separated, and a complete intraventricular and intra-atrial repair is made in a satisfactory operative field. Since there is no surgical intervention in the ventricular wall, postoperative cardiac function can be satisfactorily maintained. With this procedure intr-atrial conversion was performed in four cases and intraventricular conversion in three cases-the former for type I of uncomplicated transposition and type III of combined pulmonary stenosis, with or without VSD, and the latter for type II of combined large VSD. Only one patient with intraventricular conversion died of low cardiac output syndrome, probably due to incomplete relief of combined pulmonary stenosis.

Animals↗

[Double-balloon angioplasty of pulmonary venous drainage obstruction after the Senning procedure in transposition of the great vessels].

A six and half-year old boy with Senning operation for transposition of the great arteries, showed recurrent atrial flutter and obstruction of the pulmonary venous atrium from the early postoperative period. By Doppler examination a peak gradient of 13 mmHg at the isthmus level was recorded in the pulmonary venous atrium. A successful double-balloon dilatation of stenotic area was performed via a retrograde, transaortic, approach through angioplasty. Six months after the procedure the enlargement of the stenosis persists, and the patient is clinically asymptomatic and arrhythmia-free without medication.

Cardiac Surgical Procedures↗

d-Transposition of the great vessels in the neonate. A clinical diagnosis.

We reviewed the records of 66 neonatal patients with d-transposition of the great vessels (d-TGV) admitted to our institution. The initial history, physical examination by the cardiologist, chest rotengenogram, ECG, hemoglobin level, and hematocrit value were analyzed. Although all patients all patients were cyanotic and 65% were tachypneic, other signs of a major congenital cardiac anomaly were usually absent. The number of clinical signs (poor general status, cyanosis, respiratory distress, S2 increased and single, murmur, classical chest roentgenogram, abnormal ECG) present in each patient was three or less in 41%, only 13.5% had more than five signs.

Aorta↗

Chest pain and bilateral atrioventricular valve prolapse with normal coronary arteries in isolated corrected transposition of the great vessels. Clinical, angiographic and metabolic features.

A man evaluated for disabling chest pain was found to have isolated anatomically corrected transposition of the great vessels. Angiography demonstrated right and left atrioventricular (A-V) valve prolapse and normal coronary arteries. Atrial pacing produced chest pain, ischemic electrocardiographic changes, abnormal myocardial lactate metabolism and marked elevation of the left ventricular end-diastolic pressure; all of these changes returned to normal on termination of pacing. The association of corrected transposition and bilateral A-V valve prolapse and the possible causes of myocardial ischemia in this patient are discussed.

Fatty Acids, Nonesterified↗

Prenatal exposure to oral contraceptives and transposition of the great vessels in man.

The hypothesis that female sex hormones in the first trimester of pregnancy are causally related to transposition of the great vessels (TGV) was tested by a retrospective study of 135 cases of TGV ascertained through the British Columbia Health Surveillance Registry. During 1962-1972 there was no increase in the annual incidence rates of TGV. Analysis of questionnaires completed on 58 cases revealed no definite association between inadvertent use of oral contraceptives or other sex hormones during early pregnancy and TGV.

Abnormalities, Drug-Induced↗

Möbius syndrome and transposition of the great vessels.

A case of Möbius syndrome was associated with transposition of the aorta and pulmonary artery, as well as acheiria. This combination of anomalies supports the hypothesis that Möbius syndrome is caused by an intrapartum insult during the fourth to seventh week of gestation and is consistent with the vascular theory of embryopathogenesis.

Abducens Nerve↗

[Morphologic report and clinical evaluation of findings in a case of complete transposition of the great vessels of the heart and tubular hypoplasia of part of the aortic arch].

We present a case of the coexistence transposition of the great vessels, atrial and ventricular septal defects, and extreme tubular hypoplasia of the aortic arch between the left common carotid and left subclavian arteries. Beside the thorough morphological description of that uncommon combined heart malformation, evaluation of clinical analysis is performed and compared with theoretically reconstructed chemodynamismus during patient's life.

Aorta, Thoracic↗