Articles: pulmonary-veins.
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Tohoku J. Exp. Med. · Dec 1980
Improved pulmonary venous anastomosis using a single left atrial cuff in one-stage bilateral lung autotransplantation.
A technical modification in pulmonary venous anastomosis is presented for one-stage bilateral lung autotransplantation in dogs. This method nullified or minimized both narrowing and loss of vascular distensibility due to scar formation at anastomotic line which inevitably resulted in functional defects after the operation. In this new procedure, bilateral pulmonary arteries were anastomosed using angioplastic techniques and both right and left pulmonary veins were sutured orthotopically as a single atrial cuff. ⋯ Various hemodynamic values were measured simultaneously. In the dog with bilateral lung transplants pulmonary arterial pressure showed linear increase with an increase in cardiac output when compared with control animal studies. It could be interpreted from these results that some changes occurred in the mechanism of pulmonary circulation of the transplant.
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Anomalous drainage of the persistent left superior vena cava into the left atrium with partial anomalous pulmonary venous return and the atrial septal defect is relatively rare condition, and there reported various kinds of surgical procedures in correction for this lesion. This report describes the original and simple surgical procedure in total correction of these lesions performed in our institute, using a large Dacron patch connected with a knitted Dacron vascular graft in its center. Surgical correction was accomplished by anastomosis of a Dacron draft with the orfice of the persistent left superior vena cava into the left atrium, widening of the atrial septal defect, and reconstruction of a new atrial septum with a Dacron patch. Postoperative cardiac evaluation revealed good condition of blood stream through a Dacron draft from the left superior vena cava to the right atrium, with corrected pulmonary venous drainage into the left atrium without pulmonary venous congestion and superior vena cava syndrome.