Pediatrics : the hygienic and medical treatment of children . in of the aorta is in frontto the right, that of the pulmonary artery being behind to the one form, in spite of the change of position, each vessel opens fromits proper ventricle. In the second form the aorta opens from theright ventricle, the pulmonary artery from the left. In the majorityof cases transposition of the great vessels is associated with someform of stenosis of the pulmonary artery, and usually there is alsoa defect in the interventricular septum. ETIOLOGY.—The most plausible explanation of the lesion isthat of
Pediatrics : the hygienic and medical treatment of children . in of the aorta is in frontto the right, that of the pulmonary artery being behind to the one form, in spite of the change of position, each vessel opens fromits proper ventricle. In the second form the aorta opens from theright ventricle, the pulmonary artery from the left. In the majorityof cases transposition of the great vessels is associated with someform of stenosis of the pulmonary artery, and usually there is alsoa defect in the interventricular septum. ETIOLOGY.—The most plausible explanation of the lesion isthat of Rokitansky. In the conus arteriosus which forms the upperpart of the primitive aorta, the formation of the transverse aorticseptum places the lumen of the aorta in front. The torsion whichbrings the opening of the aorta behind is due to a kinking in thebulbus cordis, which forms the lower part of the primitive aorta andpulmonary artery. This torsion is represented by the spiral arrange-ment of the septum in the bulbus cordis. If this normal kinking and /.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpediatr, bookyear1917
