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The ligamentum arteriosum plays a role in major trauma. It fixes the aorta in place during abrupt motions, consequently potentially resulting in a ruptured aorta. Such ruptures are very rare. If the ductus arteriosus fails to close after birth, a condition known as patent ductus arteriosus can develop. This is a fairly common birth defect.
The ductus arteriosus, also called the ductus Botalli, named after the Italian physiologist Leonardo Botallo, is a blood vessel in the developing fetus connecting the trunk of the pulmonary artery to the proximal descending aorta. It allows most of the blood from the right ventricle to bypass the fetus's fluid-filled non-functioning lungs.
The ligamentum is divided and two vascular clamps are placed on the junction of the left arch with the descending aorta. After division the two aortic ends are oversewn with 2 running layers of non-absorbable sutures. The end of the left arch is now further dissected from the mediastinal tissues for relief of any remaining constricting mechanism.
One option is to go through the patent ductus arteriosus and continue down the aorta instead, and the other option is to continue on down the way it’s going. Hrm. Well, since it’s higher pressure over here on the left side, you might think that the blood would say “thanks, but no thanks”, and keep going down the lower pressure pulmonary ...
The ductus arteriosus connects to the junction between the pulmonary artery and the descending aorta in foetal life. This artery later regresses as the ligamentum arteriosum. [1] [2] The descending aorta has important functions within the body. The descending aorta transports oxygenated blood from the heart to the rest of the body. [3]
The ductus arteriosus connects to the lower part of the arch in foetal life. This allows blood from the right ventricle to mostly bypass the pulmonary vessels as they develop. The final section of the aortic arch is known as the aortic isthmus.
The arteries of the sixth arch persist as the ductus arteriosus on the left, and are obliterated on the right. [10]: 318–323 After birth, the ductus arteriosus regresses to form the ligamentum arteriosum. During growth, these arteries descend into their ultimate positions in the chest, creating the elongated recurrent paths.
Coarctation of the aorta (CoA) [1] [2] is a congenital condition whereby the aorta is narrow, usually in the area where the ductus arteriosus (ligamentum arteriosum after regression) inserts. The word coarctation means "pressing or drawing together; narrowing". Coarctations are most common in the aortic arch. The arch may be small in babies ...