The Transposition of the large Arterien (TGA) arises with approx. 4.8% of the innate heart errors both and exclusive false formation and in connection with a ventricle septum defect (VSD), an additional Pulmonalstenose (narrowing of the lung artery flap) and other complex false formations.
With the TGA are the main artery (Aorta) and the lung artery exchanges. They over-cross not as with a healthy heart, but ascend parallel. The Aorta is fed by the right Herzkammer, which lung artery of the left. Body and lung cycle are switched not one behind the other, but form two separate cycles. With the in the nut/mother body this becomes still balanced by natural cross connections: The Ductus arteriosus (PDA) connects Aorta and Lungenarterie, the Foramen oval (PFO) the two forecourts and by these two connections can arterial (oxygen-rich) blood into the body arrive and the venous (oxygen-poor) blood into the lung cycle. If the fetalen (vorgeburtlichen) cross connections lock after the birth, the child comes into a life-threatening condition because body and lung cycle is now actually separate and thus the oxygen supply of the body is prevented. The cross connections close after the birth slowly and the child become increasingly cyanotic.
As soon as PDA and PFO lock, one tries to keep the PDA open with the active substance Prostaglandin as life-saving measures. A further possibility consists of it extending the Foramen oval with the Rashkind maneuver (tear the forecourt septum with a balloon catheter). An artificial atrium septum defect (ASD) develops.
All operations are accomplished with the help of the heart lung machine. Lifelong control investigations are to be kept and also on the Endokarditisprophylaxe are to be respected.
The Taussig Bing complex is a very rare special form of the TGA (a partial TGA):
This disease picture is after the Erstbeschreibern Helen B. Taussig and Kardiologin, 1898 - 1986, Baltimore and Boston) and Richard B. sing (more amer. Surgeon, geb. 1909) designated.
As is the case for the simple TGA described in the first place is there also the corrected Transposition of the large Arterien. The Arterien runs, as described above, parallel, in addition, the right and left Herzkammer is exchanged. The left forecourt gives its blood, which it received over the exchanged lung artery, directly to the right Herzkammer off. From there it over the exchanged Aorta and the body cycle flow in right forecourt, which delivers it into the left Herzkammer. Heart and lung cycle are thus separate, but the left Herzkammer maintains the lung cycle and the right Herzkammer the body cycle. The children appear heart healthy. Additional heart false formations can make this disease picture however complicated.
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