Muñoz Castellanos L, Kuri Nivón M, Mallón J
Instituto Nacional de Cardiología Ignacio Chávez, México, D.F.
Arch Inst Cardiol Mex. 1994 Nov-Dec;64(6):517-21.
To demonstrate that the right ventricular infundibulum changes its spatial orientation in hearts with complete transposition of the great arteries, sixty five hearts with this malformation, with anterior and right sided aorta were studied morphometrically. The inlet apex and infundibular arises in the right ventricule were interrelated. The angles formed by the intersection of both arises were measured, and the results were compared with those obtained from a similar study in thirty five normal hearts. The angles obtained in the hearts with transposition of the great arteries were of 156.5 degrees, and those measured in the normal hearts were of 126.6 degrees. This difference was interpreted as an indicator of a vertical shift of the right ventricular infundibulum toward the right, to the same side in which the aorta is located and with which it is connected. In this way this outlet looses its leftward direction observed in normal hearts. It is concluded that although complete transpositions of the great arteries developmentally has its origin primarily in the truncus of the embryonic heart, the infundibulum is also involved modifying its position.
为了证明在大动脉完全转位的心脏中右心室漏斗部会改变其空间方向，对65例患有这种畸形且主动脉位于前方和右侧的心脏进行了形态学研究。右心室的入口尖和漏斗部起始部位相互关联。测量了两者起始部位相交形成的角度，并将结果与在35例正常心脏中进行的类似研究所得结果进行比较。大动脉转位心脏中测得的角度为156.5度，正常心脏中测得的角度为126.6度。这种差异被解释为右心室漏斗部向右侧垂直移位的指标，右侧与主动脉所在并与之相连的一侧相同。这样，这个出口失去了在正常心脏中观察到的向左方向。得出的结论是，尽管大动脉完全转位在发育上主要起源于胚胎心脏的动脉干，但漏斗部也参与了其位置的改变。
