Truncus arteriosus

Fig. 9. Fleart evaluation, (a) Normal heart viewed from the anatomical right side of the embryo. The outflow tract forms a C" or a U shape (dotted line). TA— truncus arteriosus CC—conus cordis BC—bulbus cordis, (b) Normal heart viewed from anatomical leftside of the embryo. V—ventricle A—atrium. The two chambers form a peanut shape (dotted line) with the ventricle appearing slightly larger than atrium.

Electrolyte balance Hyperkalemia (6.0 mmol/1) has been reported in an 18-month-old child who had received long-term captopril after an elective operation on a type 1 truncus arteriosus defect [44 ]. The child also had anemia, presumed to be due to erythroid hypoplasia. 

Ahnaraz L, Gonzalez C, Obeso A. Effects of high potassium on the release of [3H]dopamine from the cat carotid body in vitro. J Physiol 1986 379 293-307. Berger PJ, Gibbins IL, Hards DK, Crosby LJ. The distribution and ultrastructure of sensory elements in the baroreceptor region of the truncus arteriosus of the lizard Trachydosaurus rugosus. Cell Tissue Res 1982 226 389-406. 

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