This study had the objective of describing a case of dextrocardia with situs solitus and apex-basis axis inversion in a lesser anteater (Tamandua tetradactyla). Arq Bras Cardiol. Dec;91(6):e Anatomy of a dextrocardia case with situs solitus. Faig-Leite FS(1), Faig-Leite H. Author information: (1)Universidade. Herz. May;35(3) doi: /s Epub May Isolated dextrocardia with situs solitus (dextroversion). Solzbach U(1).

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Variants on the normal picture are relatively uncommon.

Potential Conflict of Interest No potential conflict of interest relevant to this article was reported. What kidney problems can occur in babies? Among the several studies, the one by Van Praagh et al 6 is worth mentioning, as it describes and classifies in details the different types of dextrocardia.

Cold Spring Harbor Perspectives in Biology. The heart apex was positioned along the heart axis and was turned to the right side, thus demonstrating the dextrocardia. Cardiac malpositions; an overview based on study of sixty-five necropsy specimens. The atrioventricular concordance was anatomically normal. Dextrocardia in situs inversus totalis with obstructive coronary disease.

Anatomy of a dextrocardia case with situs solitus

Differing from the normal animals, the vessels on the base of the heart of the animal with dextrocardia situs solitus and apex-basis inversion axis presented alterations. Lima I ; E. This diversity seems to be caused by the difficulty to establish criteria for a perfect classification This article needs additional citations for verification. Study Association This study is not associated with any graduation program.

What is amniotic band syndrome? After this phase, the heart was then carefully removed from its place and again inspected with a magnifying aitus. Please help improve this article by adding citations to reliable sources. Situs solitus is the normal position of thoracic and abdominal organs.


The dextrocardia with situs solitus in itself is not a common pathology in animals. There is great discordance among authors regarding the classification of the several types of dextrocardia 1, The study by Van Praagh et al 6 is the only one that describes two cases that were identical to the case reported here, with more anatomic details. Anatomic types of congenital dextrocardia; diagnostic and embryologic implications.

Thorax human anatomy Abdomen. Such alterations had not been found in dexhrocardia animal because the heart presented an apex-based rotation axis.

This infirmity can occur separately situs solitus or in association with situs inversus complete inversion of all visceral organs presenting itself as an inverted image Da Silva et al.

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For instance, different levels of NODAL proteins on opposite sides of the embryo have been linked to proper bending of the embryonic heart, giving it its asymmetrical form. Doctors would notice this condition as soon as a baby is born because the infant’s skin color looks bluish.

Dextrocardia must be differentiated from the dextroversion, as the latter is not a congenital condition, in which the heart can change sides due to a disease that pushes or pulls the organ into the right antimere, although the heart apex remains toward the left side 2,5,7,9, A population-based study of cardiac malformations and outcomes associated with dextrocardia.

One slight difference is that right lung is smaller than the left lung, in order to accommodate the heart. This study had the objective of describing a case of dextrocardia with situs solitus and apex-basis axis inversion in a lesser anteater Tamandua tetradactyla between five evaluated animals, all from the area of Mine Bauxite – Paragominas – Para.

Situs solitus

In humans, dextrocardia cases with situs inversus totalisalso seen with situs inversus Perloff,in the heart and in other organs, are presented as a mirror image of the normal disposition. As always, you should dextdocardia with your healthcare provider about your specific health needs. Anatomicallythis means that the heart is on the left with the pulmonary atrium on the right and the systemic atrium on the left along with the cardiac apex. Both cases, as in the present one, constituted necropsies of children younger than one year with a type of dextrocardia classified by the authors as dextrocardia with normally related great vessels.


Dextrocardia with sinus solitus. Cwhen described together with the transposition of other organs in two animals situs inversus totalis. Although there is literature that consecrates that in the dextrocardia there is a displacement of the main axis of the heart basis-apex to the right antimere Bernasconi et al.

Dextrocardia is a rare cardiac anomaly where the heart is situated on the right antimeres of the thorax. From Wikipedia, the free encyclopedia. The entire heart and vessels of the base were oslitus and had not been dissected.

Learn more about Birth Defects. After the removal of the sternum and the dissection of the vessels of the base, it was observed that due to the rotation of the heart, its entire right portion was further displaced to the posterior part and this fact was so accentuated in the right auricle that, with dextrocardiaa heart in the observed position, it was not possible to visualize it Figure 1.

The thorax of the anatomical piece was partially dissected, without the presence of the pericardium and the lungs.