Dextrocardia causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: José Eduardo Riceto Loyola Junior, M.D.[2]

Overview

There are no established causes for dextrocardia. It may be associated with a condition called situs inversus totalis, in which the whole body has its organs in an inverted fashion (not only the heart but also the spleen and the liver). It may also be in the right hemithorax without affecting the other organs.

Causes

• There are no established causes for dextrocardia that may have distinct causes.
• Three are three conditions classified as dextrocardia:
  • Mirror-image dextrocardia: most common, right-to-left orientation is reversed. Usually has some degree of abdominal situs inversus.
  • Dextroposition: normal heart is shifted to the right by extracardiac factor.
  • Dextroversion: least common, frequent accompanied by other cardiac developmental abnormalities. Caused by a disorder in the development of the cono-truncal region of the heart.
    • Generally caused by a rotation of the ventricular part of the heart to the right with the atria remaining in normal position.