Cœur en sabot explained

Cœur en sabot
Field:	Cardiology
Differential:	Tetralogy of Fallot

Cœur en sabot (French for "clog-shaped heart" or "boot-shaped heart"^[1]) is a radiological sign seen most commonly in patients with tetralogy of Fallot,^[2] a cyanotic congenital heart disease. It is a radiological term to describe the following findings in the x-ray:

• The cardiac size is normal or mildly enlarged.
• The left cardiac border shows uplifted apex "outermost lower most point of the heart at the left side" denoting right ventricular enlargement.
• exaggerated cardiac waist, which means that the pulmonary segment is small and concave suggesting infundibular pulmonary stenosis.

Echocardiography has been used for confirmation and differentiation of congenital heart diseases.

Notes and References

1. Haider EA. The boot-shaped heart sign . Radiology . 246 . 1 . 328-329. 2008 . 10.1148/radiol.2461041673 . 18096546 .
2. Web site: Definition: Cœur en sabot from Online Medical Dictionary . 2009-01-02.