Validation of two echocardiographic indexes to improve the diagnosis of complex coarctations.

TitleValidation of two echocardiographic indexes to improve the diagnosis of complex coarctations.
Publication TypeJournal Article
Year of Publication2008
AuthorsMivelaz Y, Di Bernardo S, Meijboom EJ, Sekarski N
JournalEuropean journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery
Volume34
Issue5
Pagination1051-6
Date Published2008 Nov
Abstract

Coarctation of the aorta is one of the most common congenital heart defects. Its diagnosis may be difficult in the presence of a patent ductus arteriosus, of other complex defects or of a poor echocardiographic window. We sought to demonstrate that the carotid-subclavian artery index (CSA index) and the isthmus-descending aorta ratio (I/D ratio), two recently described echocardiographic indexes, are effective in detection of isolated and complex aortic coarctations in children younger and older than 3 months of age. The CSA index is the ratio of the distal aortic arch diameter to the distance between the left carotid artery and the left subclavian artery. It is highly suggestive of a coarctation when it is <1.5. The I/D ratio defined as the diameter of the isthmus to the diameter of the descending aorta, suggests an aortic coarctation when it is less than 0.64.

DOI10.1016/j.athoracsur.2012.04.095
Alternate JournalEur J Cardiothorac Surg