Coartaction of the aorta is characterized by a localized deformity narrowing the aortic lumen. The zone of coartaction is characteristically located beyond the origin of the left subclavian artery. Most of them are located in the zone of the posterior wall of the oposit aorta of the invertion of the ductus. The coartaction of the aorta amounts up to 5.1% of the congenital cardiac malformations and constitutes the eigth cardiac malformation in frequency; Is a malformation tipically associated with the Turner syndrome. The aims of this report were to describe and to analyze the mitral pathology and the clinicosonographic experience in patients with coarctation of the aorta associated to congenital mistral pathology during the last 10 years. An observtiona, descriptive and retrospective study was performed. The history of 103 patients with a diagnosis of coartaction of the aorta assisted in our Hospital were studied. All the patients were confirmed by color Doppler echocardiography. Assuming that the mitral pathology is a frequent association that affects strongly the morbi-mortality and the prognosis of such patients is an indisensable condition to investigate its presence in, front of a diagnosis of coartaction of the aorta (AU)