RESUMO
Los aneurismas de la arteria innominada son una entidad poco frecuente. Los mecanismos patogénicos son variados y los pacientes suelen cursar asintomáticos, aunque pueden presentar diversos cuadros clínicos. El tratamiento quirúrgico depende de las características anatómicas y debe realizarse para prevenir las complicaciones. Se describe el caso de un hombre de 77 años de edad con angina inestable por aterosclerosis coronaria y enfermedad multivascular, en quien incidentalmente durante una revascularización miocárdica se encontró un aneurisma sacular con un diámetro de 2 cm en el origen de la arteria innominada. Después de la revascularización, una vez fuera de la derivación cardiopulmonar y en el mismo tiempo quirúrgico, se realizó aneurismorrafia sin complicaciones, con resultados satisfactorios y sin secuelas neurológicas.
Innominate artery aneurysms are an uncommon pathology. There are several pathogenic mechanisms involved in their formation, and patients are usually asymptomatic. However, different clinical presentations are possible. Management varies according to anatomic characteristics. Surgical treatment is recommended in order to avoid complications. We present a case of a patient with an innominate artery aneurysm found incidentally during surgery for myocardial revascularization. A 77-year-old male with unstable angina secondary to multivascular ischemic heart disease was subjected to surgery. Coronary angiography did not evaluate the aortic arch and its branches. During the surgical procedure we found a 2-cm saccular aneurysm at the origin of the innominate artery. After completing the revascularization procedure and once the patient was no longer on cardiopulmonary bypass, aneurysmorrhaphy was successfully done.