Association of bilateral inferior vena cava with azygos and hemiazygos continuation and aortic coarctation in a child

Abstract

Introduction. Developmental variations of the inferior vena cava (IVC) rarely cause symptoms, and they are usually detected during routine examinations performed for other reasons. The prevalence in the general population is between 0.07% and 8.7%. Various anomalies of the IVC can be seen depending on abnormal regression or abnormal persistence of embryonic veins. They are usually associated with more complex intracardiac and atrioventricular septal defects, partial anomalous pulmonary venous connection, and pulmonary atresia. Case outline. We presented an 18-month-old patient with double IVC, IVC interruption, azygos, and hemiazygos continuation associated with aortic coarctation. The vein malformation was discovered during percutaneous balloon angioplasty of the aortic re-coarctation and confirmed by using cross-sectional imaging modalities. Our patient had no symptoms of IVC malformation. Conclusion. In clinical practice, double IVC should be suspected in patients with recurrent pulmonary emboli. Another important point in practice is the identification of those anomalies to avoid potential complications of retroperitoneal surgery and cannulation during cardiac surgery.

Keywords

• double inferior vena cava
• interruption of inferior vena cava
• hemiazygos continuation
• azygos continuation