Two-stage hybrid treatment strategy for an adult patient with aortic arch coarctation, poststenotic aneurysm, and hypoplastic left subclavian artery: A case report.

Rationale: Coarctation of aorta in adulthood is usually complicated by other cardiovascular anomalies, posing great technical challenge for intervention. Patient concerns: Here, we report an extremely rare case of aortic arch coarctation combined with a poststenotic biloculated calcified aneurysm and hypoplastic left subclavian artery. Interventions: First, an extra-anatomic bypass was established, along with narrowing of aorta just proximal and distal to the aneurysm. While the bypass graft significantly relieved trans-coarctation gradient, the latter procedure decreased intra-aneurysm pressure and created landing zones for aneurysm occlusion. Six months later, 2 muscular ventricular septal defect occluders were deployed at the proximal and distal orifice of the aneurysm. Outcomes: Follow-up computed tomography angiography confirmed the absence of contrast leakage into aneurysm. Conclusions: A 2-stage hybrid approach described here appears to be feasible, safe, and associated with favorable clinical outcomes in the treatment of complicated aortic coarctation and poststenotic aneurysm.