Differential hypothermic arrest with double-arterial cannulation

Thoracic aortic aneurysm (TAA) is a dilation of the aorta of >150% of its normal diameter for a given segment. Weakening of aortic walls results in saccular, fusiform, or diffuse dilation. The incidence of TAA is about 10 for every 100,000 adults, with 20% being of familial origin. TAA carries a high risk of morbidity and mortality, with surgery and thoracic endovascular aortic repair being the definitive treatment. In this case report, we present an innovative approach for addressing concomitant coronary artery disease and TAA repair using double-arterial cannulation and differential hypothermic circulatory arrest without any postoperative neurological sequelae.