Operation for nondissecting aneurysm in the descending thoracic aorta

Area of Science:

• Cardiovascular Surgery
• Vascular Surgery
• Thoracic Surgery

Background:

• Limited data exists on mortality and morbidity risks following descending thoracic aortic aneurysm repair.
• Specific focus on outcomes associated with left heart bypass and temporary arterioarterial bypass is lacking.

Purpose of the Study:

• To investigate the risks of mortality and morbidity after descending thoracic aortic aneurysm repair.
• To evaluate the impact of different circulatory support methods on patient outcomes.

Main Methods:

• A multicenter, retrospective study of 120 patients undergoing thoracic aortic aneurysm repair.
• Analysis included patients who received graft replacement, patch repair, or suture repair.
• Circulatory support methods included venoarterial bypass, left heart bypass, and temporary arterioarterial bypass.

Main Results:

• Hospital mortality was 5.8%, with aneurysmal rupture identified as the sole predictor of hospital mortality.
• No significant difference in survival probability was observed among the different circulatory support methods.
• Aneurysmal rupture was the only independent predictor for vascular death, including hospital mortality.

Conclusions:

• Aneurysmal rupture is a significant predictor of mortality and morbidity in descending thoracic aortic aneurysm operations.
• Left heart bypass, temporary arterioarterial bypass, and venoarterial bypass are associated with similar good outcomes.