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Restoration of cerebral blood flow by extraanatomic bypass in acute aortic dissection
Insights
A patient with acute type A aortic dissection and coma regained consciousness after a femoro-carotid bypass. Subsequent surgery successfully repaired the ascending aorta and aortic valve.
Area of Science:
- Cardiovascular Surgery
- Neurology
- Vascular Surgery
Background:
- Acute type A aortic dissection can lead to severe neurological complications.
- Carotid artery obstruction is a critical complication of aortic dissection.
- Coma in aortic dissection signifies a dire neurological state.
Observation:
- A patient presented with coma secondary to acute type A aortic dissection.
- Angiography confirmed obstruction of the right common carotid artery.
- No signs of aortic rupture or severe insufficiency were present.
Findings:
- An extraanatomic femoro-carotid bypass was successfully performed.
- The bypass re-established cerebral blood flow, leading to the patient's recovery of consciousness.
- A second surgery involved reconstruction of the ascending aorta and aortic valve.
Implications:
- Extraanatomic bypass is a viable strategy for managing carotid obstruction in aortic dissection.
- Prompt intervention can reverse coma and improve neurological outcomes.
- This case highlights the importance of multi-stage surgical repair for complex aortic dissections.
Abstract:
This report describes a case of acute type A aortic dissection which had resulted in coma. Angiography had revealed obstruction of the right common carotid artery. Since signs of impending aortic rupture or severe aortic insufficiency were missing, an extraanatomic femoro-carotid bypass was inserted and resulted in the patient's regaining consciousness. Two days after the first operation, the ascending aorta and aortic valve were reconstructed successfully anastomosing the divided caudad end of the bypass to the ascending aortic graft.