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Cerebral hypoperfusion resulting from improper cannulation positioning during aortic dissection surgery: a case
Qingping Xia1, Fei Lin2, Yong Cao3
1Department of science and education, The People's Hospital of Gaozhou, Gaozhou, Guangdong, China.
Journal of Cardiothoracic Surgery
|September 9, 2024
Summary
Improper cannula placement during selective antegrade cerebral perfusion (sACP) in aortic dissection surgery can lead to cerebral hypoperfusion. This case highlights the critical need for precise positioning and vigilant monitoring to prevent neurological complications.
Area of Science:
- Cardiovascular Surgery
- Neurology
- Vascular Surgery
Background:
- Selective antegrade cerebral perfusion (sACP) is vital for cerebral protection during aortic dissection repair with cardiopulmonary bypass.
- Postoperative neurological complications are a persistent challenge, often linked to cannulation and perfusion issues.
Observation:
- A patient with Marfan syndrome undergoing emergency surgery for Stanford Type A aortic dissection experienced cerebral hypoperfusion during sACP.
- Reduced regional cerebral oxygen saturation (rSO2) and blood pressure instability occurred after initiating sACP via the innominate artery.
Findings:
- Adjusting cannula position improved perfusion, but the patient later showed signs of cerebral hypoperfusion.
- A new cerebral infarction was diagnosed postoperatively, indicating severe neurological compromise.
Implications:
- Precise cannula placement during sACP is critical to avoid adverse neurological outcomes.
- Continuous monitoring of cerebral oxygenation and blood pressure is essential during sACP.
- Cannulation-related issues should be considered in the etiology of postoperative neurological complications after aortic dissection surgery.
