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Total aortic arch replacement under intermittent pressure-augmented retrograde cerebral perfusion
Hiroshi Kubota1, Kunihiko Tonari, Hidehito Endo
1Department of Cardiovascular Surgery, Kyorin University, Tokyo, Japan. kub@ks.kyorin-u.ac.jp
Journal of Cardiothoracic Surgery
|November 4, 2010
Summary
This study demonstrates a novel retrograde cerebral perfusion technique with intermittent pressure augmentation for brain protection. The clinical application showed successful patient recovery with no neurological deficits after prolonged circulatory arrest.
Area of Science:
- Neurosurgery
- Cardiovascular Surgery
- Cerebral Perfusion
Background:
- Cerebral protection during circulatory arrest is critical in complex cardiovascular surgeries.
- Retrograde cerebral perfusion (RCP) is an established technique, but its efficacy can be enhanced.
- A novel RCP protocol involving intermittent pressure augmentation was previously validated in a canine model.
Observation:
- The novel RCP protocol was clinically applied in a patient requiring prolonged circulatory arrest.
- Near-infrared oximetry was used to monitor intracranial blood oxygen saturation during the procedure.
- The patient underwent a lengthy period of circulatory arrest with RCP.
Findings:
- The patient regained consciousness shortly after the operation.
- No neurological deficits were observed post-operatively.
- Intracranial blood oxygen saturation demonstrated timely recovery with each pressure augmentation cycle.
Implications:
- This clinical case suggests the potential efficacy of intermittent pressure augmentation in enhancing brain protection during RCP.
- The technique may offer improved neurological outcomes in patients undergoing extended circulatory arrest.
- Further clinical studies are warranted to confirm the safety and effectiveness of this modified RCP protocol.