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Cerebral function after aortic surgery using retrograde cerebral perfusion: report of three cases
N Inoue1, S Yoshioka, O Kobayashi
1Department of Neurosurgery, Oita Prefectural Hospital, Oita.
Summary
This study analyzed neurological outcomes after aortic aneurysm surgery using retrograde cerebral perfusion (RCP). While temporary neurological disturbances occurred, patients recovered fully, highlighting the need to refine RCP techniques.
Area of Science:
- Neurosurgery
- Neurology
- Cardiovascular Surgery
Background:
- Investigates neurological outcomes in three patients undergoing aortic aneurysm surgery with retrograde cerebral perfusion (RCP).
- Presents the first detailed analysis of postoperative neurological studies following this specific surgical approach.
Observation:
- Cerebral oxygenation monitored via near-infrared spectroscopy (NIR) during RCP.
- Postoperative assessments included neurological scoring, CT, MRI, and quantitative local cerebral blood flow (LCBF) using SPECT.
Findings:
- MRI T2WI revealed spotty high-intensity areas in the brain, correlating with transient consciousness and mental disturbances.
- All patients showed gradual neurological improvement, returning to their preoperative state.
- Improved LCBF correlated significantly with neurological recovery.
Implications:
- Suggests that current RCP methods require optimization to mitigate postoperative neurological disturbances.
- Highlights the importance of monitoring cerebral blood flow and oxygenation during and after RCP for aortic aneurysm repair.