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[Thoughts about brain protection in carotid surgery]
1Centre Médical du Trencavel, Béziers.
Annales De Chirurgie
|January 1, 1993
Summary
Carotid surgery aims to prevent strokes, but technical errors, not clamping, are the main cause of post-operative strokes. Further research is needed to assess the impact of carotid clamping on higher brain functions.
Area of Science:
- Neurology
- Vascular Surgery
Context:
- Carotid surgery aims to prevent strokes, but current protective measures are not fully effective.
- Post-operative strokes raise questions about brain protection failure, technical faults, or incorrect indications.
Purpose:
- To analyze the causes of neurological events after carotid repair.
- To investigate the incidence of higher function disorders following carotid surgery.
Summary:
- This study reviewed 140 carotid repairs in 126 patients (mean age 68.4 years) with an average clamping time of 21.8 minutes.
- Brain protection involved general anesthesia, heparinization, hyperoxygenation, and light hypercapnia, without shunting or monitoring.
- Neurological events included 2 deaths and 1 hemiplegia (2.1%) attributed to technical errors or incorrect indications, and 3 resolving neurological events (2.1%) due to clamping intolerance.
Impact:
- Technical errors, rather than clamping, appear to be the primary cause of stroke after carotid repair.
- Higher cognitive function disturbances were observed in 17.8% of patients.
- A proposal for psychometric testing to evaluate carotid clamping effects on higher functions is suggested.