The degree and significance of postoperative mental changes caused by surgery and anesthesia are still debatable. However, after open heart surgery and after extensive surgery on elderly patients, long-lasting mental changes do occur. The susceptibility of older people to such cerebral damage may be due to preoperative marginal circulation in parts of the brain, and a small reserve of functioning neurones compared to younger patients.
- cerebral damage
- Psychogical alterations
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