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麻醉药物对脑血流动力学的影响
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF BIOMEDICAL ENGINEERING
- Issue:
- 4
- DOI:
- 10.3760/cma.j.issn.1674-1927.2008.04.019
- Key Word:
- No keyword available
Abstract： @@ 健康成人的脑循环通过自身调节可为神经系统活动定量提供氧和葡萄糖,该自身调节会受术中麻醉用药的影响,进而改变脑的氧和能量供应.使用麻醉药物的同时控制颅内压(intracranial pressure,ICP)在正常范围,是手术安全的前提之一.颅内压由骨性颅腔的内容物,如脑组织、颅内血容量,脑脊液所决定.颅腔内容物在颅内静脉回流不受损的情况下.很大程度上取决于脑血流量(cerebral blood flow,CBF)以及脑脊液生成和吸收的平衡.麻醉药物通过多种机制改变脑血流量.
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