黄彩休,游志坚

术后认知功能障碍（Postoperative cognitive dysfunction，POCD）及术后谵妄（Postoperative delirium，POD）是围术期常见的神经系统并发症[1]，尤其在老年手术患者中发生率较高，严重影响患者术后恢复质量与长期预后。近年来，术前睡眠障碍作为围术期关键风险因素，其与术后认知功能的关联已成为临床研究热点。本文基于20项相关临床研究与综述文献，系统梳理术前睡眠障碍对术后认知功能的影响特征、潜在作用机制及临床干预策略，旨在为围术期认知功能保护提供理论依据与实践参考。

术前睡眠障碍；术后认知功能障碍；术后谵妄；危险因素；机制

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