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id=\"material_title\">脑缺血灶背后的“三高”风险与实用防治\u003C/div>\n\n\u003Cdiv class=\"shg-section-card\" style=\"background-color:#f8fafb;\">\n  \u003Cp>门诊常见不少“头晕”的中年男士，大家往往以为是血压或血脂高的老毛病，但其实背后可能有更复杂的健康隐患。作为中医科医生，我发现很多人忽视了高血压、高脂血症与脑供血不足的关联。今天通过一个典型病例，帮助大家识别和应对这些风险。\u003C/p>\n\u003C/div>\n\n\u003Cdiv class=\"shg-section-card\" style=\"background-color:#f7f7fb;\">\n  \u003Cp>上周我接诊了一位中年男性患者，体重偏高，有高血压和脑卒中病史。五天前突发持续头晕，站立时加重，平卧缓解，伴轻度恶心，无呕吐、视物旋转、耳鸣、肢体麻木、无力或意识障碍。患者原以为是血压波动，因担心症状加重来社区卫生服务站。测血压145/95mmHg，神经系统和心肺检查未见急性卒中或肌力下降。社区无法做脑部影像，考虑有脑血管功能异常相关头晕的可能，建议转上级医院完善颅脑影像；期间若症状加重或出现肢体异常务必即刻就医。调整降压药和改善血脂、促进脑血流药物，随访头晕缓解，需定期监测风险。\u003C/p>\n\u003C/div>\n\n\u003Cdiv class=\"shg-section-card\" style=\"background-color:#f8f8fd;\">\n  \u003Cp>头晕是常见且复杂的症状。像这位患者，持续头晕合并高血压和脑缺血灶，常见原因是脑部小血管长期供血不足，即慢性脑缺血。其机制为动脉硬化导致脑细胞缺氧但未梗死。头晕也可能由颈椎病、耳石症、体位性低血压、焦虑等引起，无肢体麻木、语言不清、意识混乱时一般无需过度紧张。生理性轻度头晕如久未进食、突然起身也常见，短暂无其他症状通常无大碍。高血压和高脂血症是脑缺血灶的重要危险因素，血压≥140/90mmHg需控制[1]，血脂异常（总胆固醇＞5.2mmol/L或低密度脂蛋白＞3.4mmol/L[2]）会加速动脉硬化。有些患者还伴冠心病或椎基底供血不足，均为脑供血不足的根源。\u003C/p>\n\u003C/div>\n\n\u003Cdiv class=\"shg-section-card\" style=\"background-color:#f9fafc;\">\n  \u003Cp>有脑缺血灶及“三高”风险的人，日常管理至关重要。建议：\u003C/p>\n  \u003Cp>1.控制血压，家庭监测每周不少于3次，目标140/90mmHg以下[1]。\u003C/p>\n  \u003Cp>2.饮食限盐（每日≤5克），减少油腻和高胆固醇食物[2]。\u003C/p>\n  \u003Cp>3.每周中等强度运动150分钟，如快走、健身操（无禁忌时）[1]。\u003C/p>\n  \u003Cp>4.体重控制，BMI建议不超28（患者BMI约28.7，属肥胖）[1]。\u003C/p>\n\u003C/div>\n\n\u003Cdiv class=\"shg-section-card\" style=\"background-color:#f6f8fa;\">\n  \u003Cp>【健康小贴士】\u003C/p>\n  \u003Cp>根据中国标准，18~64岁成年人的BMI在24.0~28.0之间为超重，达到或超过28.0则属于肥胖。科学减重需制定合理计划，严格调整饮食结构，减少高热量、高糖分食物的摄入，并循序渐进地开展有氧耐力运动。尤为重要的是，减重与运动方案必须个体化，开始前建议咨询医生，综合考虑年龄、身体状况、既往病史等因素，以便为您量身定制最适宜的方案。\u003C/p>\n\u003C/div>\n\n\u003Cdiv class=\"shg-section-card\" style=\"background-color:#f8fafb;\">\n  \u003Cp>“三高”患者建议定期就诊心内科、神经内科或内分泌科，如有单侧肢体麻木、语言不清、意识障碍等，需及时转上级医院做脑部CT或MRI。\u003C/p>\n  \u003Cp>药物按医嘱服用，不自行加量换药，每半年复查血脂和血压，评估心脑功能。\u003C/p>\n  \u003Cp>“三高”引发的脑缺血，只要早发现、规范干预，大多能长期控制。偶有头晕、恶心，按时复查可及时防范风险。身体有信号，及时管理，守护脑供血健康。\u003C/p>\n\u003C/div>\n\n\u003Csection class=\"refs\" style=\"margin-top:24px;padding-top:12px;border-top:1px solid #e5e5e5;font-size:13px;color:#666;line-height:1.6;\">\n  \u003Cdiv style=\"font-weight:600;margin-bottom:6px;\">参考文献\u003C/div>\n  \u003Cdiv>[1] 国家心血管病中心. 中国心血管健康与疾病报告 2023.\u003C/div>\n  \u003Cdiv>[2] 中华医学会心血管病学分会. 中国成人血脂异常防治指南（2016年）.\u003C/div>\n\u003C/section>\n\n\u003Cstyle>\n.shg-section-card {\n  box-sizing:border-box;\n  max-width:660px;\n  margin-left:auto;\n  margin-right:auto;\n  font-size:17px;\n  line-height:1.74;\n  word-break:break-all;\n  border:none;\n  background-repeat:no-repeat;\n}\n.shg-section-card p {\n  margin:0 0 12px 0;\n  padding:0;\n  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