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在八十岁和老年患者的败血症后,淋巴细胞子集的动态变化
Jiahui Zhang1, Wei Cheng1, Dongkai Li1
1Department of Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
败血症显著降低了八十岁患者的淋巴细胞和CD3+T细胞数量. 持续较低的CD3+T细胞数量在败血症后与老年人和八十多岁的个体28天死亡率的增加有关.
科学领域:
- 免疫学 免疫学 免疫学
- 老年病的医生 老年病的医生
- 关键护理医学 关键护理医学
背景情况:
- 败血症是一种危及生命的疾病,其特点是由于宿主对感染的反应失调而导致器官功能障碍.
- 老年人群,特别是八十岁以上的人群,表现出明显的免疫反应,并且面临严重败血症结局的更高风险.
研究的目的:
- 检查八十岁和老年败血症患者外围淋巴细胞子集的早期和动态变化.
- 确定这些淋巴细胞子集变化与28天死亡率之间的关联.
主要方法:
- 一项前性队列研究,涉及3601名ICU患者 (2017年3月至2023年1月).
- 周围血液样本通过流细胞计在入院时,第三天和第七天分析淋巴细胞子集.
- 使用Kaplan-Meier分析和Cox回归来评估预后因素的死亡率.
主要成果:
- 败血症导致八十岁患者的淋巴细胞和CD3+T细胞数量显著减少.
- 在第3天和第7天 CD3+ T 细胞的不恢复或延迟恢复与老年人和八十多岁人群中28天死亡率较高有关.
- 年龄和CD3+T细胞计数被确定为败血症患者28天死亡率的独立风险因素.
结论:
- 败血症会导致淋巴细胞和CD3+T细胞的数量减少,特别是在八十岁的人群中.
- 发生败血症后持续低CD3+T细胞计数是老年人死亡率的重要预测因素.
- 监测CD3+T细胞动态可能有助于老年败血症患者的风险分层.
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