患有血流感染的患者的死亡风险因素是由于多药耐药的格兰氏阴性细菌
Ana Luisa Corona-Nakamura1, Martha Judith Arias-Merino2, Sussan Alely Urbina-Rosas1
1Division of Medicine, National Western Medical Center, Mexican Social Security Institute (IMSS), Guadalajara, Jalisco, Mexico.
Frontiers in medicine
|January 28, 2026
概括
耐多药格拉姆阴性细菌血流感染导致28.6%的死亡率,耐卡巴胺菌株显著增加风险. 无效的经验治疗是死亡率的关键预测因素.
科学领域:
- 传染性疾病 传染性疾病
- 关键护理医学 关键护理医学
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 患有血流感染 (BSI) 的住院患者因多药耐药格拉姆阴性细菌 (MDR-GNB) 引起的高死亡率.
- 耐卡巴尼姆的格拉姆阴性细菌 (CR-GNB) 是一个日益严重的全球健康问题,复杂化治疗和增加不良结果.
研究的目的:
- 在住院患者中识别30天全因死亡的风险因素,这些患者患有格拉姆阴性菌根 (GNB) BSI.
- 分析特定的GNBs,特别是耐卡巴胺菌株对患者结局的影响.
主要方法:
- 在2022年1月至12月期间,对患有单微生物GNBBSI的住院患者进行了回顾性队列研究.
- 分析包括单变量和调整的考克斯比例危险模型,以确定死亡率预测因素.
- 主要终点是阳性血液培养后30天内全因死亡率.
主要成果:
- 总共包括126名患者,30天死亡率为28.6% (36例死亡).
- 耐卡巴胺细菌占死亡人数的88.9%. 患有CR-GNB (13.2倍) 和耐卡巴胺的Acinetobacter baumannii (4.2倍) 的患者的死亡率显著增加.
- 死亡率的独立预测因素包括年龄较大 (≥46岁),CR-GNB感染,无效的经验治疗和败血性休克.
结论:
- 无效的实证治疗是GNBBSI (HR 10.2) 死亡率的关键,独立预测因素.
- 这一群体的高死亡率与耐卡巴胺的格拉姆阴性细菌,特别是Acinetobacter baumannii强烈相关.
- 迫切需要采取战略来改善经验治疗和打击CR-GNB感染.
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