[基于受限立方脊柱模型的肺移植接受者的驱动压力和预后之间的相关性分析]
Chenhao Xuan1, Dapeng Wang1, Shuyun Jiang1
1Department of Critical Care Medicine, the Affiliated Wuxi People's Hospital of Nanjing Medical University (Wuxi People's Hospital), Wuxi 214023, Jiangsu, China.
Zhonghua wei zhong bing ji jiu yi xue
|January 9, 2025
概括
手术后驾驶压力 (DP) 是肺移植后死亡的一个重要风险因素. 早期监测DP可以帮助预测机械通风断奶失败和90天生存结果.
科学领域:
- 心脏病学 心脏病学
- 肺部病理学 肺部病理学
- 关键护理医学 关键护理医学
背景情况:
- 肺部移植是末期肺部疾病的拯救性手术.
- 优化术后护理对于改善患者结果至关重要.
- 驱动压力 (DP) 是一个关键的通风器参数,反映了肺部的符合性.
研究的目的:
- 检查术后驾驶压力 (DP) 与肺移植预后之间的关联.
- 评估早期DP监测在肺移植后预测结果的有用性.
主要方法:
- 一项观察性研究包括101名肺移植接受者.
- 患者被分为低DP (≤15cmH2O) 和高DP (>15cmH2O) 的两组.
- 用Kaplan-Meier曲线,ROC分析和Cox回归来分析临床数据,生存率,移植功能障碍,通风持续时间和ICU停留时间.
主要成果:
- 高DP组显示PGD增加,ECMO和机械通风持续时间更长,ICU停留时间更长.
- 在高DP组中,成功断奶率较低 (81.8%对95.6%).
- 在高DP组中,90天的存活率显着较低 (63.6%vs. 83.8%). DP预测了90天死亡率 (AUC=0.664) 和断奶失败 (AUC=0.794).
结论:
- 术后驾驶压力升高是肺移植后死亡的独立风险因素.
- 早期的术后DP监测可以作为机械通风断奶失败和90天死亡率的宝贵预测指标.
相关概念视频
01:24Pressure Relationships in Thoracic Cavity
Breathing, otherwise known as pulmonary ventilation, is the process of air movement into and out of the lungs. The main mechanisms propelling pulmonary ventilation are atmospheric pressure (Patm), intra-pulmonary (Ppul ) or intra-alveolar pressure (Palv) within the alveoli, and intrapleural pressure (Pip) within the pleural cavity.
Breathing Mechanisms
Both intra-alveolar and intrapleural pressures rely on specific lung properties. The ability to breathe—allowing air to enter the lungs during...
Breathing Mechanisms
Both intra-alveolar and intrapleural pressures rely on specific lung properties. The ability to breathe—allowing air to enter the lungs during...
01:19Factors Affecting Pulmonary Ventilation
Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
01:08Pneumothorax II: Pathophysiology
Pneumothorax means the presence of air in the pleural space — the thin potential gap between the visceral and parietal pleura. This condition disrupts the normal pressure balance that keeps the lungs inflated, leading to partial or complete collapse of the affected lung.Normal physiologyUnder normal conditions, the pleural space maintains a slightly negative intrapleural pressure, which keeps the lungs expanded against the chest wall. This negative pressure creates a delicate balance between...