The Importance of Wnt-signaling in the Pathobiology of Systemic Inflammation and Organ Dysfunction After Cardiac Surgery
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 64
- 试验地点
- 1
- 主要终点
- Plasma concentration of sFRP1 (ng/ml)
研究概览
简要总结
Cardiac surgery saves lives when patients suffer from cardiac disease. Local inflammation is important for tissue repair and wound healing after such an operation. Inflammation starts already when the patient is treated in the intensive care unit. When inflammatory proteins (cytokines) are released into the circulation, they cause also a systemic inflammation, which alerts the immune system of the body and activates defence mechanisms (=adaptive response). In some patients, systemic inflammation is out of control thereby causing organ dysfunctions, shock, and in the most severe cases even death (=maladaptive response). The aim of this study is to investigate the early phase of inflammation after the operation. Repeated blood samples will be taken of patients undergoing cardiac surgery to describe the patterns and dynamics of inflammation proteins. A better understanding of these mechanisms will potentially lead to improved treatment of patients after cardiac surgery.
详细描述
The aim of this project is to understand early inflammation mechanisms after cardiac surgery. Therefore, repeated blood samples of patients undergoing cardiac surgery will be taken. Patients are selected after "open" cardiac surgery (via sternotomy), when when they require postoperative care in the cardiovascular intensive care unit. The blood samples will be analysed in collaboration with the Inflammation Research Unit of the Department of Internal Medicine at the University Hospital Zurich.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Cardiac surgery via sternotomy
- •Coronary-bypass bypass surgery with or without valve surgery
- •Postoperative hospitalisation in the cardio-surgical ICU
- •Available informed consent
排除标准
- •Preoperative infections (e.g. endocarditis)
- •Preoperative use of steroids or other immunosuppression
结局指标
主要结局
Plasma concentration of sFRP1 (ng/ml)
时间窗: Up to 48 hours after ICU admission
Measured by a commercially available ELISA
Plasma concentration of sFRP5 (ng/ml)
时间窗: Up to 48 hours after ICU admission
Measured by a commercially available ELISA
Plasma concentration of Wnt5a (ng/ml)
时间窗: Up to 48 hours after ICU admission
Measured by a commercially available ELISA
Plasma concentration of WIF-1 (pg/ml)
时间窗: Up to 48 hours after ICU admission
Measured by a commercially available ELISA
次要结局
- Length of ICU stay (days)(Up to 4 weeks)
- Daily fluid balance (ml)(Up to 48 hours after ICU admission)
- Occurrence of complications (yes/no): composite endpoint of hemodynamic instability (defined as norepinephrine concentration = or > 0.1mcg/kg/min), delirium (defined as ICDSC score = or > 4), infections(Up to 7 days after ICU admission)
研究者
Alain Rudiger
Prof. Dr. med.
University of Zurich
