The Role of Ischaemia-reperfusion Injury in the Pathogenesis of Muscle Wasting After Thoracic Aortic Surgery (RIMMAS)
Observational Study Into the Effect on Muscle Wasting and Multiple Organ Function of Ischaemia-reperfusion Injury After Major Aortic Surgery
研究概览
详细说明
Some patients who are critically ill develop a syndrome of muscle weakness called Intensive Care Unit Acquired Paresis. This syndrome involves the development of severe muscle wasting and weakness and affects all skeletal muscles including the muscles which help one breathe. Muscle wasting and weakness whilst critically ill cause prolongation of mechanical ventilation, longer stays on the ICU, reduced mobility and prolonged rehabilitation in survivors. It has also been shown to increase the risk of death on ICU, due to an inability to wean patients from mechanical ventilation. Most patients recover; however in some, the effects last for many years and patients may not recover fully.
Although there is some understanding of why this syndrome develops, the molecular processes underlying the muscle wasting are not well understood. From the current scientific evidence, the investigators have identified a group or family of proteins believed to be important in the development of this condition, the activity of which are regulated by disease processes thought to lead to Intensive Care Unit Acquired Paresis (e.g. infection, inflammation, oxidative stress, immobility).
This research aims to investigate the role of these proteins in human tissue from patients who are at risk of Intensive Care Unit Acquired paresis. Even patients who do not go on to develop the full syndrome, in the early stages of ICU care, show some signs of muscle changes and loss of strength.
研究类型
注册 (实际的)
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- All adult (>18) patients undergoing major aortic or aortic valve surgery
Exclusion Criteria:
- Pre-existing cause for neuromuscular weakness or severe wasting (such as previous stroke, neuromuscular disease or malignancy)
学习计划
研究是如何设计的?
设计细节
队列和干预
团体/队列 |
干预/治疗 |
---|---|
Wasting patients
Patients with >10% loss of skeletal muscle one week after major aortic surgery
|
|
Non-wasting patients
Patients with <10% loss of skeletal muscle one week after major aortic surgery
|
研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Change in Rectus Femoris muscle cross-sectional area (%)
大体时间:7 days
|
Percentage change in cross sectional area of Rectus Femoris muscle (cm2) in the first post-operative week, from pre-operative measurement (measured the day before surgery), repeated on day 7 post-operatively
|
7 days
|
合作者和调查者
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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