Ventilator Settings on Patients With Acute Brain Injury
Relation Between Lung Protective Mechanical Ventilation, Intracranial Pressure, Autoregulation and Brain Oxygenation in Neurointensive Care Patients
研究概览
详细说明
The primary goal is to carry out baseline measurements to enable conclusions concerning the safety of lung protective ventilator settings before extending the study to patients with more severe brain and/or lung injury in the future.
The primary objective is to investigate if lung protective ventilator settings (higher Positive end-expiratory pressure and lower tidal volume) as compared with conventional settings.
- increase intracranial pressure
- diminish cerebral vasoreactive autoregulation as assessed by pressure reactivity index, ie pressure reactivity index will turn positive, which means that it will change the state from intact to impaired autoregulation.
The secondary objective is an exploratory analysis of the relationship between ventilator settings and other well defined respiratory, cerebral, and cardiovascular variables, including transpulmonary pressure.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
-
-
Troms
-
Tromsø、Troms、挪威、9010
- University Hospital North Norway
-
-
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
描述
Inclusion Criteria:
- • Any tracheally intubated or tracheotomized adult patient with ABI with GCS< 9 on controlled ventilation requiring continuous ICP measurement.
- Proxy informed consent from relatives.
Exclusion Criteria:
- • ICP > 22 mmHg before treatment of high ICP
- Acute respiratory failure defined as partial pressure of oxygen/ inspiratory oxygen fraction (PaO2/FiO2) ratio < 40 kPa and Xray pathology
- History of pulmonary disese: Chronic respiratory failure diagnosis stage III and IV in the GOLD classification, pulmectomy, lobectomy or restrictive lung disease.
- Body mass index (BMI) > 35.
- Known right or biventricular cardiac failure with cardiac index < 2,5 L/min/m2 or ejection fracture < 40 %.
- Refractory hypovolemia as diagnosed with pulse pressure variation > 12 % with tidal volume 8 ml/predicted bodyweight (intubated on controlled ventilation) or passive leg rise test with > 10 % increase in stroke volume measured by VTI echocardiography or PICCO.
- Medulla lesion that affect the autonomic nervous system.
- Patients who has undergone decompressive craniectomy.
学习计划
研究是如何设计的?
设计细节
- 主要用途:基础科学
- 分配:不适用
- 介入模型:单组作业
- 屏蔽:无(打开标签)
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的:Ventilator setting
Positive end-expiratory pressure , Tidal volume
|
Positive end-expiratory pressure 12, Tidal volume 6 milliliter/kilogram predicted body weight
|
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 |
|---|---|---|
|
Intracranial pressure
大体时间:120 minutes
|
intracranial pressure increase with lung protective setting
|
120 minutes
|
|
pressure reactivity index
大体时间:120 minutes
|
Diminished pressure reactivity index
|
120 minutes
|
合作者和调查者
调查人员
- 首席研究员:Shirin K Frisvold、University Hospital of North Norway
出版物和有用的链接
一般刊物
- Mauri T, Yoshida T, Bellani G, Goligher EC, Carteaux G, Rittayamai N, Mojoli F, Chiumello D, Piquilloud L, Grasso S, Jubran A, Laghi F, Magder S, Pesenti A, Loring S, Gattinoni L, Talmor D, Blanch L, Amato M, Chen L, Brochard L, Mancebo J; PLeUral pressure working Group (PLUG-Acute Respiratory Failure section of the European Society of Intensive Care Medicine). Esophageal and transpulmonary pressure in the clinical setting: meaning, usefulness and perspectives. Intensive Care Med. 2016 Sep;42(9):1360-73. doi: 10.1007/s00134-016-4400-x. Epub 2016 Jun 22.
- Smielewski P, Lavinio A, Timofeev I, Radolovich D, Perkes I, Pickard JD, Czosnyka M. ICM+, a flexible platform for investigations of cerebrospinal dynamics in clinical practice. Acta Neurochir Suppl. 2008;102:145-51. doi: 10.1007/978-3-211-85578-2_30.
- Koutsoukou A, Katsiari M, Orfanos SE, Kotanidou A, Daganou M, Kyriakopoulou M, Koulouris NG, Rovina N. Respiratory mechanics in brain injury: A review. World J Crit Care Med. 2016 Feb 4;5(1):65-73. doi: 10.5492/wjccm.v5.i1.65. eCollection 2016 Feb 4.
研究记录日期
研究主要日期
学习开始 (实际的)
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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