Assessment of Human Diaphragm Strength by Magnetic and Electric Stimulation After Ultrasonography Phrenic Nerve Tracking : a Randomized, Cross Over, Physiologic Study in Critically Ill Patients Requiring Invasive Mechanical Ventilation
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 120
- 试验地点
- 2
- 主要终点
- Tracheal pressure (Ptrach) during diaphragm pacing
研究概览
简要总结
Development and validation of a new affordable and easy-to-use phrenic nerve stimulation tool for diaphragm strength assessment in intensive care unit
详细描述
In intensive care unit, various forms of sepsis, undernutrition, surgery, global inflammation, iatrogeny, and mechanical ventilation, contribute to the overall muscular involvement including the diaphragm.
Assessment of diaphragm dysfunction is a critical issue for patients under mechanical ventilation, providing prognosis information and leading to the best therapeutic choices.
Up to now, for sedated ventilated critical care patient, expensive magnetic phrenic nerve stimulation equipment is needed to evaluate diaphragm strength.
In this study, the investigators aim to develop an affordable easy-to-use phrenic nerve stimulation tool, with ultrasonography and a nerve stimulator usually used for neuromuscular transmission monitoring. Hypothesis is that phrenic pacing using this new method is equivalent to the Gold Standard.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Diagnostic
- 盲法
- None
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
- •ICU patient with invasive mechanical ventilation
- •Sedated patient with a Richmond Agitation-Sedation Scale of -4 or -5
排除标准
- •Contraindication for magnetic stimulation (Pacemaker)
- •Hemodynamic or respiratory instability : PaO2/FiO2 < 200 mmHg, noradrenaline > 0,3 µg/kg/min, dobutamine > 10 µg/kg/min
- •Neuromuscular disease or recent use of neuromuscular blocking agents (2h30) with a TOF ratio below 4/4 95%.
- •Refusal of study participation or to pursue the study by the patient, no consent
- •Pregnancy or breastfeeding
- •Absence of coverage by the French statutory healthcare insurance system
结局指标
主要结局
Tracheal pressure (Ptrach) during diaphragm pacing
时间窗: During electric of magnetic phrenic nerve stimulation
Negative pressure in the occluded breathing circuit, assessed with a manometer located just after the endotracheal tube, during diaphragm stimulation
次要结局
- Distance in millimeter between anatomical and ultrasound phrenic nerve location(During ultrasonography phrenic nerve tracking)
- Behavioral Pain Scale (BPS) after stimulation(Immediately after phrenic nerve stimulation)