Effect of Prone Position on Renal Resistive Index Among Patients With Acute Respiratory Distress Syndrome. The Role of Intra-abdominal Pressure
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 20
- 试验地点
- 2
- 主要终点
- change in renal resistive index (RRI)
研究概览
简要总结
Patients suffering from Acute Respiratory Distress Syndrome (ARDS) with a prone position (PP) indication will benefit from measurements of renal resistive index, intra-abdominal pressure (IAP), urinary oxygen tension (uPO2) and ventilatory mechanics in supine position (baseline IAP), after 2 hours in PP at the current IAP value, thirty minutes after patients' abdomen suspension in order to resume baseline IAP and after patients' are turned back to supine position.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Other
- 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
- •ARDS patients according to Berlin criteria, intubated, mechanically ventilated
- •with PaO₂/FiO₂ < 150 mmHg,
- •neuromuscular blockade
- •with an indication of PP done by the physician in charge
- •possibility to differ PP for one hour
- •patients should be hemodynamically stable since at least 4 hours
排除标准
- •Pregnant or breast-feeding women
- •legal protection, no social security affiliation
- •PP contra-indication
- •nasogastric tube contra-indication
- •extra corporeal membrane oxygenation
- •acute kidney injury at inclusion according to K-DIO criteria, chronic kidney disease defined as an estimated glomerualr filtration rate less than 30 ml/min/1.73m², kidney transplantation, renal artery stenosis, solitary kidney, albuminuria > 1.25 mg/ml
- •cardiac arrhythmia
- •advanced cirrhosis
结局指标
主要结局
change in renal resistive index (RRI)
时间窗: At inclusion (in supine position), two hours after prone positioning, 30-minutes after the abdomen suspension maneuver
RRI measurement will be performed on a right kidney arcuate/interlobar artery, with a high frequency Doppler probe. Three to five consecutive measures will be obtained then RRI computed according to the formula: (peak systolic velocity - end diastolic velocity)/peak systolic velocity).
次要结局
- change in renal medullary oxygen tension(At inclusion (in supine position), two hours after prone positioning, 30-minutes after the abdomen suspension maneuver)
- Persisting effect of IAP increase in prone position when patients are back in supine position on urinary PO2(Two hours after patients are back in supine position)
- ventilatory mechanics: transpulmonary pressure(At inclusion (in supine position), two hours after prone positioning, 30-minutes after the abdomen suspension maneuver)
- ventilatory mechanics: driving pressure(At inclusion (in supine position), two hours after prone positioning, 30-minutes after the abdomen suspension maneuver)
- ventilatory mechanics: elastance(At inclusion (in supine position), two hours after prone positioning, 30-minutes after the abdomen suspension maneuver)
- haematosis(At inclusion (in supine position), two hours after prone positioning, 30-minutes after the abdomen suspension maneuver)
- Intra abdominal pressure(At inclusion (in supine position), two hours after prone positioning, 30-minutes after the abdomen suspension maneuver and two hours after patients are back in supine position)
- Persisting effect of IAP increase in prone position when patients are back in supine position on renal resistive index(Two hours after patients are back in supine position)
- Persisting effect of IAP increase in prone position when patients are back in supine position on ventilatory mechanics: transpulmonary pressure(Two hours after patients are back in supine position)
- Persisting effect of IAP increase in prone position when patients are back in supine position on ventilatory mechanics: driving pressure(Two hours after patients are back in supine position)
- Persisting effect of IAP increase in prone position when patients are back in supine position on ventilatory mechanics: elastance(Two hours after patients are back in supine position)
- Persisting effect of IAP increase in prone position when patients are back in supine position on haematosis(Two hours after patients are back in supine position)
- Acute kidney injury(within 48 hours following prone position)
