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Mechanical Power During Pressure Controlled Versus Volume-Controlled Ventilation in Acute Respiratory Failure (MP-PCV-VCV)

2026年9月18日 更新者：Sahar Ahmed、Assiut University

Mechanical Power During Pressure-Controlled Versus Volume Controlled Mechanical Ventilation in Patients With Acute Respiratory Failure

This prospective observational cohort study aims to compare mechanical power between pressure-controlled ventilation (PCV) and volume-controlled ventilation (VCV) in critically ill adult patients receiving invasive mechanical ventilation. Mechanical power will be assessed at different time points during the first 24 hours after intubation, with the primary comparison performed at 24 hours. The study will also evaluate the association between mechanical power and clinical outcomes, including ICU mortality, hospital mortality, successful weaning, duration of mechanical ventilation, and length of ICU and hospital stay.

研究概览

地位

尚未招聘

条件

详细说明

Mechanical ventilation is a life-saving intervention for critically ill patients with acute respiratory failure. However, mechanical ventilation can also contribute to ventilator-induced lung injury when excessive energy is delivered to the respiratory system. Mechanical power, which represents the energy transferred from the ventilator to the respiratory system per unit of time, has emerged as a potentially important parameter for assessing the intensity of mechanical ventilation.

The mode of ventilation may influence mechanical power through changes in airway pressure, tidal volume, respiratory rate, and inspiratory flow. Pressure-controlled ventilation (PCV) and volume-controlled ventilation (VCV) are commonly used modes of invasive mechanical ventilation, but their effects on mechanical power in critically ill patients may differ.

Therefore, this prospective observational cohort study aims to compare mechanical power between PCV and VCV in critically ill adult patients receiving invasive mechanical ventilation and to evaluate the relationship between mechanical power and relevant clinical outcomes.

研究类型

观察性的

注册 (估计的)

186

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习联系方式

  • 姓名：Sahar Ahmed Okily, Master degree of chest disease
  • 电话号码：01094504484 0201094504484
  • 邮箱：sara3hmed2012@gmail.com

研究联系人备份

学习地点

  • 埃及
      • Asyut、埃及
        • Assuit university

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 及以上 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

取样方法

非概率样本

研究人群

Adult patients aged >18 years with acute respiratory failure requiring invasive mechanical ventilation and admitted to the Respiratory Intensive Care Unit at Assiut University Hospitals will be enrolled. Eligible patients receiving either pressure-controlled ventilation (PCV) or volume-controlled ventilation (VCV) will be prospectively followed during their ICU and hospital stay.

描述

Inclusion Criteria:

  • Adult patients aged >18 years.
  • Patients with acute respiratory failure who are receiving invasive mechanical ventilation.

Exclusion Criteria:

  • Patients whose condition requires shifting between VCV and PCV after enrollment.
  • Patients with neurological, neuromuscular, or muscular disorders.
  • Neurological disorders, e.g., stroke, multiple sclerosis, Parkinsonism, and Guillain-Barré syndrome.
  • Neuromuscular junction disorders, e.g., myasthenia gravis.
  • Muscular disorders, e.g., polymyositis and Duchenne muscular dystrophy.
  • Chest wall abnormalities, e.g., kyphoscoliosis, scoliosis, and pectus excavatum.
  • Tracheostomized patients.
  • Patients with raised intra-abdominal pressure (IAP ≥12 mmHg), as estimated by transvesical manometry e.g., massive ascites, bowel obstruction, and postoperative abdominal surgery.
  • Patients with documented chronic type 2 respiratory failure, characterized by an elevated partial pressure of carbon dioxide (PaCO₂ >45 mmHg), low partial pressure of oxygen (PaO₂), and chronically elevated bicarbonate (HCO₃-) reflecting renal compensation.

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 观测模型：COHORT
  • 时间观点：PROSPECTIVE

队列和干预

团体/队列
93 patients in Pressure controlled ventilation

93 patients in Volume controlled ventilation
93 patients in PCV

93 patients in Volume controlled ventilation

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
Mechanical power
大体时间：24 hours after intubation

Mechanical power will be measured and compared between pressure-controlled ventilation (PCV) and volume-controlled ventilation (VCV) at 24 hours after intubation.
24 hours after intubation

次要结果测量

结果测量
措施说明
大体时间
mechanical power and ICU mortality, hospital mortality, time to death.
大体时间：From hospital admission until 30 days after hospital admission.

Correlation between mechanical power and ICU mortality, hospital mortality, time to death .

  • ICU mortality documented as binary (yes/no) outcome indicating death occurring exclusively during ICU admission.
  • Hospital mortality: documented as binary (yes/no) outcome indicating death occurring during hospitalization, regardless of the location of care at time of death.
  • Time-to-death: documented in days from date of ICU admission till date of event (death).
From hospital admission until 30 days after hospital admission.
Mechanical power over time
大体时间：At 1, 6, 12, and 24 hours after initiation of invasive mechanical ventilation.

Changes in mechanical power over time following initiation of invasive mechanical ventilation.
At 1, 6, 12, and 24 hours after initiation of invasive mechanical ventilation.
Successful weaning from mechanical ventilation
大体时间：From intubation until successful weaning( successful extubation without need for ventilatory support within the following 48 hours)

Correlation between Mechanical power and successful weaning from mechanical ventilation .Successful weaning is defined as successful extubation without the need for re-intubation or noninvasive ventilation (NIV) within the following 48 hours.
From intubation until successful weaning( successful extubation without need for ventilatory support within the following 48 hours)

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Assiut University

调查人员

  • 研究主任：Olfat Mostafa El shinawy, Professor、Assiut University, Faculty of Medicine, Chest Diseases Department, Assiut, Egypt
  • 研究主任：Sara Mohamed Hashem, Lecteurer、Assiut University, Faculty of Medicine, Chest Diseases Department, Assiut, Egypt

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (估计的)

2026年10月30日

初级完成 (估计的)

2028年10月30日

研究完成 (估计的)

2029年10月30日

研究注册日期

首次提交

2026年9月13日

首先提交符合 QC 标准的

2026年9月18日

首次发布 (实际的)

2026年9月22日

研究记录更新

最后更新发布 (实际的)

2026年9月22日

上次提交的符合 QC 标准的更新

2026年9月18日

最后验证

2026年9月1日

更多信息

与本研究相关的术语

其他研究编号

  • AUN-CH-MP-001

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

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