NCT06502405尚未招募不适用
Research on the Application of Electrical Impedance Tomography in Bronchial Challenge Testing
wang kaifei0 个研究点目标入组 100 人开始时间: 2024年8月1日最近更新:
适应症
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 发起方
- 入组人数
- 100
- 主要终点
- global inhomogeneity index （GI）
研究概览
简要总结
The purpose of this study was to examine whether electrical impedance tomography (EIT) was capable of identifying the deteriorated lung function on a regional level during bronchial challenge testing and whether EIT may provide additional information during bronchial challenge testing and identify spatial and temporal heterogeneity of regional lung function.
详细描述
The content of this study includes:
- Can EIT identify the uneven ventilation caused by airway contraction in patients during bronchial provocation tests.
- Can EIT monitor airway contraction in patients before Spirometer examination after inhaling activators.
- Can EIT observe uneven ventilation caused by airway contraction through tidal breathing after the patient inhales activator.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- •patients with a pre-bronchodilator FEV1≤60% predicted.
- •Contraindications for bronchial challenge testing.
- •Pregnant or lactating women.
- •After pacemaker surgery.
结局指标
主要结局
global inhomogeneity index （GI）
时间窗: 1day
Measured by EIT, used to describe the overall degree of spatial heterogeneity of ventilation.
forced expiratory volume in 1s (FEV1)
时间窗: 1day
The forced expiratory volume in 1s measured during pulmonary function tests.
次要结局
未报告次要终点
研究者
wang kaifei
Deputy chief physician
Chinese PLA General Hospital
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