Continuous Positive Airway Pressure Effect on Air Trapping, Endurance Time in Chronic Obstructive Pulmonary Disease Patients
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 24
- 试验地点
- 2
- 主要终点
- improved small airways obstruction
研究概览
简要总结
Chronic obstructive pulmonary disease is a disease characterized by small airways inflammation and obstruction. The small airways disease produces hyperinflation (air trapping), which increases with exercise. Continuous positive airways pressure may reduce small airways obstruction and therefore air trapping. Pulmonary function tests including lung volumes at rest and and after exercise will be measured. In addition, exercise endurance time before treatment and after treatment will be measured.
详细描述
Continuous positive airways pressure which prevent small air ways collapse and may also clear secretions. At first stage the optimal pressure for reducing air trapping will be determined. In addition, all patients will undergo a maximal exercise test. A baseline complete pulmonary function test is performed followed by continuous positive air way pressure at the pre-determined pressure. This will be followed by exercise at 60% of maximal obtained previously.
研究设计
- 研究类型
- Interventional
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 45 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •chronic obstructive lung disease stage 2-3 GOLD
- •FRC > 120%
排除标准
- •active ischemic heart disease
- •heart failure
- •peripheral vascular disease
结局指标
主要结局
improved small airways obstruction
时间窗: 2-3 hrs
Following CPAP ventilation measurement be repeated for 3 hrs
次要结局
- improved respiratory symptoms(2-3 hrs)