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临床试验/NCT05089487
NCT05089487已完成不适用

The Impact of Hypoxia on Patients With Precapillary Pulmonary Hypertension and Treatment of Adverse Effects

University of Zurich2 个研究点 分布在 1 个国家目标入组 28 人开始时间: 2021年10月18日最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
28
试验地点
2
主要终点
Proportion of patients free of severe hypoxemia

研究概览

简要总结

The impact of hypoxia at 2500m of high altitude on sleep in patients with precapillary pulmonary hypertension

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Crossover
主要目的
Screening
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

入选标准

  • Informed consent as documented by signature (Appendix Informed Consent Form)
  • PH class I (PAH) or IV (CTEPH) diagnosed according to guidelines: mean pulmonary artery pressure >20 mmHg, pulmonary vascular resistance ≥3 wood units, pulmonary arterial wedge pressure ≤15 mmHg during baseline measures at the diagnostic right-heart catheterization

排除标准

  • resting partial pressure of oxygen <8 kilopascal at Zurich at 490 m low altitude
  • exposure to an altitude >1000 m for ≥3 nights during the last 2 weeks before the study
  • inability to follow the procedures of the study
  • other clinically significant concomitant end-stage disease (e.g., renal failure, hepatic dysfunction)

结局指标

主要结局

Proportion of patients free of severe hypoxemia

时间窗: 30 hours

Proportion of patients free of severe hypoxemia (defined as oxygenation (SpO2)\<80% for \>30 min) without oxygen therapy during nocturnal rest at 2500 m vs. 490 m

次要结局

  • Oxygen desaturation index(30 hours)
  • Cerebral tissue deoxygenation(30 hours)
  • Cerebral tissue oxygen saturation during sleep without oxygen(30 hours)
  • Nocturnal oxygenation(30 hours)
  • Periodic breathing(30 hours)
  • Nocturnal transcutaneous carbon dioxide tension(30 hours)
  • Cerebral tissue oxygen saturation awake(30 hours)
  • Cerebral tissue oxygen saturation during sleep with oxygen(30 hours)
  • Cerebral oxygen desaturation index with oxygen(30 hours)
  • Time spent awake during the night(30 hours)
  • Visual Analogue Scale(30 hours)
  • Cerebral oxygen desaturation index without oxygen(30 hours)
  • Cerebral tissue oxygen saturation between different sleep stages(30 hours)

研究者

申办方类型
Other
责任方
Sponsor

研究点 (2)

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