NCT03782077已完成不适用
Effect of Deflation of Pneumatic Tourniquet on the Change of Optic Nerve Sheath Diameter in Patients Undergoing Knee Surgery
适应症
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- change of optic nerve sheath diameter
研究概览
简要总结
The purpose of this study is to evaluate the change of the optic nerve sheath diameter after deflation of pneumatic tourniquet.
详细描述
Deflation of pneumatic tourniquet could induces many changes in various organ systems. It has been shown to affect intracranial pressure. Thus, the investigators evaluate the change of optic nerve sheath diameter using ultrasound after deflation of pneumatic tourniquet in patients undergoing knee surgery.
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 79 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •ASA physical status 1-4
- •patients undergoing knee surgery using pneumatic tourniquet
排除标准
- •patients who refuse to participate in this study
- •patients with history of cerebrovascular disease
- •patients who are judged ineligible by the medical staff to participate in the study for other reasons
结局指标
主要结局
change of optic nerve sheath diameter
时间窗: 5 minutes before deflation and at 5-minute intervals for 10 minutes after deflation
difference in optic nerve sheath diameter measured using ultrasound before and after deflation of pneumatic tourniquet
次要结局
未报告次要终点
研究者
Hajung Kim
Clinical instructor
Asan Medical Center
研究点 (1)
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