Preoperative Performance Indicators, Preoxygenation and Oxygen Reserve Relationship
Evaluation of the Relationship Between Preoperative Cardiopulmonary Performance Indicators (Hand Grip Strength and 6-Minute Walk Test) and Preoxygenation and Oxygen Reserve
The goal of this observational study is to evaluate the relationship between preoperative cardiopulmonary performance indicators and preoxygenation efficiency along with oxygen reserve depletion in patients scheduled for elective surgery under general anesthesia. The main questions it aims to answer are:
What is the relationship between Hand Grip Strength (HGS) and the time taken for end-tidal oxygen (EtO_2) to reach 90% during preoxygenation? What is the relationship between the 6-Minute Walk Test (6MWT) distance and the Oxygen Reserve Index (ORI) depletion time during the apnea period?
Participants will be asked to perform the following tasks during their preoperative and intraoperative care:
Complete a 6-Minute Walk Test (6MWT) to determine preoperative functional capacity.
Perform a Hand Grip Strength (HGS) test using a calibrated hand dynamometer to measure muscle strength.
Undergo standardized preoxygenation with 100% oxygen via a tight-fitting face mask in the operating room while end-tidal oxygen (EtO_2) and Oxygen Reserve Index (ORI) levels are continuously monitored.
研究概览
研究类型
注册 (估计的)
联系人和位置
学习联系方式
- 姓名：Betül Güven Aytaç
- 电话号码：+905073578351
- 邮箱：drbguven@hotmail.com
参与标准
资格标准
适合学习的年龄
- 成人
- 年长者
接受健康志愿者
取样方法
研究人群
描述
Inclusion Criteria:
Patients aged >18 years ASA physical status I-III Scheduled for elective surgery under general anesthesia Voluntary written informed consent to participate in the study
Exclusion Criteria:
Severe COPD (Chronic Obstructive Pulmonary Disease) or restrictive lung disease NYHA Class III-IV Heart Failure Neuromuscular diseases Upper extremity pathologies affecting hand function (preventing HGS measurement) Orthopedic or neurological conditions preventing the 6-minute walk test (6MWT) Emergency surgeries
学习计划
研究是如何设计的？
设计细节
队列和干预
团体/队列 |
|---|
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Surgical Patients Evaluated for Cardiopulmonary Performance
|
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 |
|---|---|---|
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Preoxygenation Efficiency (EtO_2 Time)
大体时间：From the initiation of preoxygenation (0 seconds) until the EtO_2 values reach 90% (typically within 3 to 5 minutes before anesthesia induction)
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The time taken for end-tidal oxygen (EtO_2) to reach 90% during preoxygenation.
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From the initiation of preoxygenation (0 seconds) until the EtO_2 values reach 90% (typically within 3 to 5 minutes before anesthesia induction)
|
|
Oxygen Reserve Depletion Time (ORI Time)
大体时间：From the cessation of preoxygenation/initiation of apnea until the ORI drops below 0.55
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The time duration for the Oxygen Reserve Index (ORI) value to drop below 0.55.
|
From the cessation of preoxygenation/initiation of apnea until the ORI drops below 0.55
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Preoperative Functional Capacity (6MWT)
大体时间：Preoperative period
|
Total functional distance walked during the 6-minute walk test
|
Preoperative period
|
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Preoperative Muscle Strength (HGS)
大体时间：Preoperative period
|
Muscle strength measured using a calibrated hand dynamometer (the highest value of three consecutive measurements using the dominant hand)
|
Preoperative period
|
合作者和调查者
研究记录日期
研究主要日期
学习开始 (估计的)
初级完成 (估计的)
研究完成 (估计的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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