使用修改后的芬恩图来评估高海拔登山期间的通风适应:乙胺的影响
Rodion Isakovich1, Valerie C Cates1, Brandon A Pentz1
1Department of Biology, Faculty of Science and Technology, Mount Royal University, Calgary, Alberta, Canada.
Experimental physiology
|May 15, 2024
概括
在高海拔 (HA) 登山期间评估通风适应 (VA) 是至关重要的. 在修改后的Fenn图上使用曲线下面积 (AUC) 的新方法量化VA,显示乙胺改善了适应.
科学领域:
- 身体生理学 身体生理学
- 高度医学 高度医学
- 呼吸系统生理学 呼吸系统生理学
背景情况:
- 高海拔 (HA) 的上升会导致缺氧,增加急性山病风险.
- 呼吸道适应 (VA) 是缓解HA影响的关键.
- 目前的VA评估方法缺乏现场可移植性.
研究的目的:
- 用修改后的Fenn图来描述和量化HA上升过程中的VA.
- 为了评估曲线下面积 (AUC) 的实用性,在这些图表上进行计算.
- 为了比较乙胺治疗和未治疗组中的VA.
主要方法:
- 经过修改的芬恩图,绘制了潮尾二氧化碳与周边氧和的图.
- 计算AUC以表示VA大小.
- 在10天的登至5160m.m.的过程中,在无乙胺 (NAz) 和乙胺 (Az) 组的AUC比较.
主要成果:
- AUC的大小被三切切,以表示低,中等和高VA.
- 与NAz组 (n=46) 相比,Az组 (n=20) 的AUC大小明显较小.
- 较小的AUC表明使用乙醇胺改善了VA.
结论:
- 在修改后的Fenn图上计算AUC是一种可行的方法,用于在HA上升过程中评估徒步旅行者中的VA.
- 这种便携式方法表明,乙胺改善了VA.
- 这种新的分析方法需要在受控实验中进一步验证.
相关概念视频
Acute Respiratory Failure-III
183
Hypercapnic respiratory failure, also known as Type 2 or ventilatory respiratory failure, is a severe condition characterized by the body's inability to effectively remove carbon dioxide (CO2) from the bloodstream. It leads to an arterial CO2 pressure (PaCO2) exceeding 45 mmHg and a blood pH above 7.35. This situation indicates that the body's ventilatory demand, or the ventilation needed to maintain normal PaCO2 levels, surpasses its supply or the maximum gas flow achievable without...
183
Alterations in Respiration II
856
There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes...
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes...
856
Factors Affecting Respiration
5.0K
Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:
5.0K
Hyperpnea and Hyperventilation
1.1K
Hyperventilation refers to a higher-than-normal rate and depth of breathing, often associated with anxiety attacks. This excessive breathing surpasses the body's need to expel CO2, leading to a condition known as hypocapnia - an unusually low level of carbon dioxide in the blood. Hypocapnia can constrict cerebral blood vessels, reducing blood flow to the brain, which may result in dizziness or fainting. Early signs include tingling and muscle spasms in the hands and face, caused by falling...
1.1K
Acute Respiratory Failure-IV
153
Respiratory failure can manifest suddenly or gradually, characterized by a rapid decline in PaO2 and a rapid rise in PaCO2. This situation indicates a severe respiratory problem that may quickly become a life-threatening emergency. One of the early signs of hypoxemic Acute Respiratory Failure (ARF) is a change in mental status due to the brain's sensitivity to oxygen levels and changes in acid-base balance. Symptoms such as restlessness, confusion, and agitation suggest inadequate oxygen...
153
Assessment of Ventilation I: Respiratory Rate
1.1K
Assessment of Ventilation
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
1.1K


