相关实验视频
Updated: Jul 11, 2025
14:49
Conducting Respiratory Oscillometry in an Outpatient Setting
Published on: April 8, 2022
7.2K
振荡计的诊断潜力:基于人口的方法
Chiara Veneroni1, Christoph Valach2,3,4, Emiel F M Wouters3,4,5
1Department of Electronics, Information and Bioengineering, Polytechnic University of Milan, Milan, Italy.
American journal of respiratory and critical care medicine
|November 16, 2023
概括
通过振荡计检测到的异常呼吸阻力和反应能力在成年人中很常见,并且与呼吸系统问题有关. 这种肺功能测试可以识别问题,即使精神测量结果正常.
科学领域:
- 肺部医学 肺部医学
- 呼吸系统生理学 呼吸系统生理学
- 诊断工具 诊断工具 诊断工具
背景情况:
- 通过振荡计,呼吸阻力 (Rrs) 和反应强度 (Xrs) 在呼吸过程中检测到早期的肺功能障碍.
- 这些参数的内呼吸变化是呼吸系统健康的敏感指标.
研究的目的:
- 在一般成年人群中确定异常振荡计参数的流行率.
- 调查异常振荡度与呼吸系统症状或疾病之间的关联.
主要方法:
- 分析了奥地利LEAD研究中的7560名受试者的振荡计数据.
- 通过问卷评估呼吸道症状和诊断疾病.
- 评估Rrs,Xrs,呼吸内部件,Xrs曲线面积和呼气流量限制.
主要成果:
- 20%的人口表现出异常的振荡计参数.
- 患有呼吸道症状或诊断的人群中,异常更为普遍 (27%对17%).
- 大多数异常的振荡计参数与症状/疾病相关,即使是正常的螺旋计.
结论:
- 异常的振荡度在成年人中很普遍,并且与呼吸系统症状和疾病有关.
- 振荡计显示出检测呼吸系统障碍的前景,补充了螺旋计.
- 这种方法有助于在一般人群中识别亚临床呼吸系统问题.
相关概念视频
01:30Pulse rhythm
807
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
807
01:23Assessment of blood pressure in brachial artery(two-step method)
716
Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
716
01:15Assessment of blood pressure in brachial artery(one-step method)
601
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Prepare for the Procedure:
601
01:23Mechanistic Models: Compartment Models in Individual and Population Analysis
43
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
43
01:24Pulse Oximetry
336
Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
336