Transcutaneous Oxygen Monitoring
Transcutaneous Oxygen Monitoring - Related Videos
06:27
Transcutaneous Microcirculatory Imaging in Preterm Neonates
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Cited by 6 •
2015
Microcirculatory imaging (MI) is used to monitor peripheral perfusion in critically ill or preterm neonates. This manuscript and video demonstrates the optimal approach for obtaining high-quality images.
07:18
Transcutaneous Assessment of Renal Function in Conscious Rodents
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Cited by 34 •
2016
Determination of glomerular filtration rate (GFR) is the gold standard to assess overall kidney function. However, traditional procedures to measure this parameter are cumbersome and require a large investment of time. Here we describe a faster and minimally invasive method to determinate GFR transcutaneously.
04:42
Transcutaneous Auricular Vagus Nerve Stimulation on the Human Ear
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2025
Source: Badran, B. W., et al. Laboratory Administration of Transcutaneous Auricular Vagus Nerve Stimulation (taVNS): Technique, Targeting, and Considerations. J. Vis. Exp. (2019)This video demonstrates transcutaneous auricular vagus nerve stimulation (taVNS), a noninvasive method for modulating brain activity. Electrodes are placed on the anterior wall of the outer ear canal and the tragus, targeting the auricular branch of the vagus nerve (ABVN). When stimulated, the resulting nerve impulse...
11:35
Dual-mode Imaging of Cutaneous Tissue Oxygenation and Vascular Function
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Cited by 16 •
2010
A dual-mode imaging system was developed for non-contact assessment of cutaneous tissue oxygenation and vascular function.
08:58
Cerebral Blood Oxygenation Measurement Based on Oxygen-dependent Quenching of Phosphorescence
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Cited by 28 •
2011
We present an experimental procedure for measuring the partial pressure of oxygen (pO2) in cerebral vasculature based on oxygen-dependent quenching of phosphorescence. Animal preparation and imaging procedures were outlined for both large field of view CCD-based imaging of pO2 in rats and 2-photon excitation based imaging of pO2 in mice.
FAQs
Heating the skin sensor is central because it increases local blood flow beneath the measurement site. This enhanced perfusion helps oxygen move from capillaries through the skin toward the sensor, making the measured signal more representative of oxygen availability in the underlying circulation. The resulting value therefore depends on both oxygen diffusion and the local perfusion created by the sensor.
The Clark-type electrode detects oxygen after it has diffused through the skin and converts the oxygen partial pressure into a transcutaneous oxygen value. This electrochemical step gives clinicians a numerical estimate rather than a direct visual indication. The value can then be followed to assess changes in oxygenation, tissue perfusion, or respiratory status over time.
Compared with repeated arterial blood sampling, transcutaneous oxygen monitoring provides a noninvasive way to support continuous assessment. Its purpose is not simply to describe breathing: the reading can also reflect whether oxygen is reaching tissues adequately. That combination makes the method useful when clinicians need ongoing information while avoiding repeated arterial samples.
During a measurement, a heated skin sensor is used to promote local blood flow, while oxygen diffusing from capillaries through the skin reaches the Clark-type electrode. The electrode converts that partial pressure into a transcutaneous oxygen value. Clinicians can then use the value for ongoing assessment instead of relying on repeated arterial blood samples.
Clinicians may select Transcutaneous Oxygen Monitoring when a patient requires continuous assessment of oxygenation without repeated arterial sampling. The method is relevant for newborns and for individuals with respiratory or circulatory problems. In these situations, following a transcutaneous oxygen value can provide ongoing information about respiratory status and the adequacy of oxygen delivery to tissues.
Transcutaneous oxygen monitoring can support evaluation of wound healing and peripheral vascular disease by indicating the adequacy of oxygen delivery to tissues. In these settings, the measurement extends beyond a general respiratory assessment: it helps clinicians examine tissue perfusion and consider whether oxygen availability may support healing. This makes it relevant to circulatory as well as respiratory problems.