Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

2.0K
Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
2.0K
Special considerations while measuring oxygen saturation01:19

Special considerations while measuring oxygen saturation

1.1K
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
1.1K
Oxygen Transport in the Blood01:27

Oxygen Transport in the Blood

8.2K
Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
8.2K
Respiration and Gaseous Exchange01:20

Respiration and Gaseous Exchange

4.2K
The intricate interplay between the cardiovascular and respiratory systems is crucial for efficiently transporting respiratory gases throughout the body. Let us explore the cardiovascular system's multifaceted functions, emphasizing its pivotal role in gas exchange.
Respiration involves the exchange of gases, especially oxygen (O2) and carbon dioxide (CO2), between the alveoli and body cells, a process facilitated by blood circulation. As a result, the cardiovascular system, which involves...
4.2K
Oxygen Delivering System I: Nasal Cannula and Face Mask01:26

Oxygen Delivering System I: Nasal Cannula and Face Mask

2.3K
The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
2.3K
Gas Exchange and Transport01:20

Gas Exchange and Transport

79.4K
Gas exchange, the intake of molecular oxygen (O2) from the environment and the outflow of carbon dioxide (CO2) into the environment, is necessary for cellular function. Gas exchange during respiration occurs largely via the movement of gas molecules along pressure gradients. Gas travels from areas of higher partial pressure to areas of lower partial pressure. In mammals, gas exchange occurs in the alveoli of the lungs, which are adjacent to capillaries and share a membrane with them.
79.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Distinct diurnal temperature rhythm patterns in critical illness myopathy: secondary analysis of two prospective trials.

Annals of intensive care·2025
Same author

Readiness for climate change mitigation among anesthesiologists : A before and after study at three German university hospitals.

Die Anaesthesiologie·2025
Same author

Coherent control of rare earth 4f shell wavefunctions in the quantum spin liquid Tb<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub>.

Nature communications·2024
Same author

[Intraoperative clinical application of hemodynamic monitoring in noncardiac surgery patients].

Die Anaesthesiologie·2024
Same author

Dynamic parameters of fluid responsiveness in the operating room : An analysis of intraoperative ventilation framework conditions.

Die Anaesthesiologie·2024
Same author

Reduced preoperative serum choline esterase levels and fecal peritoneal contamination as potential predictors for the leakage of intestinal sutures after source control in secondary peritonitis.

World journal of emergency surgery : WJES·2024

Related Experiment Video

Updated: Mar 24, 2026

Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care
14:28

Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care

Published on: May 10, 2024

2.4K

[Venous saturation : Between oxygen delivery and consumption].

V Mezger1, F Balzer2, M Habicher2

  • 1Klinik für Anästhesiologie mit Schwerpunkt operative Intensivmedizin, Campus Charité Mitte und Campus Virchow Klinikum, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Deutschland. viktor.mezger@charite.de.

Medizinische Klinik, Intensivmedizin Und Notfallmedizin
|March 3, 2016
PubMed
Summary

Central venous saturation (ScvO2) is a less invasive measure of oxygen balance than mixed venous saturation (SvO2) and is valuable in intensive care. Both low and high ScvO2 levels can indicate poor patient outcomes.

Keywords:
Central venous-arterial differenceCentral-venous saturationGoal-directed therapyMixed-venous saturationSepsis

More Related Videos

Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy
09:04

Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy

Published on: February 20, 2018

13.0K
Magnetic Resonance Imaging Quantification of Pulmonary Perfusion using Calibrated Arterial Spin Labeling
12:29

Magnetic Resonance Imaging Quantification of Pulmonary Perfusion using Calibrated Arterial Spin Labeling

Published on: May 30, 2011

14.3K

Related Experiment Videos

Last Updated: Mar 24, 2026

Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care
14:28

Non-Invasive Monitoring of Microvascular Oxygenation and Reactive Hyperemia using Hybrid, Near-Infrared Diffuse Optical Spectroscopy for Critical Care

Published on: May 10, 2024

2.4K
Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy
09:04

Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy

Published on: February 20, 2018

13.0K
Magnetic Resonance Imaging Quantification of Pulmonary Perfusion using Calibrated Arterial Spin Labeling
12:29

Magnetic Resonance Imaging Quantification of Pulmonary Perfusion using Calibrated Arterial Spin Labeling

Published on: May 30, 2011

14.3K

Area of Science:

  • Critical Care Medicine
  • Physiology
  • Anesthesiology

Background:

  • Venous saturation assesses oxygen delivery and consumption balance, crucial in intensive and perioperative care.
  • Mixed venous saturation (SvO2) is reliable but invasive; central venous saturation (ScvO2) is a less invasive alternative.
  • ScvO2 is widely used despite not reflecting splanchnic perfusion, proving reliable for goal-directed therapy in shock.

Purpose of the Study:

  • To review the significance of venous saturation monitoring in critical care.
  • To discuss the clinical utility and limitations of central venous saturation (ScvO2).
  • To highlight the prognostic value of ScvO2 and the emerging role of the central venous-arterial pCO2 difference (dCO2).

Main Methods:

  • Literature review and synthesis of existing studies on venous saturation monitoring.
  • Analysis of the clinical application of ScvO2 in intensive care settings.
  • Examination of prognostic implications of venous saturation and dCO2.

Main Results:

  • Central venous saturation (ScvO2) is a reliable indicator for goal-directed therapy, particularly in septic or hemorrhagic shock.
  • Both decreased and elevated ScvO2 levels are associated with adverse patient outcomes, indicating a narrow therapeutic window.
  • Elevated central venous-arterial pCO2 difference (dCO2) correlates with poor outcomes in specific patient groups, though further research is needed.

Conclusions:

  • Central venous saturation (ScvO2) is a valuable, less invasive tool for assessing oxygen balance and prognosis in critical care.
  • Understanding the prognostic significance of both low and high ScvO2 is vital for patient management.
  • The central venous-arterial pCO2 difference (dCO2) shows promise as a monitoring parameter, warranting further investigation for routine clinical use.