This trial is active, not recruiting.

Conditions sepsis, post cardiac surgery low output syndrome requiring inotropic/vasopressor therapy, cardiogenic shock post myocardial infarction, hypoxemic respiratory failure.
Treatments mespere venous oximeter, co-oximeter
Sponsor Mespere Lifesciences Inc.
Start date October 2014
End date October 2016
Trial size 40 participants
Trial identifier NCT01788956, MLS STP-9100002


The intent of this study is to validate the venous blood oxygenation measurements of the Mespere VA Oximeter compared to the saturations measured by venous blood sampling through an inserted central vein catheter, which is currently the standard of care for measuring SvO2

United States No locations recruiting
Other countries No locations recruiting

Study Design

Observational model cohort
Time perspective prospective
80 subjects (male and female)
mespere venous oximeter
Mespere Venous oximeter provides non-invasive measurement of the oxygenation of the venous blood.

Primary Outcomes

Mespere Venous Oximeter Accuracy Verification Study
time frame: up to 36 hours

Eligibility Criteria

Male or female participants at least 18 years old.

Inclusion Criteria: - Age 18 and older - Patients admitted to the ICU - Patients who have or are scheduled to have an indwelling central venous catheter inserted via the internal jugular vein or subclavian vein as part of their usual care Exclusion Criteria: - Abnormal neck anatomy - Unable to identify jugular vein under ultrasound guidance - Allergic to adhesive tape - Presence of known anatomical shunt or AV dialysis fistula - Known central vein stenosis

Additional Information

Official title Correlation of Venous Oxygen Saturation Measurements by Non-invasive Mespere Venous Oximeter vs Central Venous Oxygen Saturation, Measured by a CO-Oximeter.
Principal investigator Michael Sharpe, MD, FRCPC
Description The conventional bedside pulse oximeter has been a standard in clinical care for non-invasive hemodynamic monitoring and measures arterial blood oxygenation. To date, a non-invasive bedside monitor for measuring mixed venous oxygen saturation (SvO2) has not been developed. The clinical applications of venous oximetry are numerous and include management of severe sepsis and septic shock, trauma and hemorrhagic shock, heart failure and cardiac arrest. The existing method for venous blood oxygenation monitored is either through an invasive fiber optic catheter, or intermittently by blood sampling through a central venous catheter Oximetry. However, SvO2 measurements using fiber optic catheters are very expensive, and all central line insertions include inherent risks. Also, insertion of a central line is in some circumstances not feasible (e.g. discomfort/limited experience in central line insertion, unavailability of specific monitoring systems etc.) resulting in inappropriate therapy usually guided by SvO2. Therefore, a non-invasive monitor to measure SvO2 at the bedside negating the requirement for a central line insertion would be of clinical benefit and allow appropriate therapy of many patients listed above at a time when therapy has the most benefit. The Mespere VA Oximeter is a non-invasive medical device for monitoring of venous blood oxygenation. Continuous measurement of venous oxygenation will be beneficial because it will help the physician better understand local ischemia as well as provide better guidance for the physician to be able to best treat the patient and decrease their burden of illness.
Trial information was received from ClinicalTrials.gov and was last updated in September 2015.
Information provided to ClinicalTrials.gov by Mespere Lifesciences Inc..