Patients Referred to St. Michael's Hospital Echocardiography Lab Clinical Trial
Official title:
Technical Correlation of a Noninvasive Estimation of Central Venous Pressure From the Mespere Venus 1000 System and the Inferior Vena Cava From Echocardiography, to Estimate Right Atrial Pressure
The purpose of this clinical study is to investigate if central venous pressure (CVP) measurements from the Mespere Venus 1000 System can be used for right atrial pressure (RAP) when estimating right ventricular systolic pressure (RVSP) in echocardiography labs.
The non-invasive assessment of the pressure on the right side of your heart using an imaging
machine called a Doppler echocardiography machine (also known as an ECHO machine) is a
widely accepted technique and is used as a screening tool for pulmonary hypertension and
heart failure. The pressure on this side of your heart reflects the pressure of the blood in
your veins returning to your heart and the effectiveness of your heart to pump that blood to
your lungs. The accuracy of this technique depends on making an accurate estimate of the
pressure in the upper chamber (atrium) of the right side of your heart, known as your right
atrial pressure (RAP). Right atrium pressure can be measured non-invasively by imaging of
your heart using an echocardiography (aka ECHO) machine. But the technique depends on the
skills of the sonographer (the person who operates the ECHO machine) and can take
considerable time to complete.
In view of this limitation, a non-invasive technique that could be used to make the RAP
measurements may be more reliable and/or faster than the current technique.
Mespere Lifesciences Inc. has developed a new non-invasive device that is expected to allow
for a simple, rapid and reliable measurement of RAP. The device consists of a set of light
sensors on a patch that is placed onto the surface of the patient's right side of the neck.
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Observational Model: Cohort, Time Perspective: Prospective