CLINICAL BACKGROUND
 
 
 
 
Current Approaches
 
There are two generally accepted methods to estimate or measure CVP:
 
Bedside Assessment – The current noninvasive approach to measuring CVP involves visually identifying jugular vein pulsations on the surface of the neck as a patient is lifted from a supine to upright position. The hydrostatic pressure that corresponds to the height difference between the point of fluctuations and the heart is used as a measure of CVP. This process is physically taxing, time-consuming, and prone to subjective estimation error. Due to these deficiencies, this method is not commonly performed.


Central Venous Catheterization – The most accurate way to measure CVP is by threading a catheter along a major vein until it is within the vicinity of the right atrial compartment. Pressure readings are then collected directly from inside the vein. Although the gold standard for measuring CVP, these procedures carry frequent risks of infection, are time-consuming, and are difficult to perform without hospitalization. As a result, central venous catheters are only used in critical cases where the benefits outweigh the significant risks.

The disadvantages of these two approaches have restricted the measurement of CVP to cases involving the seriously ill. This limited application of CVP measurement in the catheter lab underestimates the importance of this vital physiological parameter in helping physicians diagnose serious conditions among the general patient population. cVein™ solves this problem by combining the safety of the noninvasive approach with the accuracy of catheters into a product that is simple and easy to use.

Read more about the benefits of cVein™ in
Product Highlights.
 
Table: Comparison of Current Approaches
  cVein™ Central Venous Catheterization Bedside Assessment
Noninvasive  
Rapid  
Accurate  
No Advanced Training    
 
 
 
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