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Pulmonary Capillary Wedge Pressure
Calcs>Pressure>PCWP>1
Calculator
LVIEDT: msec
 
PCWP by DTE: mmHg
PCWP by LVIEDT: mmHg
   
LVIA msec
PVIA msec
 
PCWP by PVA & LVA mmHg

PCWP



 
How to calculate a PCWP by LVIEDT.
 

Step 1: Obtain a PWD of the LVI  Calculate the Deceleration Time (DT) which is the time from the peak velocity of the E wave to the time where the deceleration slope of the E wave crosses the zero velocity scale.  If the DT is < 150 msec then the PCWP is > 10.  If the DT is > 150 msec then the PCWP is < 10 mmHg.  A high PCWP will rapidly passively fill the left ventricle causing a sharp deceleration slope which will decrease the DT.

 
How to calculate a PCWP by PVIA and LVIA.
 
Step 1: Obtain a PWD of the LVI  The difference of the PVIA wave duration and the LVIA wave duration will be reflected by the PCWP.  A high LVEDP is reflected by a high LAP.  A high LAP will, during atrial contraction, result in an increase in back flow in the pulmonary veins which increases the duration of the PVIA wave.  A long PVIA wave, when compared to a LVIA wave duration results in a high PCWP calculation.
 

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