Not Logged In     Login  
 Release 21.0, Jan 2008
 
Chapter : ch6. Cardiovascular System Section : Hemodynamic Measurements
  Ratio of Pulse Pressure to Systolic Blood Pressure (Proportional Pulse Pressure)

  Excel Sheet Reference
Copyright (c) 2006-2007, Institute for Algorithmic Medicine, Houston, TX, USA. All rights reserved.

Overview :

The ratio of the pulse pressure to the systolic blood pressure (known as the proportional pulse pressure) can give an indication of the cardiac index.

 

pulse pressure in mm Hg =

= (systolic blood pressure) – (diastolic blood pressure)

 

ratio of pulse pressure to systolic pressure =

= ((systolic blood pressure) – (diastolic blood pressure)) / (systolic blood pressure) =

= 1 – ((diastolic blood pressure) / (systolic blood pressure))

 

Interpretation:

• The normal ratio is around 0.42.

• A value less than 0.25 indicates a low cardiac index and is associated with a poor prognosis in a patient with congestive heart failure.

 

  References:

MKSAP 12 Update: Congestive Heart Failure. American College of Physicians and American Society of Internal Medicine. 2002.

Stevenson LW, Perloff JK. The limited reliability of physical signs for estimating hemodynamics in chronic heart failure. JAMA. 1989; 261: 884-888.

 

 

   Excel Sheet | Reference TOP
     Pubmed Search For
Copy and paste the article title, or authors names into the search box