Pulmonary Vascular Resistance
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Mean PA Press (mmHg)
PCW Pres (mmHg)
C.O. (L/min)
R e s u l t s
dyne*sec/cm^5
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Pulmonary Vascular Resistance

Pulmonary Vascular Resistance (PVR) refers to the resistance in the pulmonary vasculature against which blood circulation must occur.

PVR is a crucial hemodynamic variable useful in management of several cardiovascular and pulmonary conditions.

Formula used:

Pulmonary Vascular Resistance in (dyne*sec)/cm 5 = 80*(PAP - PCW)/C.O.

Where,

  • PAP = Mean Pulmonary Arterial Pressure
  • PCW = Pulmonary Capillary Wedge Pressure
  • C.O. = Cardiac Output

Measurements via invasive monitoring. Normal values are 155-255 (dyne*sec)/cm5

References:

  • Pulmonary Function Tests. In: Pal GK, Pal P. Textbook of Practical Physiology. 2nd ed. Hyderabad, India: Orient Longman; 2005:154-164.