Cardiac Output
Ever wonder what those numbers really mean???
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10. SVR

SVR (Systemic Vascular Resistance) measures the afterload or resistance applied to the left ventricle. It is an indicator of the left ventricular afterload. It is the force impeding the ejection of blood from the left ventricle.
Normal: 800-1200dynes/sec/cm2

Increase in SVR

Hypoperfusion
Hypovolemia
Hypothermia
Use of Vasopressors/Inotropes
Cardiogenic Shock
Left Ventricular Failure

Decrease SVR

Sepsis
Anaphylaxis Reaction
Hyperthermia
Vasodilators

11. PVR

PVR (Pulmonary Vascular Resistance) measures the resistance or impedance of blood flow from the right ventricle against the pulmonary circulation. It measures resistance across the entire lung field.
Normal: 150-250dynes/sec/cm5

Increase PVR

CHF
Pulmonary Hypertension
Pulmonary Edema
ARDS
Hypoxia
Pulmonary Emboli

12. RVSWI

RVSWI (Right Ventricular Stroke Work Index) measures the amount of work that the right ventricle does during each contraction. It is a means of evaluating the pumping function of the right ventricle.
Normal: 10-15gm/M/M2/beat

Increase in RYSWI

Pulmonary Hypertension
Increased 02 Consumption

Decregse RVSWI

Heart Failure
Acidosis

13. LVSWI

LVSWI (Left Ventricular Stroke Work Index) measures the amount of work the left ventricle does during each contraction. It is a means of evaluating the pumping function of the left ventricle. It is the best measurement of contractility.
Normal: 45-75gm/M/M2/beat

Increase in LVSWI

Increased 02 Consumption
Inotropes

Decrease in LVSWI

MI
Heart Failure