What is the difference between Mean Arterial Pressure and Mean Systemic Filling Pressure?
Mean Arterial Pressure (MAP) is defined as the average arterial pressure in a single cardiac cycle. Mean Arterial Pressure is a product of Cardiac Output (CO) and Systemic Vesicular Resistance (SVR) summed with Central Venous Pressure (CVP). The range of Mean Arterial Pressure is 70 – 110 mmHg. The MAP must exceed 70 mmHg to achieve cerebral tissue perfusion. Mean Systemic Filling Pressure (MSFP) is defined as the pressure required to fill the right atrium of heart with pressure gradient. This pressure is calculated by neglecting the pulmonary circulation and heart circulation. In other words, MSFP is the pressure when there is no motion of blood in body. The range of MSFP is 7 mmHg.