Figure 51-13 Systolic blood pressure (BP) after separating from cardiopulmonary bypass and 15 minutes after separating with and without modified ultrafiltration (MUF). Note the significant improvement in systolic BP with the use of MUF. (From Ungerleider RM: Effects of cardiopulmonary bypass and use of modified ultrafiltration. Ann Thorac Surg 65:S35, 1998; reprinted with permission from the Society of Thoracic Surgeons.)