Table 2. Aortic-to-radial Artery Pressure Gradient before and after Cardiopulmonary Bypass

Values are mean ± SD. All pressures shown in mmHg. “60 cm” shows that the pressure transducer is approximately in the aorta, and “0 cm” shows that it is in the radial artery; accordingly, “60–0 cm” means the aortic-to-radial artery pressure difference.

CPB = cardiopulmonary bypass; ΔDAP = difference in diastolic arterial blood pressure; Group A = positive–pressure gradient group; Group B = negative–pressure gradient group; ΔMAP = difference in mean arterial blood pressure; ΔSAP = difference in systolic arterial blood pressure.