The Use of Portal Vein Pulsatility to Differentiate Hypervolemic and Hypovolemic Hyponatremia

Figure 1

Portal vein Doppler exam performed 4hrs after ROSC on day 1. There is a biphasic portal vein profile with flow reversal. Maximum and minimum velocities are 13 and 5.76 cm/s, respectively. Pulse is 85 beats per minute (bpm). Portal vein pulsatility fraction is greater than 100 %. Ascites is present.