Vasopressin and fluid retention after liver resection: Comparison with the renin-angiotensin-aldosterone system by surgical extent and liver function

Figure 3 Comparison of plasma aldosterone concentration and arginine vasopressin dynamics by surgical extent. A and B: Changes in plasma aldosterone concentration (PAC) (A) and arginine vasopressin (AVP) (B) in major liver resection (MajLR) (orange line) and minor liver resection (MinLR) (green line) groups. PAC transiently increased immediately after liver resection in both groups, whereas AVP elevation persisted longer in MajLR cases. AVP levels on postoperative day 1 were significantly higher in MajLR than in MinLR. Values are expressed as medians with interquartile ranges. ^aP < 0.05. MinLR: Minor liver resection; MajLR: Major liver resection; PAC: Plasma aldosterone concentration; AVP: Arginine vasopressin; LR: Liver resection; POD: Postoperative day.