Abstract
We compared the effect and necessary amount of preoperative oral rehydration solution (OS-1® [OS1] and Arginaid® water [AW] ) in perioperative management. Study subjects included patients undergoing total hip arthroplasty with spinal anesthesia planned for the afternoon. In Study 1, 40 patients were randomized into 2 groups : OS1 1,000 ml (n=20) and AW 1,000 ml (n=20). In Study 2, 40 patients were randomized into 2 groups : AW 1,000 ml (n=20) and AW 250 ml (n=20). Results of both studies showed no significant difference in ΔFENa (fractional excretion of sodium). We concluded that the two solutions are suitable as preoperative oral rehydration solutions in perioperative management and that both 1,000 ml and 250 ml of AW compensated equally for dehydration. Consequently, drinking 1,000 ml of fluid as dehydration therapy may be unnecessary.
