Anesthetic Fluid Management of Patients With Hyponatremia Undergoing Living Donor Liver Transplantation.

Objective: The objective of this study is to evaluate the changes in serum sodium levels in adult recipients with and without hyponatremia undergoing living donor liver transplantation (LDLT) without using hypertonic solution.

Methods: Patients were divided into 2 groups according to serum sodium level higher (GI) or lower (GII) than 130 mEq/L. The changes of serum sodium levels during an LDLT procedure and total sodium loads were compared between groups by using the Mann-Whitney U test, while the changes in the same group were paired by using the Student t test. A P value <.005 was considered significant.

Results: The total sodium load for GI (n = 438) and GII (n = 28) were 2737 ± 2159 mEq and 4017 ± 2830 mEq, respectively. Although GI received a significantly lower sodium load than GII, the serum sodium levels during the procedure were always within a normal range and higher than GII at all the measured time points; however, the changes of serum sodium level in GI from one point to the next measured point in the same group were unremarkable, while that of GII increased significantly between the 2 measured time points during the procedure. The mean total increase of serum sodium in GII was 5.57 ± 4.9 mEq/L in 14 hours of the LDLT procedure. None of the patients developed central pontine myelinosis (CPM) postoperatively.

Conclusion: Patients with hyponatremia can be managed safely without using a hypertonic solution during liver transplantation. The mean increase of serum sodium of GII was of 5.57 ± 4.9 mEq/L, which was still within the acceptable and safe level. No postoperative CPM was observed in our GII patients.