Title

Extreme hyponatremia as a risk factor for early mortality after liver transplantation in the model for end-stage liver disease-sodium period

Document Type

Conference Proceeding

Publication Date

2019

Publication Title

Am J Transplant

Abstract

Background: Impact of hyponatremia on post-transplant outcomes is not well studied after implementation of MELD-Na based liver allocation. This study assessed post-transplant mortality in liver transplantation (LT) patients with pretransplant hyponatremia, and effects of the new MELD-Na based allocation were investigated. Methods: This was a retrospective study that included 47,872 LT patients between 2010-2017. Source of data was the UNOS registry. Survival analysis was conducted using cox proportional regression. Pre-transplant hyponatremia was categorized as: <120 >(extreme), 120-124 (severe), 125-29 (moderate), or 130-134 (mild) mEq/L. Remainder were normal (135-145 mE/L) or hypernatremia (>145 mEq/L). Multivariate analysis included clinically relevant covariates. To analyze the impact of MELD-Na based allocation, patients were grouped by transplant date before or after 01/10/2016 (pre and post MELD-Na periods). Results: In univariate analysis, extreme hyponatremia was significantly associated with decreased 1-year survival (HR: 2.11; 95% CI: 1.42-3.13; P

Volume

19

Issue

Suppl 1

First Page

69

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