000002861 001__ 2861 000002861 005__ 20251104123118.0 000002861 0247_ $$2DOI$$a10.6083/M4PG1QG6 000002861 037__ $$aETD 000002861 245__ $$aImpact of model for end stage liver disease sodium (MELD-Na) prioritization for liver transplantation on waitlist survival 000002861 260__ $$bOregon Health and Science University 000002861 269__ $$a2015 000002861 336__ $$aThesis 000002861 502__ $$bM.P.H. 000002861 520__ $$aPatients are prioritized for liver transplantation (LT) by their anticipated 904-day waitlist mortality using the MELD score; however, the MELD underestimates waitlist mortality when hyponatremia is present. A revised MELD that incorporates the added mortality due to hyponatremia, the MELD4Na, was shown to reduce waitlist mortality in hyponatremic patients in a modeling study. In UNOS Region 6, a regional agreement has resulted in the prioritization of cirrhotic patients with hyponatremia for LT using a MELD4Na exception since 2008. This research asks: Does the use of a MELD4Na exception decrease 904-day mortality for hyponatremic patients on the liver transplant waitlist in Region 6? 000002861 540__ $$fCC BY 000002861 542__ $$fIn copyright - single owner 000002861 650__ $$aLiver Transplantation$$028835 000002861 650__ $$aSodium$$026139 000002861 650__ $$aHyponatremia$$020574 000002861 650__ $$aMortality$$022435 000002861 650__ $$aEnd Stage Liver Disease$$039282 000002861 650__ $$aWaiting Lists$$027918 000002861 650__ $$aLiver Cirrhosis$$021584 000002861 691__ $$aSchool of Medicine$$041369 000002861 692__ $$aDepartment of Public Health and Preventive Medicine$$041444 000002861 7001_ $$aJohnson, Sheeva$$uOregon Health and Science University$$041354 000002861 7201_ $$aZaman, Atif$$uOregon Health and Science University$$041354$$7Personal$$eAdvisor$$eMentor 000002861 8564_ $$97d21adbd-70aa-4c42-bb1d-97306c2fc401$$s457487$$uhttps://digitalcollections.ohsu.edu/record/2861/files/3629_etd.pdf$$ePublic$$2128773eebab4c607c38ad883d97da9cc$$31 000002861 905__ $$a/rest/prod/4m/90/dv/70/4m90dv707 000002861 909CO $$ooai:digitalcollections.ohsu.edu:2861$$pstudent-work 000002861 980__ $$aTheses and Dissertations