Central pontine myelinolysis and cyclosporine neurotoxicity following liver transplantation

Transplantation
J P FryerC N Ghent

Abstract

In a recent series of 44 liver transplants we identified both extrapontine myelinolysis (EPM) - characteristic of cyclosporine neurotoxicity - and central pontine myelinolysis (CPM) in 5 recipients posttransplant. An additional 2 recipients had EPM only posttransplant. MRIs performed in 4 asymptomatic recipients were normal. Large perioperative shifts in serum sodium, hypomagnesemia, and high cyclosporine levels may play a role in the development of these lesions, although the evidence from this study is inconclusive. In addition to supportive care, dilantin was started in patients who had seizures; aggressive magnesium replacement was initiated for hypomagnesemia, and cyclosporine levels were reduced in all patients. All patients demonstrated a slow steady recovery and all but 2 are at home at the time of writing. CPM may be more prevalent than previously appreciated following liver transplantation, although its prognosis may not be as dismal.

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