The authors analyzed the association of L-carnitine treatment with hepatic
survival in 92 patients with severe, symptomatic, valproate-induced hepatot
oxicity. Forty-eight percent of the 42 patients treated with L-carnitine su
rvived, but only 10% of the 50 patients treated solely with aggressive supp
ortive care survived (p < 0.001). Early intervention with IV rather than en
teral L-carnitine was associated with the greatest hepatic survival. Specif
ically, all 10 patients who were diagnosed in <5 days and treated with IV L
-carnitine survived. Most patients had features of chronic illness and most
children appeared to be malnourished.