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- W2608802145 abstract "BACKGROUND Levetiracetam is an antiepileptic drug frequently used in critically ill patients. Levetiracetam is primarily eliminated as a parent compound via glomerular filtration and requires dose adjustment in renal insufficiency, but the literature on patients receiving continuous veno-venous hemofiltration (CVVH) is scant. CASE REPORT We report the levetiracetam pharmacokinetic profile of a patient being treated with levetiracetam 1000 mg intravenously every 12 h who required continuous veno-venous hemofiltration (CVVH). The patient underwent CVVH utilizing a high-flux polyethersulfone membrane filter. The blood flow rate was 250 ml/min, and the predilution replacement therapy fluid flow rate was 2000 ml/h. After achieving presumed steady-state on levetiracetam 1000 mg q12h, serial plasma samples (pre- and post-filter) and effluent samples were drawn at 2, 4, 6, 8, and 10 h. Levetiracetam concentrations were determined utilizing LC-MS/MS. The levetiracetam maximum concentration (Cmax), minimum concentration (Cmin), half-life, area under the concentration-time curve (AUC0-12), clearance (CL), and volume of distribution (Vd) were 30.7 µg/ml, 16.1 µg/ml, 12.9 h, 272 mg·hr/L, 3.68 L/h, and 0.73 L/kg, respectively. The sieving coefficient was 1.03±0.08. CVVH represented 61.3% of the total levetiracetam clearance. The patient was maintained on CVVH for 24 consecutive days and then transitioned to intermittent hemodialysis and remained seizure-free. CONCLUSIONS CVVH is highly effective in removing levetiracetam from circulating plasma. Due to the effective removal, standard doses of levetiracetam are required to maintain adequate plasma concentrations. Dose reductions utilizing HD or estimated creatinine clearance recommendations will likely lead to subtherapeutic levels, especially if higher CVVH flow rates are used." @default.
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- W2608802145 date "2017-04-27" @default.
- W2608802145 modified "2023-09-25" @default.
- W2608802145 title "Levetiracetam Pharmacokinetics in a Patient with Intracranial Hemorrhage Undergoing Continuous Veno-Venous Hemofiltration" @default.
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- W2608802145 doi "https://doi.org/10.12659/ajcr.902709" @default.
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