Thalhammer F, Schenk P, Burgmann H, El Menyawi I, Hollenstein U M, Rosenkranz A R, Sunder-Plassmann G, Breyer S, Ratheiser K
Department of Internal Medicine I, Division of Infectious Diseases, University of Vienna, A-1090 Vienna, Austria.
Antimicrob Agents Chemother. 1998 Sep;42(9):2417-20. doi: 10.1128/AAC.42.9.2417.
The pharmacokinetic properties of meropenem were investigated in nine critically ill patients treated by continuous venovenous hemofiltration (CVVH). All patients received one dose of 1 g of meropenem intravenously. High-flux polysulfone membranes were used as dialyzers. Meropenem levels were measured in plasma and ultrafiltrate by high-performance liquid chromatography. The total body clearance and elimination half-life were 143.7 +/- 18.6 ml/min and 2.46 +/- 0.41 h, respectively. The post- to prehemofiltration ratio of meropenem was 0.24 +/- 0.06. Peak plasma drug concentrations measured 60 min postinfusion were 28.1 +/- 2.7 microgram/ml, and trough levels after 6 h of CVVH were 6.6 +/- 1.5 microgram/ml. The calculated total daily meropenem requirement in these patients with acute renal failure and undergoing CVVH was 2,482 +/- 321 mg. Based on these data, we conclude that patients with severe infections who are undergoing CVVH can be treated effectively with 1 g of meropenem every 8 h.
在9例接受持续静静脉血液滤过(CVVH)治疗的重症患者中研究了美罗培南的药代动力学特性。所有患者均静脉注射1 g美罗培南。使用高通量聚砜膜作为透析器。通过高效液相色谱法测定血浆和超滤液中的美罗培南水平。总体清除率和消除半衰期分别为143.7±18.6 ml/min和2.46±0.41 h。美罗培南血液滤过后与滤过前的比率为0.24±0.06。输注后60分钟测得的血浆药物峰值浓度为28.1±2.7微克/毫升,CVVH 6小时后的谷浓度为6.6±1.5微克/毫升。这些急性肾衰竭且接受CVVH治疗的患者美罗培南的每日总需求量计算为2482±321 mg。基于这些数据,我们得出结论,正在接受CVVH治疗的重症感染患者每8小时使用1 g美罗培南可得到有效治疗。