Thee S, Garcia-Prats A J, McIlleron H M, Wiesner L, Castel S, Norman J, Draper H R, van der Merwe P L, Hesseling A C, Schaaf H S
Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa.
Antimicrob Agents Chemother. 2014 May;58(5):2948-51. doi: 10.1128/AAC.02755-13. Epub 2014 Feb 18.
Limited data on fluoroquinolone pharmacokinetics and cardiac effects in children exist. Among 22 children receiving drug-resistant tuberculosis prophylaxis or treatment, serum concentrations following oral doses of levofloxacin (15 mg/kg of body weight) and ofloxacin (20 mg/kg) were lower than those expected from existing pediatric data, possibly due to differences in the formulations (crushed tablets). Drug exposures were lower than those in adults following standard doses and below the proposed pharmacodynamic targets, likely due to more rapid elimination in children. No QT prolongation was observed.
关于儿童氟喹诺酮类药物的药代动力学和心脏效应的数据有限。在22名接受耐多药结核病预防或治疗的儿童中，口服左氧氟沙星（15毫克/千克体重）和氧氟沙星（20毫克/千克）后的血清浓度低于现有儿科数据预期的值，这可能是由于制剂（压碎的片剂）不同所致。标准剂量后儿童的药物暴露量低于成人，且低于提议的药效学靶点，这可能是因为儿童的药物消除更快。未观察到QT间期延长。
