Pavia Charles, Inchiosa Mario A, Wormser Gary P
Division of Infectious Diseases, Department of Medicine, New York Medical College, Valhalla, New York 10595, USA.
Antimicrob Agents Chemother. 2002 Jan;46(1):132-4. doi: 10.1128/AAC.46.1.132-134.2002.
Ceftriaxone is highly effective clinically in patients with Lyme disease. We studied a representative invasive human isolate of Borrelia burgdorferi for which the MBC of ceftriaxone was 0.050 microg/ml. A once-per-day dosage regimen of ceftriaxone (50 mg/kg/dose) administered intramuscularly for 5 days was 100% effective in sterilizing tissue samples of C3H mice infected with this strain of B. burgdorferi, regardless of whether the mice were being treated concomitantly with a corticosteroid. Administration of the same five doses of ceftriaxone at 6-h intervals over just 24 h was also 100% effective. These experiments suggest that shorter courses of antibiotics than those currently recommended should be considered for study in patients with early uncomplicated Lyme disease.
头孢曲松在莱姆病患者的临床治疗中具有高效性。我们研究了一株具有代表性的侵袭性人类伯氏疏螺旋体分离株，其头孢曲松的最低杀菌浓度为0.050微克/毫升。对感染该株伯氏疏螺旋体的C3H小鼠，每天一次肌肉注射头孢曲松（50毫克/千克/剂量），连续注射5天，无论小鼠是否同时接受皮质类固醇治疗，在使组织样本除菌方面均有100%的效果。在仅仅24小时内每隔6小时给予相同的五剂头孢曲松，也有100%的效果。这些实验表明，对于早期无并发症的莱姆病患者，应考虑研究比目前推荐疗程更短的抗生素治疗方案。
