抗菌药物对产ESBLs菌抗菌活性
➢ 8% 2
➢ 18% 4
3.0 Q12h
3.0 Q8h
➢ 30% 8 ➢ 17% 16 ➢ 15% 32
➢ 2% 64
➢ 10% 耐药
头孢哌酮/舒巴坦(2:1) PK/PD研究
血 浆 浓 度 ( mg/L)
200
180
CPZ
160
140
SUL
120
100
80
60
肠杆菌科细菌
临床关注的主要-内酰胺酶
•超广谱-内酰胺酶(ESBLs) •高产头孢菌素酶(AmpC酶)
MDR
•极少数菌株产碳青霉烯酶 (碳青霉烯酶KPC)
XDR or PDR
产ESBLs菌株血行感染死亡率显著增加(Meta 分析)
❖ 产ESBLs菌株与不 产ESBLs菌株血行 感染死亡率比较的 Meta分析
包括16个研究 产ESBLs菌株
菌血症死亡率 显著增加
(pooled RR 1.85, 95% CI 1.39–2.47, P < 0.001)
Mortality and delay in effective therapy associated with extended-spectrum blactamase production in Enterobacteriaceae bacteraemia: a systematic review and meta-analysis. Journal of Antimicrobial Chemotherapy (2007) 60, 913–920
❖ Antibiotic-resistant organisms are more commonly associated with inappropriate therapy