Objective: To systematically evaluate the efficacy and safety of ceftazidime/avibactam(CAZ/AVI) plus metronidazolein the treatment of complicated intra-abdominal infection(cIAI). Method: CNKI,Wanfang Data Knowledge Platform,Cochrane Library,PubMed,Web of Science,Embase and major conference proceedings were searched by computer to collect all randomized controlled trials(RCTs) of CAZ/AVI plus metronidazole treatment for cIAI from the establishment of the databases to February 2023. Data were extracted from the studies that met the inclusion criteria,and the risk of bias was assessed. The results were analyzed using RevMan 5.3 software. Results: A total of 6 RCTs were included,involving 2 412 patients. The intervention measures of the experimental group were CAZ/AVI plus metronidazole and the control group was carbapenems. The results of the Meta-analysis showed that the clinical cure rates(OR=0.77,95%CI 0.58-1.02,P=0.07) and microbial clearance rate(OR=0.72,95%CI 0.50-1.04,P=0.08) of the two groups were similar,with no statistical significance,and the results of adult subgroup and child subgroup were consistent; In terms of safety,the overall incidence of adverse drug events(OR=1.17,95%CI 0.99-1.37,P=0.06) and mortality(OR=1.57,95%CI 0.77-3.18,P=0.21) were similar between the two groups,with no significant difference. However,subgroup analysis showed that patients in the experimental group were more prone to gastrointestinal reactions such as vomiting than those in the control group. Funnel plots of clinical cure rates were drawn for the included studies,and the results showed that the distribution was basically symmetrical without publication bias,and the results were credible. Conclusions: CAZ/AVI plus metronidazole has similar efficacy and safety to carbapenems in the treatment of cIAI and can be used as an alternative option for patients with limited drug choice or carbapenem-resistant bacteria infection. |
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