Abstract
Background With rising trends of multi-drug organism infections and the limited availability of new antimicrobials, management of such cases has become a hassle for the clinician. Ceftazidime-Avibactam (CEF-AVI) is evolving as an effective alternative to polymyxins in the management of Carbapenem-Resistant Organisms (CRO) infections. The Food and Drug Administration (FDA) has approved CEF-AVI in a restricted group of clinical syndromes where the drug could have potential use. Objective The goal of this study was to evaluate the clinical outcome in terms of 14-day all-cause mortality and clinical cure at seven days in patients on CEF-AVI. Methodology A retrospective study was conducted on patients who received CEF-AVI in a period of one year in our hospital. Patients were included in the study if they have received CEF-AVI for more than one day of therapy (DOT) and samples from relevant sites have been sent for culture and sensitivity. Variables and outcomes were collected from the hospital information system and medical records. Results A total of 78 patients were included, 52 (66.7%) were started empirically on CEF-AVI while 26 (33.3%) were on targeted therapy. Out of the 78 patients, 43 patients had positive cultures among which 32 patients had Carbapenem-Resistant Enterobacteriaceae (CRE)/Carbapenem-Resistant Pseudomonas aeruginosa (CRPA) infection. The most common clinical syndrome in which the drug was used was occult sepsis (27/78; 34.6%) followed by primary bacteremia (20/78; 25.6%) and neutropenic sepsis (11/78; 14.1%). The clinical efficacy which was primarily assessed in terms of clinical cure was met for 55 (70.5%) patients. The 14-day mortality for the studies group was found to be 18 (23%). Conclusion The analysis of results shows encouraging clinical cure rates and 14-day mortality rates in a subset of severe infections which has limited treatment options.
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