Document Type : Research articles


1 Lung Transplant Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

2 Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran

3 Clinical Tuberculosis and Epidemiology Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

4 Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.


Background: Infective endocarditis (IE) is a relatively rare disease but with significant rates of morbidity and mortality. Vancomycin and teicoplanin are bacteriostatic glycopeptide antibiotics used for the treatment of methicillin-resistant Staphylococcus aureus (MRSA) infections.    
Objectives: The current study aimed to compare the efficacy and adverse effects of vancomycin and teicoplanin in the treatment of patients with MRSA-IE.
Methods: This parallel, randomized, and controlled trial study was carried out on the efficacy and safety of teicoplanin versus vancomycin in the treatment of MRSA endocarditis within August 2012 and April 2017. The present study recruited adult patients with a definite or possible diagnosis of IE based on the Modified Duke Criteria. Vancomycin was intravenously administered at a dose of 30 mg/kg/day in two doses. Teicoplanin was administered at a loading dose of 6-12 mg/kg every 12 h in four doses and then continued once a day.
Results: Out of 86 patients with suspected IE, 66 patients were randomly assigned to the vancomycin (n=33) and teicoplanin (n=33) groups. The mean age values of the study subjects were 41±11.8 and 39±13.1 years in the vancomycin and teicoplanin groups, respectively. In addition, 27 patients (81.8%) in the vancomycin group met the criteria for microbiological cure, compared to 25 subjects (89.3%) in the teicoplanin group. In this regard, the observed difference was not statistically significant (P=0.41). Overall, the patients in the vancomycin group experienced more adverse events in comparison to those of the teicoplanin group (P=0.04). The rate of acute kidney injury over time, especially in the first week of therapy, was higher in the vancomycin group than that reported for the teicoplanin group (P=0.05).
Conclusion: It was concluded that the administration of vancomycin or teicoplanin does not significantly change the outcome of patients undergoing empirical treatment for MRSA-IE.


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