Drug Resistance, Microbial Clinical Trial
Official title:
Longitudinal Changes in Intestinal Microbiota and Its Association With Acquisition of Antimicrobial Resistance in a Cohort of Stroke Patients
Antimicrobial resistance is regarded as one of the major global public health threats, causing at least 700,000 deaths per year. It has been estimated that if the current problem of antimicrobial resistance is not effectively tackled, it would cause the death of 10 million people worldwide by 2050. Multi-drug resistant pathogen is the single most important contributing factor for inappropriate antibiotics therapy, and this in turn lead to higher mortality in patients with sepsis. The slow pace of development of new classes of antimicrobial agents limits the availability of effective therapy for multi-drug resistant organisms, both currently and in the near future. It is therefore of utmost importance to look for strategies to reduce the spread and burden of antimicrobial resistance. Intestinal microbiota probably played a dominant role in determining the risk of acquisition of multi-drug resistant organisms. For instance, findings from a mouse model showed that Barnesiella species conferred resistance to intestinal colonization by vancomycinresistant Enterococcus. Such findings were subsequently confirmed in human subjects. This is a prospective longitudinal observational study evaluating the correlation between changes in intestinal microbiota and acquisition of antimicrobial resistance in patients hospitalized for stroke. Adult patients admitted to the Medical unit of the Prince of Wales Hospital with a diagnosis of acute stroke will be screened for eligibility and will be invited to participate in this study. Data collected from this study will determine the correlation between antibiotics use and changes in intestinal microbiota in a cohort of hospitalized patients as well as the correlation between intestinal microbiota and acquisition of intestinal colonization or infection caused by resistant pathogens.
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