Antimicrobial Stewardship Flashcards
What is antimicrobial stewardship?
main strategy for preventing antimicrobial resistance
Antimicrobials
Antibiotics
Antivirals
Antiparasitics
Antifungals
antimicrobial drugs only work against one type of organism
Antimicrobial Resistance
When microorganisms change/mutate over time and get to a point where they no longer repond to medicines previously used to treat them.
AMR - Antimicrobial Resistance
Resistance of a microorganism to an antimicrobial drug that was originally effective
How does AMR happen?
1 - Lots of germs, some are drug resistant. 2 - Antibiotics kill pathogenic bacteria and s good bacteria protecting the body from infection. 3 - drug resistant bacteria now allowed to grow and take over. 4- Some bacteria give their drug-resistance to other bacteria causing more issue.
How does AMR spread?
Animals get antibiotics and develop resistant bacteria gut - drug-resistant bacteria on meat spreads to humans if cooked improperly. Fertiliser/water containing animal feces/drug-resistant bacteria used on food crops - remains on crops which then remains in the human gut.
- Drug-resistant bacteria in gut can spread to community/hopsitals/other patients/healthcare providers.
Antibiotics only used to treat infections.
can sp in theit gut can spread it in their communit/hospitals to healthcare providers or patients.
Antibiotics should only be used to treat infections.
Why are there less new antibiotics
Antibiotic pipeline has dried up, under investing in AMR research
Examples of problematic AMR bacteria.
MDR and XDR Mycobacterium tuberculosis. Methicillin resistant Staphylococcus aureus (MRSA) - and vancomycin resistant VRSA. Carbapenem resistant Enterobacteriaceae (CRE).KPC Klebsiella pneumoniae
NDM-1 E. coli. In 2015, mcr-1 gene for colistin resistance discovered on plasmid in E. coli
How is AMR tackled?
Global & National Action Plans, New Treatments & Vaccine, Infection Prevention & Control, Antimicrobial Stewardship, Awareness Raising & Training, One Health approaches, Surveillance
Antimicrobial Stewardship
Responsible use of antimicrobials to preserve future effectiveness. Set of actions to maximise benefits of antimicrobials while reducing AMR, side effects and other adverse events (HCAI development)
Antimicrobial Sterwardship - What are the Risks vs Benefits of using antimicrobials?
Consider if use needed e.g will it speed up recovery or prevent invasive complications? Need to decide based against risks :AMR to patient and population, side effects of antimicrobial drugs including micro biotoxicity
Prescription and dispensing of antimicrobials
Must be in accordance with up-to-date clinical guidelines: correct drug ,correct dose, correct duration (shortest effective course), most appropriate route of administration (e.g. switch from i.v. to oral ASAP)
Antimicrobial Alternatives
self-care :over-the-counter preparations (e.g. antipyretics (drug to reduce fever)). back-up (delayed) prescribing e.g “only use this prescription if symptom X… or if no better after X days…”, other non-pharmaceutical interventions - e.g. draining site of infection
Infection prevention & control
Aims to minimise the number of infections and spread of AMR organisms.
- sanitation & hygiene
- surveillance & epidemiology
- vaccination & other public health measures
How can a patient help with Antimicrobial Stewardship?
always follow the advice of a prescriber
- never seek antimicrobials without prescription & medical advice