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Antimicrobial Stewardship Program (ASP)

Optimization of antibiotic use and prevention of resistance development.

Written by: Saygı Hospital Health Guide Editorial Board
Published:

This content is for general information; please consult your physician for diagnosis and treatment.

References (5)

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What is Antimicrobial Stewardship Program (ASP)?

Antimicrobial stewardship programs (ASP) are coordinated interventions designed to improve and measure the appropriate use of antimicrobial agents by promoting the optimal selection, dosing, route, and duration of therapy. They are essential to combat the global threat of antimicrobial resistance, which the WHO has declared one of the top ten public health threats facing humanity.

Antimicrobial resistance kills an estimated 1.27 million people globally each year and is associated with millions more deaths indirectly. Inappropriate antibiotic use — overuse, underuse, wrong agent, suboptimal dose or duration — accelerates resistance development. ASPs target this problem through systematic, evidence-based interventions implemented by multidisciplinary teams.

Core ASP elements (CDC Core Elements) include leadership commitment, accountability (a physician leader), drug expertise (a pharmacist leader), action (specific interventions), tracking (monitoring use and resistance), reporting (feedback to providers), and education. Common interventions include prospective audit and feedback, formulary restriction with preauthorization, IV-to-PO conversion, de-escalation, and shorter durations of therapy.

Symptoms

Not applicable — ASP is a system-level intervention, not a patient diagnosis
Indicators of poor stewardship: rising resistance rates, prolonged antibiotic courses, broad empiric use
Patient impact of resistance: treatment failure, more complications, longer stays
C. difficile infection rates as a key marker of antibiotic overuse
MDRO acquisition rates (MRSA, VRE, CRE, ESBL)
Inappropriate antibiotic prescriptions for viral illness or asymptomatic bacteriuria
Excessive empiric broad-spectrum use without de-escalation
Antibiotic-related adverse events (allergic reactions, kidney injury, drug interactions)

Risk Factors

Hospital characteristics favoring resistance: large size, ICU presence, transplant programs
High antibiotic-use intensity at institution baseline
Frequent transfers between long-term care facilities
Limited microbiology laboratory capacity
Lack of dedicated infectious disease and pharmacy expertise
Insufficient electronic health record decision support
High proportion of immunocompromised or critically ill patients
Geographic regions with high baseline resistance

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Not a patient-level concern — ASP is a healthcare system priority
  • Patients should ask: 'Do I really need this antibiotic?'
  • Question prolonged courses beyond evidence-based durations
  • Discuss IV-to-oral switch when appropriate
  • Always finish prescribed course but ask if shorter is possible
  • Avoid demanding antibiotics for viral illness (colds, most bronchitis)
  • Report adverse reactions promptly
  • Engage with hospital ASP feedback in shared decision-making

Treatment Methods

01
Prospective audit and feedback: ID-trained pharmacists/physicians review prescriptions and recommend changes
02
Formulary restriction and preauthorization: control of broad-spectrum agents (carbapenems, daptomycin, linezolid)
03
IV-to-oral conversion: when patient can tolerate oral and bioavailability is adequate
04
De-escalation: narrow spectrum based on culture and clinical improvement
05
Shorter duration protocols: 5 days for community-acquired pneumonia, 7 days for VAP
06
Diagnostic stewardship: avoid unnecessary cultures, urinalysis, viral panels driving inappropriate antibiotics
07
Education programs: clinician training, patient/family information
08
Monitoring: defined daily doses (DDD), days of therapy (DOT), resistance trends, C. difficile rates

Which Department to Visit?

You can visit our Enfeksiyon Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.