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ANALYSIS OF MOTIVATED REQUESTS FOR ANTIBIOTIC MONITORING

European Statement

Clinical Pharmacy Services

Author(s)

Lanzone E. (1), Baldessarelli D. (2), Tinebra A. M. (1), Albini E. M. E. (1), Panarotto A. (1), Rossi C. (1) – (1) SC Farmacia Ospedaliera ASL Novara, (2) Scuola di Specializzazione Farmacia Ospedaliera Novara.

Why was it done?

A comprehensive analysis of systemic antibiotic use in hospitals during the first half of 2024 was conducted, revealing a significant increase in the consumption of WATCH class drugs, specifically carbapenems (ATC J01DH) and fluoroquinolones (J01MA). This prompted the implementation of rigorous monitoring for prescriptions of these drug classes.

What was done?

These antibiotics are key targets of the National Plan Against Antimicrobial Resistance (PNCAR 2022-2025), which mandates a reduction of at least 10% in consumption by 2025 compared to 2022. The initiative aimed to address the rising consumption and enhance antibiotic stewardship.

How was it done?

Data were extracted from the regional IT system, with consumption expressed in Defined Daily Doses (DDD) per 100 patient days. The project monitored the use of systemic antibiotics (ATC J01), focusing on carbapenems and fluoroquinolones. Motivated requests received by the Hospital Pharmacy (FO) were reviewed for therapeutic indications, dosage, treatment duration, and the availability of an antibiogram. All requests were recorded in an Excel sheet for effective data analysis and management.

What has been achieved?

In the first half of 2024, the Hospital Pharmacy received a total of 277 motivated requests for antibiotic prescriptions. Among these, 177 requests were aligned with the objectives of the PNCAR. Specifically, there were 54 requests for fluoroquinolones, including 35 for ciprofloxacin and 19 for levofloxacin. Within this subset, 16 requests included an antibiogram, while 27 were based on empirical data. Additionally, there were 6 requests for surgical prophylaxis, 1 for continuation of therapy, 1 accompanied by a positive urine culture, and 3 that were incorrectly filled out.
The analysis of requests also highlighted a significant number related to carbapenems, with a total of 123 submissions. Of these, 120 were for meropenem, 2 for imipenem in combination with cilastatin, and 1 for ertapenem. Notably, 80 of these requests included an antibiogram, with 74 deemed appropriate based on the established criteria.

What next?

Based on the collected data, modifications to the personalized motivated request form were proposed, introducing stricter criteria for empirical use of these antibiotics. This aims to limit their use to serious and well-defined cases, representing a significant step toward more effective antibiotic therapy and improved clinical outcomes while reducing the risk of resistance. The new form specifies that ciprofloxacin and levofloxacin requests can only be made under certain conditions, and carbapenems are restricted to cases of hemodynamic instability or severe respiratory failure.

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