Decoding Antimicrobial Prescriptions: Are Second-Line Drugs Overused?
"A deep dive into long-term care facilities reveals a potential overuse of second-line antimicrobials, highlighting the need for better education and prescription practices."
Antimicrobial resistance is a growing global health threat, and one of the key battlegrounds in this fight is within long-term care facilities (LTCFs). These facilities, which house a significant portion of the elderly and vulnerable populations, are often hotspots for infection and, consequently, antimicrobial use. While antimicrobials are essential for treating infections, their overuse and misuse can lead to the development of resistant bacteria, making infections harder to treat.
A recent study published in the Journal of the American Medical Directors Association (JAMDA) sheds light on antimicrobial prescribing practices in Irish LTCFs. The research, titled 'Improving Antimicrobial Prescribing: A Multinomial Model Identifying Factors Associated With First- and Second-Line Prescribing,' reveals a concerning trend: a significant proportion of antimicrobials prescribed are second-line agents, which should ideally be reserved for cases where first-line options have failed.
This article will delve into the findings of the JAMDA study, exploring the factors that contribute to the overuse of second-line antimicrobials in LTCFs. We will also discuss the implications of these findings and highlight potential strategies for improving antimicrobial prescribing practices, ultimately aiming to protect both individual residents and the broader community from the threat of antimicrobial resistance.
Why Are Second-Line Antimicrobials So Common in Long-Term Care?

The JAMDA study, led by Meera Tandan and colleagues, analyzed data from a point prevalence survey conducted in 77 LTCFs in Ireland. The survey included detailed information on resident characteristics, antimicrobial prescriptions, and facility-level factors. The researchers categorized antimicrobials as either first-line or second-line based on Irish national prescribing guidelines, which prioritize narrow-spectrum agents as first-line options for common infections.
- Interfacility Variation: The study found significant variation in prescribing practices between different LTCFs, suggesting that local factors play a crucial role.
- Prescriber Education: LTCFs that provided education and training on antimicrobial prescribing were significantly less likely to use second-line antimicrobials.
- Gender Differences: Male residents were less likely to be prescribed first-line antimicrobials compared to female residents.
- Catheter Use: Residents with urinary catheters were more likely to receive first-line antimicrobials.
Taking Action: Promoting Antimicrobial Stewardship in Long-Term Care
The JAMDA study provides valuable insights into antimicrobial prescribing practices in LTCFs and highlights the need for targeted interventions to promote antimicrobial stewardship. By focusing on education, training, and evidence-based guidelines, we can empower healthcare professionals to make informed decisions about antimicrobial use, ultimately protecting vulnerable residents and preserving the effectiveness of these life-saving drugs.