Overprescription of antibiotics in patients with community-acquired pneumonia in the intensive care unit

Purpose: We aimed to assess factors associated with therapy failure in patients with community-acquired pneumonia in the intensive care unit (ICU). Methods: Electronic charts of patients with International Classification of Diseases, Ninth Revision, codes of pneumonia who were admitted to the ICU at a tertiary academic medical center in Southern Arizona were reviewed. Results: Antipseudomonal coverage and anti-methicillin-resistant Staphylococcus aureus (MRSA) coverage were often prescribed (58.4% and 54.1%, respectively). Antipseudomonal coverage was rarely necessary as pseudomonal pneumonia was found in only one case (0.9%). Antipseudomonal and anti-MRSA coverage was not associated with improved outcomes. Conclusion: Overprescription of antibiotics in this population remains a significant problem. More work is needed to further limit unnecessary antibiotic use.