Background: Outpatient parenteral antimicrobial therapy (OPAT) is common among patients requiring intravenous antibiotics beyond hospitalization. However, OPAT is associated with catheter-related adverse events (AEs), which occur more frequently than drug-related AEs and may lead to care interruptions or harm. We compared AEs related to the most common venous catheters used for OPAT: midline catheters (midlines) [...]