What is an indication for the placement of a midline catheter?

The placement of a midline catheter is indicated primarily for situations requiring intravenous access for an intermediate time frame, specifically when the treatment involves the administration of medications over a period extending beyond six days. Midline catheters are typically used in cases where peripheral access must be maintained for longer durations, as they provide a stable route for therapeutic delivery without necessitating the insertion of a central venous catheter, which is more invasive.

Midline catheters are designed for use in patients who do not require the use of central lines but still need intravenous therapy for a substantial amount of time, such as prolonged antibiotic therapy or hydration. By contrast, shorter-term therapies, particularly those lasting less than a week, might be effectively managed through peripheral IVs.

In scenarios involving vesicant medications, routine midline catheters are not appropriate, as they can lead to complications such as phlebitis or tissue necrosis. Emergency situations typically call for the immediate establishment of central access, and midline catheters are not suited for such urgent needs. Finally, while midline catheters can be utilized for administering some irritants, the most definitive usage remains associated with therapies needed for more than six days, highlighting their role in managing consequent vascular access care