[Infusion pumps and patient safety]

Infusion pumps are important clinical tools where controlled and precise infusions are needed. However, there are a number of potential risks for patient safety in their use: There is a risk of free-flow, i.e. an uncontrolled infusion that may have fatal consequences to the patient; staff is often poorly trained to use these devices, and often the devices themselves do not offer much support in this regard.

Technical and organisational data regarding the use of infusion pumps in the hospitals of the Copenhagen Hospital Corporation (CHC) were collected and analysed. Critical incidents reported to the CHC Incident Database were analysed.

Forty-two different infusion pumps are in use by the five CHC hospitals. There was a total of 919 volumetric infusion pumps, 71% having set-based free-flow protection. Critical incidents were in 40% of cases caused by user-error, the most common being setting an incorrect infusion rate. Discontinuation of the infusion was reported in 27% of incident reports, the causes being disconnection or kinking of the infusion line; this resulted in two cases of awareness under anaesthesia.

Centralising the decision process for procurement and establishing a central library of standardised equipment might well reduce patient safety risks and any under-use of equipment. Usability testing prior to procurement decisions is vital; such testing should be performed by validated methods and not simply by putting the pumps to test in a clinical setting. More knowledge about user-friendly designs of medical equipment is needed.