[How complete is the Germany-wide standardised medication list ("Bundeseinheitlicher Medikationsplan")? An analysis at hospital admission.] / Wie vollständig ist der Bundeseinheitliche Medikationsplan? Eine Analyse bei Krankenhausaufnahme.

BACKGROUND: At inpatient admission, the timeliness and completeness of the Germany-wide standardised medication list ("Bundeseinheitlicher Medikationsplan") often seems inappropriate. It is also unclear which characteristics of the lists increase the probability of discrepancies. METHODS: A total of 100 medication lists of elective patients of a surgical clinic were retrospectively evaluated with regard to potential discrepancies compared to the standardised medication reconciliation. The discprepancies were assigned to 7 categories: drug taken is missing on the list, drug on the list is no longer taken, strength or dosage is missing at the list or is incorrect, or the documented dosage form is different. Advice on patient safety, involved drugs and dosage forms were also recorded. Multivariate analyses were used to investigate the influence of the timeliness, number of drugs and issuing medical specialty of the lists on the type and number of discrepancies. RESULTS: Compared to the medication reconciliation, 78 % (78/100) of the lists showed discrepancies. A total of 226 deviations (2.3 ±â€Š0.6 deviations/list) were documented. Most often, a drug was missing from the list (n = 103). Of all recommendations, 64 % (83/177) concerned the perioperative management of anticoagulants (n = 55) and antidiabetics (n = 28), corresponding to 62 % (62/100) of the lists. In the multivariate analysis, only the risk of incorrect information on strength and dosage increased significantly with the age of the lists (p = 0.047) and was more than twice as high when the list was more than one month old. CONCLUSIONS: The timeliness, completeness and aspects of patient safety must be comprehensively validated. Medication lists that are older than 1 month should be checked particularly critically with regard to information on strength and dosage and the plan should be updated accordingly at regular intervals.

Development and evaluation of a computerised clinical decision support system for switching drugs at the interface between primary and tertiary care.

BACKGROUND: Upon admission to a hospital patients' medications are frequently switched to alternative drugs compiled in so called hospital drug formularies. This substitution process is a laborious and error-prone task which should be supported by sophisticated electronic tools. We developed a computerised decision support system and evaluated benefit and potential harm associated with its use. METHODS: Based on a multi-step algorithm we identified drug classes suitable for exchange, defined conversion factors for therapeutic interchange, built a web-based decision support system, and implemented it into the computerised physician order entry of a large university hospital. For evaluation we compared medications manually switched by clinical pharmacists with the results of automated switching by the newly developed computer system and optimised the system in an iterative process. Thereafter the final system was tested in an independent set of prescriptions. RESULTS: After iterative optimisation of the logical framework the tool was able to switch drugs to pharmaceutical equivalents and alternatives; in addition, it contained 21 different drug classes for therapeutic substitution. In this final version it switched 91.6% of 202 documented medication consultations (containing 1,333 drugs) automatically, leaving 8.4% for manual processing by clinical professionals. No incorrect drug switches were found. CONCLUSION: A large majority (>90%) of drug switches performed at the interface between primary and tertiary care can be handled automatically using electronic decision support systems, indicating that medication errors and workload of healthcare professionals can be considerably reduced.