Background: Medication-related adverse events (MRE) in anaesthesia care are frequent and require a deeper understanding if we are to prevent medication harm. Methods: We searched for reported MRE from the Spanish Anaesthesia Incident Reporting System (SENSAR) database over a 10-yr period. SENSAR is a cross-national, multicentre system focused on perioperative and critical care. A descriptive analysis of independent variables, phase of medication process, type of MRE, and medication group involved, and their relationships with morbidity was conducted. Results: A total of 1970 MRE were identified from 7072 reported incidents. Patient harm was reported in 31% of the MRE. The administration phase was more frequent (42%) and showed the highest harm rate (44%) compared with other medication process phases. The most frequent types of MRE were wrong treatment regimen and wrong medication (55% of cases). The medication groups most commonly reported were those that alter haemostasis (18%), vasoconstrictor agents (13%), and opioids (10%). Vasoconstrictor agents, benzodiazepines, and neuromuscular blocking agents were the medication groups involved in patient harm four-fold more, and opioids three-fold more, than medications that alter haemostasis. The 1970 incidents were investigated and led to implementation of 4223 local corrective patient safety and quality improvement measures. Conclusions: Patient harm in the perioperative setting from medications remains a major issue for patients, hospital leaders, and clinicians. We found patterns and specific causes that can be mitigated through proven systems solutions, and should be taken into consideration in designing sustainable solutions for safe perioperative care. Clinical trial registration: NCT03615898.

Background Engagement in exercise by haemodialysis (HD) patients has been shown to generate benefits both in terms of improved functional capacity and in the health-related quality of life. The use of non-immersive virtual reality (VR) games represents a new format for the implementation of intradialysis exercise. Some studies have shown that engaging in exercise for 6 months reduces the consumption of antihypertensive drugs and decreases the time spent admitted to hospital among individuals receiving HD treatments. The objective of this study was to evaluate changes in the consumption of healthcare resources and micro-costing for patients on HD who completed a VR exercise program. Materials and methods Design: This study is a secondary analysis of a clinical trial. The participants performed an intradialysis exercise program with non-immersive virtual reality for 3 months. The variables were recorded in two periods: 12 months before and 12 months after the start of the exercise program. Results The micro-costing analysis showed a significant decrease in the mean cost, in euros, for the consumption of laboratory tests − 330 (95% CI:[− 533, − 126];p = 0.003), outpatient visits − 351 ([− 566, − 135];p = 0.003), and radiology tests − 111 ([− 209, − 10];p = 0.03) in the 12 months after the implementation of the exercise program relative to the 12 months prior to its start. Conclusion The implementation of intradialysis exercise programs decreased the expenditure of some healthcare resources. Future studies could help clarify if longer interventions would have a stronger impact on these cost reductions.