• V Pittet, C Perret, V Moret, O Despond, B Burnand, and ADS Study Group.
• Institute of Social & Preventive Medicine (IUMSP), Lausanne University Hospital, Lausanne, Switzerland.
• Acta Anaesthesiol Scand. 2013 Nov 1;57(10):1275-86.

BackgroundAnaesthesia Databank Switzerland (ADS) is a voluntary data registry introduced in 1996. Its ultimate goal is to promote quality in anaesthesiology.MethodsThe ADS registry analyses routinely recorded adverse events and provides benchmark comparisons between anaesthesia departments. Data collection comprises a set of 31 variables organised into three modules, one mandatory and two optional.ResultsIn 2010, the database included 2,158,735 anaesthetic procedures. Over time, the proportions of older patients have increased, the largest group being aged 50-64 years. The percentage of patients with American Society of Anesthesiologists (ASA) status 1 has decreased while the percentage of ASA status 2 or 3 patients has increased. The most frequent comorbidities recorded were hypertension (21%), smoking (16%), allergy (15%) and obesity (12%). Between 1996 and 2010, 125,579 adverse events were recorded, of which 34% were cardiovascular, 7% respiratory, 39% technical and 20% non-specific. The most severe events were resuscitation (50%), oliguria (22%), myocardial ischaemia (17%) and haemorrhage (10%).ConclusionRoutine ADS data collection contributes to the monitoring of trends in anaesthesia care in Switzerland. The ADS system has proved to be usable in daily practice, although this remains a constant challenge that is highly dependent on local quality management and quality culture. Nevertheless, success in developing routine regular feedback to users to initiate discussions about anaesthetic events would most likely help strengthen departmental culture regarding safety and quality of care.© 2013 The Acta Anaesthesiologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.

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