; for the ESO-KSU session participants* Abstract About the meeting: The purpose of the European Stroke Organisation (ESO)-Karolinska Stroke Update Conference is to provide updates on recent stroke therapy research and to give an opportunity for the participants to discuss how these results may be implemented into clinical routine. Several scientific sessions discussed in the meeting and each session produced consensus statements. The meeting started 20 years ago as Karolinska Stroke Update, but since 2014, it is a joint conference with ESO. Importantly, it provides a platform for discussion on the ESO guidelines process and on recommendations to the ESO guidelines committee on specific topics. By this, it adds a direct influence from stroke professionals otherwise not involved in committees and work groups on the guidelines procedure. The discussions at the conference may also inspire new guidelines when motivated. The topics raised at the meeting are selected by the scientific programme committee mainly based on recent important scientific publications. The ESO-Karolinska Stroke Update consensus statement and recommendations will be published every 2 years and it will work as implementation of ESO-guidelines Background: This year's ESO-Karolinska Stroke Update Meeting was held in Stockholm on 13-15 November 2016. There were 10 scientific sessions discussed in the meeting and each session produced a consensus statement (Full version with background, issues, conclusions and references are published as web-material and at http://www.eso-karolinska.org/2016 and http://eso-stroke.org) and recommendations which were prepared by a writing committee consisting of session chair(s), secretary and speakers and presented to the 312 participants of the meeting. In the open meeting, general participants commented on the consensus statement and recommendations and the final document were adjusted based on the discussion from the general participants. Recommendations (grade of evidence) were graded according to the 1998 Karolinska Stroke Update meeting with regard to the strength of evidence. Grade A Evidence: Strong support from randomised controlled trials and statistical reviews (at least one randomised controlled trial plus one statistical review). Grade B Evidence: Support from randomised controlled trials and statistical reviews (one randomised controlled trial or one statistical review). Grade C Evidence: No reasonable support from randomised controlled trials, recommendations based on small randomised and/or non-randomised controlled trials evidence.

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Background and Purpose: Outcome in patients hospitalized for acute stroke varies considerably between populations. Within the framework of the GAIN International trial, a large multicenter trial of a neuroprotective agent (gavestinel, glycine antagonist), stroke outcome in relation to health care resource use has been compared in a large number of countries, allowing for differences in case mix. Methods: This substudy includes 1,422 patients in 19 countries grouped into 10 regions. Data on prognostic variables on admission to hospital, resource use, and outcome were analyzed by regression models. Results: All results were adjusted for differences in prognostic factors on admission (NIH Stroke Scale, age, comorbidity). There were threefold variations in the average number of days in hospital/institutional care (from 20 to 60 days). The proportion of patients who met with professional rehabilitation staff also varied greatly. Three-month case fatality ranged from 11% to 28%, and mean Barthel ADL score at three months varied between 64 and 73. There was no relationship between health care resource use and outcome in terms of survival and ADL function at three months. The proportion of patients living at home at three months did not show any relationship to ADL function across countries. Conclusions: There are wide variations in health care resource use between countries, unexplained by differences in case mix. Across countries, there is no obvious relationship between resource use and clinical outcome after stroke. Differences in health care traditions (treatment pathways) and social

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A recording of ≥ 30 seconds is required to diagnose paroxysmal atrial fibrillation when using ambulatory ECG monitoring. It is unclear if shorter runs are relevant with regards to stroke risk. Methods An online survey of cardiologists and stroke physicians was carried out to assess current management of patients with short runs of atrial arrhythmia within Europe. Results Respondents included 311 clinicians from 32 countries. To diagnose atrial fibrillation, 80% accepted a single 12-lead ECG and 36% accepted a single run of < 30 seconds on ambulatory monitoring. Stroke physicians were twice as likely to accept < 30 seconds of arrhythmia as being diagnostic of atrial fibrillation (OR 2.43, 95% CI 1.19-4.98). They were also more likely to advocate anticoagulation for hypothetical patients with lower risk; OR 1.9 (95% CI 1.0-3.5) for a patient with CHA2DS2-VASc = 2. Conclusion Short runs of atrial fibrillation create a dilemma for physicians across Europe. Stroke physicians and cardiologists differ in their diagnosis and management of these patients. KeywORDS atrial arrhythmia, detection, online survey, strokeDeClARATION Of INTeReSTS KRL is chairman of the independent data monitoring committee for the ESUS-RESPECT trial sponsored by Boehringer Ingelheim, and has received grant support for research into post-stroke AF detection from the Chief Scientist Office for Scotland. MeTHODS Survey questionnaireA survey questionnaire was created using Survey Monkey (www.surveymonkey.com). This comprised 12 questions: three to define basic demographic data for respondents; four to determine each respondent's diagnostic criteria for AF; two to establish their current practice regarding the investigation of possible AF following ischaemic stroke; and three to investigate specific factors that would influence a physician's decision to start oral anticoagulant treatment (Appendix 1, available with the online version of this paper). All questions required an answer to complete the survey, with space for optional additional comments at the end. The aim was not to assess physicians' knowledge of clinical guidelines, but rather to elicit what clinicians do in their daily practice. For the purposes of the survey, electrocardiographic findings suggestive of AF were defined as 'atrial arrhythmia without p waves and with irregular ventricular response'.The online survey was opened on 3 December 2014 and a link to the survey was emailed to national and European societies for cardiology and stroke medicine, along with a cover letter providing additional information. The survey link was included in the electronic newsletters of the European Society of Cardiology, the European Stroke Organisation and the AF Association. In order to maximise the response rate, national cardiac and stroke societies affiliated with the above European organisations were emailed directly (59 and 31 societies, respectively). A reminder email was sent in March 2015. Positive responses were received from the following national societies confirming the distrib...