Safety and outcomes of different endovascular treatment techniques for anterior circulation ischaemic stroke in the elderly: data from the Imperial College Thrombectomy Registry.

"Declarations Conflicts of interestThe authors have no financial interests directly or indirectly related to this work submitted for publication. Ethical approvalThis study has obtained approval from the UK Health Regulator Authority (HRA) (HRA Reference No.: 275260). The study has also received confirmation of capacity and capability from the Imperial College Healthcare NHS Trust. The study was conducted in accordance with the recommendations for physicians involved in research on human subjects adopted by the 18th World Medical Assembly, Helsinki 1964 and later revisions. Conflicts of interest The authors have no financial interests directly or indirectly related to this work submitted for publication."

"Funding This study was funded by the Graham-Dixon grant."