Dr. Karl Boyle

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Atrial Fibrillation and Stroke

In this Lecture, Dr. Boyle provides a very comprehensive review of AF, stroke and stroke prevention. He outlines the importance of risk stratification for stroke and bleeding. He highlights novel prediction scores to help better stratify ischaemic events in low risk patients. He describes the different treatment options for stroke prevention with a focus on the older patient and highlights the benefit of NOACs vs warfarin in this population. Based on new clinical evidence he describes how to manage patients with an intracerebral haemorrhage and AF and how to prevent further events. Finally, he discusses the association between AF and dementia and the growing evidence that dementia is higher without oral anticoagulant treatment in patients with AF.


Dr. Karl Boyle obtained his undergraduate medical training at Trinity College, Dublin, graduating with an honours degree in 2001. He undertook postgraduate training in General Internal Medicine and Geriatric Medicine before further subspecialty training in Stroke Medicine. This included a Clinical Stroke and Dementia Fellowship at Sunnybrook Health Sciences Centre, Toronto and a Masters in Stroke Medicine from Danube University, Krems, Austria. He worked as a Consultant Stroke Physician at Addenbrookes Hospital, Cambridge, England before returning to Toronto in 2013 as the Director of the Inpatient Stroke Service within the Division of Neurology at Sunnybrook Health Sciences Centre. Dr. Boyle was an Assistant Professor (Clinician Teacher) at the University of Toronto with a primary academic focus in medical education and he won several prestigious citywide teaching awards during his time in Toronto. In 2017 Dr. Boyle joined Beaumont hospital as a Consultant Stroke Physician and Geriatrician. His specialist areas of interest include organization of stroke services, hyperacute stroke treatment, intracerebral haemorrhage, stroke prevention, atrial fibrillation, carotid stenosis, small vessel disease, stroke in the young, neuroimaging and the early diagnosis of cognitive impairment and dementia.

Dr. Karl Boyle

Consultant Stroke Physician
Beaumont Hospital & Beaumont Private Clinic

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