Dr. Macdonald is a fellowship-trained cerebrovascular neurosurgeon with more than 30 years of experience in surgery for brain and spine aneurysms, vascular malformations, hemorrhages, carotid artery surgery and microsurgery for brain tumors. He is an authority on subarachnoid hemorrhage, being the most cited person in the world in the field conducting clinical and translational research on the pathophysiology and treatment of subarachnoid hemorrhage, chronic subdural hematoma and vascular instability in cavernous malformations. Dr. Macdonald was head, division of neurosurgery, St. Michael’s Hospital, Toronto Canada and professor of surgery, University of Toronto from 2007 — 2019. Prior to that, he was professor of surgery, University of Chicago (1993 — 2006). He cofounded Edge Therapeutics in 2009 and was chief scientific officer until 2017. Edge was a publicly traded biotechnology company that developed drugs for treatment of acute brain injuries. He has written over 320 peer-reviewed publications, 97 book chapters, 10 books, editorials and other published papers. Dr. Macdonald had secured grant funding from the National Institutes of Health, American Heart Association, Canadian Institutes for Health Research and others.

He has been married to his college sweetheart, Sheilah Stedman for more than three decades. They have three children, all of whom stayed away from the medical field and became engineers.

In his spare time, Dr. Macdonald enjoys running and biking and is a threetime qualifier and finisher of the Ironman World Championships in Kailua, Kona, Hawaii.

Conditions Treated:
Cranial
Vascular:

• Aneurysms
• Arteriovenous Malformation
• Brain Hemorrhages
• Carotid Artery Disease, Carotid Stenosis
• Cavernoma
• Cavernous Malformation
• Cerebrovascular Spasm
• Moyamoya Disease
• Subarachnoid Hemorrhage
• Vascular Malformations

Tumors:

• Colloid Cyst
• Dermoid, Epidermoid
• Gliomas
• Meningioma
• Metastasis
• Pituitary Tumor, Craniopharyngioma