Dr. Dhar is an Attending Physician in the Neurology/Neurosurgery Intensive Care Unit at Barnes-Jewish Hospital and carries out clinical research in neurological critical care. The focus of his research seeks to understand the brain's response to the transfusion of red blood cells in patients at risk for cerebral ischemia after aneurysmal subarachnoid hemorrhage.

Medical Training

Dr. Dhar studied in the Arts & Science Programme at McMaster University before completing his M.D. in 2000 at the same institution, in Hamilton, Ontario, Canada. He completed a residency in neurology at the University of Western Ontario, and London Health Sciences Centre, becoming a Fellow of the Royal College of Physicians and Surgeons of Canada in 2005. Dr Dhar is board certified in Neurology, Neurocritical Care, and Vascular Neurology.

Selected Publications

Tellez-Zenteno JF, Dhar R, Hernandez-Ronquillo L, Wiebe S. Long-term outcomes in epilepsy surgery: antiepileptic drugs, mortality, cognitive and psychosocial aspects. Brain 2007; 130: 334-345.

Dhar R, Stitt L, Hahn AF. The morbidity and outcome of patients with Guillain-Barré syndrome admitted to the intensive care unit. J Neurol Sci 2008; 264: 121-128.

Dhar R, Young GB, Marotta P. Perioperative neurological complications after liver transplantation are best predicted by pre-transplant hepatic encephalopathy. Neurocrit Care 2008; 8: 253-258.

Dhar R, Diringer MN. The burden of the systemic inflammatory response predicts vasospasm and outcome after subarachnoid hemorrhage. Neurocrit Care 2008; 8: 404-412.

Keyrouz SG, Dhar R, Axelrod YK. Call-Fleming syndrome and orgasmic cephalgia. Headache 2008; 48(6): 967-971.

Corry JJ, Dhar R, Murphy T, Diringer MN. Hypothermia for refractory status epilepticus. Neurocrit Care 2008, 9(2): 189-197.

Keyrouz SG, Dhar R, Diringer MN. Variation in osmotic response to sustained mannitol administration. Neurocrit Care 2008, 9(2): 204-209.

Murphy T, Dhar R, Diringer MN. Conivaptan bolus dosing for the correction of hyponatremia in the neurointensive care unit. Neurocrit Care 2009; 11(1): 14-19.

Dhar R, Zazulia AR, Videen TO, Zipfel GJ, Derdeyn CP, Diringer MN. Red blood cell transfusion increases cerebral oxygen delivery in patients with anemia after subarachnoid hemorrhage. Stroke 2009; In Press.

Dhar R, Mirsattari SM. Current approach to the diagnosis and treatment of refractory status epilepticus. In: Advances in Neurology - Intractable epilepsies. Blume WT, Ed. New York. 2006; Vol 97, Chapter 26 pp 245-254.

Tellez JF, Dhar R, Wiebe S. Long-term seizure outcomes following epilepsy surgery: a systematic review and meta-analysis. Brain 2005; 128: 1188-98.
Balachandra K, Goela A, Pickett G, Krawitz S, Dhar R. "Is it a tumour?" Can J CME 2004; 16(2): 61-2.

Dhar R, Duke RJ, Sealey BJ. Cough syncope from constrictive pericarditis: a case report. Can J Cardiol 2003; 19(3):295-6.