cannabidiol and Critical-Illness

Subarachnoid hemorrhage (SAH) is a major health burden that accounts for approximately 5% of all strokes. The most common cause of a non-traumatic SAH is the rupture of a cerebral aneurysm. The most common symptom associated with SAH is a headache, often described as "the worst headache of my life." Delayed cerebral ischemia (DCI) is a major factor associated with patient mortality following SAH and is often associated with SAH-induced cerebral vasospasm (CV). Cannabidiol (CBD) is emerging as a potential drug for many therapeutic purposes, including epilepsy, anxiety, and pain relief. We aim to review the potential use of CBD as a treatment option for post-SAH critically ill patients. Through a literature review, we evaluated the known pharmacology and physiological effects of CBD and correlated those with the pathophysiological outcomes associated with cerebral vasospasm following subarachnoid hemorrhage. Although overlap exists, data were formatted into three major categories: anti-inflammatory, vascular, and neuroprotective effects. Based on the amount of information known about the actions of CBD, we hypothesize the anti-inflammatory effects are likely to be the most promising therapeutic mechanism. However, its cardiovascular effects through calcium regulation and its neuroprotective effects against cell death, excitotoxicity, and oxidative stress are all plausible mechanisms by which post-SAH critically ill patients may benefit from both early and late intervention with CBD. More research is needed to better understand if and how CBD might affect neurological and vascular functions in the brain following injury such as subarachnoid hemorrhage.

Topics: Brain Ischemia; Cannabidiol; Critical Illness; Headache; Humans; Neuroprotective Agents; Subarachnoid Hemorrhage; Vasospasm, Intracranial

Drug-resistant seizures are life-threatening and contribute to sustained hospitalization. We present the case of a critically ill 28-year-old male with Lennox-Gastaut syndrome who had approximately 30 seizures/day in the intensive care unit.. Patient required mechanical ventilation and pharmacologically induced thiopentone coma. He was commenced on cannabidiol and subsequently extubated. He remained seizure-free thereafter on a combination of cannabidiol and anti-epileptic medication that predated his critical illness.. Our case report provides a unique perspective on the role of cannabidiol in achieving remission from drug-resistant seizures in critically ill patients.

Topics: Adult; Anticonvulsants; Cannabidiol; Critical Illness; Humans; Lennox Gastaut Syndrome; Male; Seizures