Perioperative and anaesthetic considerations of marijuana use

The psychoactive substance cannabis is the most-commonly used drug around the world, and its use is becoming more prevalent globally. Additionally, it is becoming available in an increasing variety of forms. As such, it is imperative that perioperative practitioners have an understanding of the drug, its effects, and its implications in perioperative care. There is currently a lack of a standardised approach to a patient who uses cannabis, and prospective studies prove difficult given the current legal status of cannabis. This literature review seeks to provide information regarding cannabis and its use. Specifically, we explore the systemic effects of marijuana as well as perioperative and anaesthetic implications so that safer, more effective care may be administered.