Cannabinoid Hyperemesis Syndrome: Diagnosis, Pathophysiology, and Treatment-a Systematic Review


cannabinoid hyperemesis syndrome

Current findings suggest that the body’s naturally stored cannabinoids might eventually overwhelm receptors in the gut or other systems, flipping the usual script where cannabis often helps with nausea. It is not unusual for CHS patients to present frequently at the ED and to be hospitalized multiple times per year. This suggests that prompt, accurate diagnosis of CHS may save the healthcare system considerable resources and spare the patient unnecessary testing and procedures.

How Common Is CHS?

Marijuana users as well as many clinicians are not aware of CHS, and patients may undergo unnecessary tests, scans, and other procedures to get an accurate diagnosis. With liberalization of marijuana laws and favorable public opinion about the healing properties of cannabis, CHS may be more frequently observed in clinical practice. Prior to the diagnosis of CHS, patients often suffer for years with potentially debilitating symptoms on a cyclic basis. These patients typically present multiple times to health care facilities with similar symptoms and receive multiple diagnostic tests and invasive procedures without a clear diagnosis or treatment plan. After the increasing legalization of cannabis, there has been a rising trend in cannabis consumption, especially among heavy users.

Consuming Cannabis Before Bed Doesn’t Cause Impairment the Next Day, Study Affirms

  • (Recreational use and sale of cannabis in Canada was legalized starting in 2018).
  • The enteric nervous system contains CB1 receptors, which, when activated, can inhibit GI motility by inhibiting the release of those transmitters that cause stomach contractions 47.
  • The best and only way to prevent or reduce your risk for CHS is to avoid or quit marijuana use.
  • One possible treatment option involves the use of benzodiazepines, such as lorazepam, to control nausea and vomiting.
  • While these are all just theories, they make sense with what we know about cannabis and its impact on the human body.

If you use cannabis often and frequently experience vomiting and nausea, you should tell a healthcare professional. Another misconception is that CHS is a subtype of cyclic vomiting syndrome (CVS). While these are similar conditions symptomatically, they have very different root causes. CVS is actually a type of migraine condition that usually appears during infancy or childhood and develops into more classic migraine symptoms later on. Studies on CHS on the other hand have found the average age of onset to be 32 years old, and does not seem to be related to migraine. One doctor reported using injectable lorazepam to help control nausea and vomiting symptoms in an adult.

Debunked CHS Theories

Since 2009, the rate of persistent vomiting has increased significantly and continues to increase at about 8% a year 5. This suggests that this once “rare” condition is going to emerge as an increasingly common presentation in emergency departments (ED) and clinics. CHS is not trivial; there are fatal cases of CHS (as cause of death or contributing to death) reported in the literature. Cannabinoid Hyperemesis Syndrome (CHS), first described in 2004,2 is characterized by cyclic vomiting that occurs in Halfway house the context of chronic daily or near-daily cannabis use.

cannabinoid hyperemesis syndrome

Substances

cannabinoid hyperemesis syndrome

In this article, we describe CHS and discuss the causes, symptoms, diagnosis, and treatment of the condition. Exogenous ligands, such as N-acyl ethanolamines and mono-acyl-glycerols, include notable compounds like THC (which contains a dibenzopyran ring), cannabidiol, cannabigerol, and cannabinol 23,30. These ligands interact with G protein-coupled receptors (GPR), GPR18 and GPR55, peroxisome proliferator-activated receptors (PPARs), and TRPV1. Cannabinoids affect the pituitary–adrenal axis and stress-responsive brain regions. Studies suggest that CHS may involve disruption at the hippocampal–hypothalamic–pituitary level 22. Chronic cannabis use can lower pituitary hormone levels, including the growth cannabinoid hyperemesis syndrome hormone, follicle-stimulating hormone, and luteinizing hormone, which has been shown to normalize after stopping use 23,24.

This is because many doctors are unaware of the syndrome and because individuals rarely want to admit to using marijuana, an illegal substance in the United States. In the brain, the cannabinoid system helps regulate several aspects of the endocrine system. CB1 receptor activation in the hypothalamus and pituitary gland results in modulation of all hypothalamic-pituitary axes 38. Receptor activation leads to inhibitory effects on the release of growth hormone, thyroid hormone, prolactin, and luteinizing hormone 38. In animal studies mice lacking CB1 receptors demonstrate enhancement in circadian HPA axis activity peaks and impairment in glucocorticoid feedback 39.

How states have reshaped marijuana laws and what’s next

  • Patients experience complete relief of the symptoms, which can last days, weeks, or even months.
  • Because you still believe marijuana helps nausea, you might use it more often, accidentally making your condition worse.
  • “I basically spent that week laying in bed and just sipping slowly on water or sipping slowly on my Pedialyte, trying to get as much electrolytes and nutrition as I could,” recalled Brittany, 27, who today is sober.
  • They start to feel better when they stop using marijuana but can feel bad if they use it again.

Most CHS patients discover the symptomatic relief of hot showers on their own and use this method to control symptoms 1. In a case study from Texas, a 27-year-old https://ecosoberhouse.com/success-story/justins-success-story/ male patient with CHS reported he found relief in hot showers but over time, he became refractory to the hot water and ended up having to visit the ED 105. Gastric motility and gastroparesis must be discussed in the context of CHS. The enteric nervous system contains CB1 receptors, which, when activated, can inhibit GI motility by inhibiting the release of those transmitters that cause stomach contractions 47.

cannabinoid hyperemesis syndrome

cannabinoid hyperemesis syndrome

By Rome IV criteria, the diagnosis of CHS is confirmed only when symptoms resolve upon ceasing use. Clinicians should help patients toward this goal following physiologic stabilization. These help quantify the degree of substance use to build insight and direct referrals. CHS is a condition that involves cyclic nausea and vomiting in people who generally have a long history of cannabis use. In one study, about 84% of people who received treatment for CHS stopped using cannabis, and of those, about 86% reported resolution of symptoms.


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