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Cyclic vomiting presentations following marijuana liberalization in Colorado.

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Area of Science:

  • Gastroenterology
  • Public Health
  • Pharmacology

Background:

  • Cannabinoid hyperemesis syndrome (CHS) is a condition linked to chronic marijuana use.
  • Previous case reports suggested a correlation between cyclic vomiting and marijuana consumption.

Purpose of the Study:

  • To determine the prevalence of cyclic vomiting presentations before and after medical marijuana liberalization in Colorado (2009).
  • To assess the association between marijuana use and cyclic vomiting visits post-legalization.

Main Methods:

  • A cross-sectional study analyzing emergency department visits for cyclic vomiting.
  • Utilized International Classification of Diseases, ninth revision, and Rome III criteria for diagnosis.

Main Results:

  • Cyclic vomiting visit prevalence increased from 41 to 87 per 100,000 ED visits post-liberalization (PR=1.92).
  • Patients with cyclic vomiting were more likely to have documented marijuana use after liberalization (OR=3.59).

Conclusions:

  • The prevalence of cyclic vomiting nearly doubled following medical marijuana liberalization.
  • Increased reporting of marijuana use in cyclic vomiting patients may be due to increased use, better reporting, or both.