Emerg Med Australas. 2022 Feb 23. doi: 10.1111/1742-6723.13944. Online ahead of print.


OBJECTIVE: To describe the local experience of adult patients presenting with cannabinoid hyperemesis syndrome (CHS) to an urban ED in the outer northern suburbs of Melbourne.

METHODS: Retrospective chart review of adult patients presenting to the ED with a documented history of CHS or equivalent terminology from January 2015 to January 2021. Age, sex, cannabis use, clinical features, pathology results, imaging and symptomatic management were examined as well as outcomes regarding disposition, representation, morbidity and mortality.

RESULTS: One hundred and forty-two adult presentations were included. Sixty-seven were unique presentations and 29 were patients who represented during the study period. Most represented within 3 months (37.8%) and most represented at least twice. Males were overrepresented (68.7%). Patients were young (median age 31 years, interquartile range 23-35 years) and all had a history of regular cannabis use (usually daily). Cyclical nausea and/or vomiting was the most common clinical feature compared to others in previously reported diagnostic criteria. Patients typically had elevated white cell counts with associated neutrophilia (75.8%) and mild hypokalaemia (57.9%). Lipase was not elevated, and C-reactive protein was typically less than 50 mmol/L (98.2%). Imaging was not commonly performed but largely normal. Treatment was supportive with anti-emetic use, intravenous fluids and analgesia. There were no deaths or admissions to intensive care.

CONCLUSIONS: Cyclical nausea and vomiting was the most common feature observed in this cohort compared to other clinical features reported in prior studies. Serum lipase was normal and C-reactive protein only mildly elevated. Prospective studies are required to further assess these findings.

PMID:35199462 | DOI:10.1111/1742-6723.13944

Source: ncbi 2

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