Abstract
Background
Cyclic vomiting syndrome (CVS) is a chronic functional GI disorder; a characteristic compulsive “hot-water bathing” pattern is reported to alleviate symptoms during an acute episode. There is limited data on this bathing pattern: proposed mechanisms include core temperature increase via effects on cannabinoid type 1 receptors in the brain, skin transient receptor potential vanilloid 1 receptor stimulation, and blood flow shift from viscera to skin.
Aims
We thus sought to characterize the hot-water bathing pattern in patients with CVS and identify differences between heavy cannabis users in comparison to occasional and non-users.
Methods
We conducted a cross-sectional study of 111 patients with CVS at a single tertiary referral center. Questionnaires regarding clinical characteristics, hot-water bathing, and cannabis use were administered. Patients were classified based on cannabis usage into regular cannabis users (≥ 4 times/week), and occasional + non-users (< 4 times/week and no current use).
Results
A total of 81 (73%) respondents reported the hot-water bathing behavior during an episode. The majority (> 80%) noted a marked improvement in nausea, vomiting, abdominal pain and symptoms associated with panic. Regular cannabis users were more likely to use “very-hot” water (50% vs. 16%, p = 0.01) and time to relief of symptoms was longer (> 10 min) in this group, compared to the rest of the cohort.
Conclusions
Hot-water bathing relieves both GI and symptoms related to panic in most patients which appear to be modulated by chronic cannabis use. These findings can help inform future physiologic studies in CVS pathogenesis.
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We are grateful to Mark Oium for support with REDCap.
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Thangam Venkatesan is an ad hoc consultant for Takeda and Alnylam Pharmaceuticals. This does not have any bearing on the contents of this article. Cecilia Hillard serves on the scientific advisory boards for Beryl Therapeutics and Phytecs, Inc. and this does not pose any conflict of interest. The other authors have no relevant disclosures.
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Rosen, S., Diaz, R., Garacci, Z. et al. Hot-Water Bathing Improves Symptoms in Patients with Cyclic Vomiting Syndrome and Is Modulated by Chronic Cannabis Use. Dig Dis Sci 66, 1153–1161 (2021). https://doi.org/10.1007/s10620-020-06343-x
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DOI: https://doi.org/10.1007/s10620-020-06343-x