Cannabis Use Was Associated With Lower Odds of Complete Recovery From Cyclic Vomiting Syndrome

In a 15-year study of 455 CVS adults, only 19% fully recovered, and cannabis use was among the strongest negative predictors (OR 0.36).

Partovi, Omeed et al.·Neurogastroenterology and motility·2023·Moderate EvidenceRetrospective Cohort
RTHC-04836Retrospective CohortModerate Evidence2023RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Retrospective Cohort
Evidence
Moderate Evidence
Sample
N=455

What This Study Found

Episodes dropped from 18 to 6.8/year, ER visits from 6.1 to 2, hospitalizations from 2.3 to 0.7. Only 19% had complete resolution. Cannabis use OR 0.36 (p = 0.0007) for resolution. 19 patients (4%) died.

Key Numbers

455 patients. Episodes: 18 to 6.8/year. Resolution: 19%. Cannabis OR: 0.36. 4% mortality.

How They Did This

Retrospective analysis of 455 CVS patients at a tertiary center, mean 47.4 months follow-up.

Why This Research Matters

Largest long-term adult CVS follow-up. Cannabis was one of the strongest negative predictors, raising questions about CHS overlap.

The Bigger Picture

The 4% mortality underscores CVS severity. Some patients labeled CVS may actually have CHS.

What This Study Doesn't Tell Us

Retrospective. Single center. Referral bias. Cannot distinguish CVS from CHS in all cases.

Questions This Raises

  • ?How many CVS patients actually have CHS?
  • ?Would cannabis cessation improve CVS outcomes?

Trust & Context

Key Stat:
Cannabis use: 64% lower odds of complete CVS resolution
Evidence Grade:
Large retrospective cohort with multivariable analysis, subject to referral bias.
Study Age:
Published 2023.
Original Title:
Clinical characteristics and long-term outcomes in patients with cyclic vomiting syndrome: A 15-year experience at a tertiary referral center.
Published In:
Neurogastroenterology and motility, 35(7), e14571 (2023)
Database ID:
RTHC-04836

Evidence Hierarchy

Meta-Analysis / Systematic Review
Randomized Controlled Trial
Cohort / Case-ControlFollows or compares groups over time
This study
Cross-Sectional / Observational
Case Report / Animal Study

Looks back at existing records to find patterns.

What do these levels mean? →

Frequently Asked Questions

Does cannabis affect CVS outcomes?

Cannabis use was one of the strongest negative predictors of complete resolution, with 64% lower odds.

Can adults recover from CVS?

Most improved with specialized care, but only 19% fully recovered. 4% died.

Read More on RethinkTHC

Cite This Study

RTHC-04836·https://rethinkthc.com/research/RTHC-04836

APA

Partovi, Omeed; Patel, Milan; Kovacic, Katja; Petrova, Ana; Garacchi, Zhuping; Venkatesan, Thangam. (2023). Clinical characteristics and long-term outcomes in patients with cyclic vomiting syndrome: A 15-year experience at a tertiary referral center.. Neurogastroenterology and motility, 35(7), e14571. https://doi.org/10.1111/nmo.14571

MLA

Partovi, Omeed, et al. "Clinical characteristics and long-term outcomes in patients with cyclic vomiting syndrome: A 15-year experience at a tertiary referral center.." Neurogastroenterology and motility, 2023. https://doi.org/10.1111/nmo.14571

RethinkTHC

RethinkTHC Research Database. "Clinical characteristics and long-term outcomes in patients ..." RTHC-04836. Retrieved from https://rethinkthc.com/research/partovi-2023-clinical-characteristics-and-longterm

Access the Original Study

Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.

This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.