Eleven marijuana users developed a rare bowel condition requiring surgery

A case series of 11 patients found an association between heavy marijuana use and small bowel intussusception, a rare condition where the intestine telescopes into itself.

Kakish, Daniel et al.·Journal of surgical case reports·2020·Preliminary EvidenceCase Report
RTHC-02639Case ReportPreliminary Evidence2020RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Case Report
Evidence
Preliminary Evidence
Sample
N=11

What This Study Found

Eleven patients, all heavy marijuana users, presented with small bowel intussusception at a single institution. All required surgical intervention. No alternative cause (such as tumor or anatomical defect) was identified in most cases, suggesting a possible functional mechanism related to cannabis effects on gut motility.

Key Numbers

11 patients; all heavy marijuana users; all required surgical treatment; no structural lead point identified in most cases.

How They Did This

Retrospective case series of 11 patients at a single institution who presented with small bowel intussusception and had documented heavy marijuana use.

Why This Research Matters

Small bowel intussusception in adults is rare and usually caused by structural abnormalities. This series raises the possibility that heavy cannabis use might affect gut motility in ways that predispose to this condition.

The Bigger Picture

Cannabis is known to affect gastrointestinal motility through CB1 receptors in the gut. This case series adds to a growing body of literature linking heavy cannabis use to GI complications, including cannabinoid hyperemesis syndrome.

What This Study Doesn't Tell Us

Case series without controls; no way to establish causation. Single institution may reflect referral bias. Small sample size. No dose-response data or quantification of cannabis use.

Questions This Raises

  • ?Is there a dose-dependent relationship between cannabis use and intussusception risk?
  • ?What is the mechanism, and does it involve cannabinoid receptor-mediated changes in gut motility?

Trust & Context

Key Stat:
11 patients, all heavy marijuana users, all needed surgery
Evidence Grade:
Preliminary: case series with no control group and small sample size.
Study Age:
Published 2017.
Original Title:
Small bowel intussusception in marijuana users.
Published In:
Journal of surgical case reports, 2020(9), rjaa335 (2020)
Database ID:
RTHC-02639

Evidence Hierarchy

Meta-Analysis / Systematic Review
Randomized Controlled Trial
Cohort / Case-Control
Cross-Sectional / Observational
Case Report / Animal StudyOne case or non-human subjects
This study

Describes what happened to one person or a small group.

What do these levels mean? →

Frequently Asked Questions

What is intussusception?

A condition where one part of the intestine telescopes into an adjacent section, causing obstruction. In adults, it is rare and usually caused by a structural abnormality like a tumor.

How common is this complication?

Very rare overall. This case series identified 11 cases at one institution, but no population-level incidence data exists linking cannabis use to intussusception.

Read More on RethinkTHC

Cite This Study

RTHC-02639·https://rethinkthc.com/research/RTHC-02639

APA

Kakish, Daniel; Alaoudi, Marwan; Welch, Brian; Fan, David; Meghpara, Melissa; Mandava, Nageswara; Kumthekar, Narendra. (2020). Small bowel intussusception in marijuana users.. Journal of surgical case reports, 2020(9), rjaa335. https://doi.org/10.1093/jscr/rjaa335

MLA

Kakish, Daniel, et al. "Small bowel intussusception in marijuana users.." Journal of surgical case reports, 2020. https://doi.org/10.1093/jscr/rjaa335

RethinkTHC

RethinkTHC Research Database. "Small bowel intussusception in marijuana users." RTHC-02639. Retrieved from https://rethinkthc.com/research/kakish-2020-small-bowel-intussusception-in

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.