Cannabis Use Is Associated With an Increased Risk of Intestinal Obstruction in Patients Hospitalized With Diverticulitis.

Objectives Diverticulitis is a common cause of hospitalization. The use of substances such as tobacco and alcohol can predispose patients to diverticulitis, and smoking is also associated with an increased risk of diverticulitis complications. Cannabis availability is growing in the United States, but there is a lack of data on the effects of cannabis use on the outcomes of diverticulitis. Thus, we investigated the effects of cannabis use on diverticulitis outcomes. Methods A retrospective analysis was conducted using 2014 data from the National Inpatient Sample. Patient demographics and outcomes of diverticulitis were compared between the groups with and without a history of cannabis use. The outcomes of interest were inpatient mortality, length of stay, total hospital charge, intestinal obstruction, shock/hypotension, colectomy, intestinal abscess, intestinal fistula, and intestinal perforation. Results Among 48,214 patients with diverticulitis, 447 patients had a history of cannabis use. Patients with a history of cannabis use were younger, more likely to be male, less likely to be White, had a lower Charlson Comorbidity Index, and had shorter hospital stays. There were no significant differences in inpatient mortality and total hospital charge. After adjusting for age, sex, race, and the Charlson Comorbidity Index, cannabis use was an independent risk factor for intestinal obstruction in patients hospitalized with diverticulitis. There were no statistically significant differences in other outcomes. Conclusions This study indicates that patients hospitalized with diverticulitis with a history of cannabis use are more likely to have an intestinal obstruction. Inhibition of gastrointestinal motility by cannabis in the setting of diverticular inflammation may explain this finding.