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Chan, Johanna

0000-0001-9949-8379

Mayo Clinic

Mayo Clinic in Florida

Citations 4

Cannabis use in Patients With Inflammatory Bowel Disease is Associated With Longer Endoscopic Duration and Endoscopic Inflammation
Loeb, Lauren , Hochwald, Alexander , Picco, Michael F., Chan, Johanna , Kinnucan, Jami , Chan, Johanna L, Kinnucan, Jami A., Hashash, Jana G. , Chadha, Ryan , Farraye, Francis A.

Crohn's & Colitis 360 | July 2, 2025 | Volume: 7 | Issue: 3 | Pages: No page available

10.1093/crocol/otaf034 Get It

Abstract Background Patients with inflammatory bowel disease (IBD) often experience symptoms refractory to available treatments, prompting the use of alternative therapies like cannabis. Previous studies have shown cannabis users require higher levels of sedation for procedures. The anti-inflammatory effects of cannabis have been studied with mixed conclusions. We aimed to investigate if patients with IBD who reported cannabis use required more resources for endoscopic procedures and were more likely to have endoscopic inflammation. Methods This is a retrospective case–control study of adult patients with IBD between November 2018 and November 2022 at a tertiary academic medical center undergoing endoscopic evaluation of acute complaints related to IBD. Cases were matched for age, sex, and body mass index. Results There were 124 patients with IBD with 62 patients reporting cannabis use and 62 patients without reported cannabis use. There was a significant difference in endoscopy duration (P < .001) and endoscopic inflammation (P = .044) between groups. There was no significant difference in recovery room length of stay (P = .15), IBD treatment during time of endoscopy (P = .84), stricture (P = .53), propofol dose administered when adjusted for procedure duration (P = .082), or endoscopic duration between cannabis users with and without endoscopic inflammation (P = .194). Conclusions IBD cannabis users had longer endoscopic durations and were more likely to exhibit inflammation on endoscopic evaluation compared to cannabis non-users. Our study underscores the importance of medication reconciliation for more accurate resource allocation. Additionally, federal expansion of cannabis research is needed for randomized control trials to fulfill the presently unmet need for data on patient outcomes.
Gastrostomy Tubes in Trauma Patients
Chan, Johanna , Huang, Steven Y. , Lin, Yuan‐Mao , Murthy, Ravi

Digestive Disease Interventions | April 8, 2025 | Volume: 10 | Issue: 02 | Pages: 102-107

10.1055/s-0045-1807246 Get It

Abstract Gastrostomy tubes provide essential long-term enteral nutritional support for trauma patients unable to tolerate oral intake or if prohibited due to associated injuries. This review aims to explore the indications and special considerations unique to gastrostomy tube placement and management for patients following trauma. The specific special considerations addressed in this article are timing of gastrostomy tube placement, timing of gastric tube feeding, technique, indications for postpyloric feeding tubes, concomitant corticosteroid use, safety in patients with an open abdomen, overcoming an inability to pass a nasogastric tube, and considerations for postgastrostomy tube management.
A Rare Case of Sigmoid Colon Perforation in a Patient With Severe Acute Pancreatitis
Saleh, Hasan , Nimma, Induja R., Huang, Yuting , Amiraian, Dana , Pang, Maoyin , DeLeon, Michelle , Chan, Johanna , Huang, Yuting , Lewis, Michele D. , Hashash, Jana G.

ACG Case Reports Journal | May 6, 2024 | Volume: 11 | Issue: 5 | Pages: e01357

10.14309/crj.0000000000001357 Get It

ABSTRACT Severe acute pancreatitis can cause systemic inflammation and multiorgan failure. We present the case of a 60-year-old woman who presented with necrotizing pancreatitis and subsequently developed a sigmoid colon perforation. The perforation presumably occurred because of extravasation of pancreatic enzymes into the abdominal cavity, resulting in colonic wall injury. Our case highlights the rare colonic complications of severe acute pancreatitis.
S56 Not What it Seems: Colitis and Pseudopolyp Turn Out To Be Immune Checkpoint Inhibitor Colitis and Metastatic Renal Cell Carcinoma
Chan, Johanna , Petrov, Jessica C , Desai, Aakash , Farraye, Francis A. , Hashash, Jana G.

American Journal of Gastroenterology | December 14, 2023 | Volume: 118 | Issue: 12S | Pages: S15-S16

10.14309/01.ajg.0000995968.88729.18 Get It