
Pediatric gastroenterologist with focus on IBD, intestinal ultrasound and precision medicine @ChildrensLA. Daughter, wife, 🇭🇹 descent. Tweets are my own.
Los Angeles, CA
Joined December 2017
- Tweets347
- Following485
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Mallory Chavannes, MD, MHSc retweeted
If you are subscribed to ibd-eii.com you will receive after a long time an email!
🚀 Big news! ibd-eii.com has been reinvented
I’ve transformed the platform into a powerful, intuitive content database to make finding IBD drugs, trials, and evidence easier
What’s new?
• A smart, searchable database 🔍
• Easier organization and classification method
• 15+ new clinical trial summaries📚
• Updated cheat sheets 🧠
👇
#IBD #CrohnsDisease #UlcerativeColitis #Gastroenterology #MedEd
Mallory Chavannes, MD, MHSc retweeted
Hands on practice with IUS at #CCCongress2026. Giving providers the tools they need to take back to their IBD patients and bring IUS to the bedside.
Mallory Chavannes, MD, MHSc retweeted
New ESPGHAN/ECCO ASUC Consensus take-aways:
➡️VTE prophylaxis in all hospitalized pts
➡️IFX 10mg/kg-use TDM to guide dosing
➡️PJP prophylaxis in appropriate scenario: triple immunosuppression, double immunosuppression (1 CNI), steroid + low lymphocytes or JAKi #aibd2025
Mallory Chavannes, MD, MHSc retweeted
Replying to @MaiaKayalMD
@MaiaKayalMD excellent talk on Pouchitis at #AIBD2025 @AIBDNetwork
🎯Targets in the management of pouchitis - less stringent - aim for ⬆️ QofL, clinical remission, and endo improvement
🍎🥔🍠Bonus image on diet modifications suggested for pouchitis!
@GimdGold
Mallory Chavannes, MD, MHSc retweeted
🚨 Attention young faculty & trainees!
I asked these two #PedsGI @ShermanPrize success stories for one piece of advice on making meaningful progress for patients with #IBD:
Scott emphasized investing in #trainees to create a broad, lasting impact and legacy, while Mike highlighted finding #knowledgegaps—often by looking to what other fields are doing that IBD isn’t—and focusing efforts there.
That’s a pretty great roadmap. 💡🧠
#PedsGI #ShermanPrize #AIBD2025
Mallory Chavannes, MD, MHSc retweeted
🔬 New AGA guidance spotlights 💡 advanced therapies for moderate-to-severe #CrohnDisease 🚨
✅ Upfront biologics > step-up
👉 tinyurl.com/ms2yb3p7
#GITwitter #MedTwitter #IBD @AmerGastroAssn @ESGE_news @my_ueg @IBD_JohnD @IBDMD @IbdClub @DCharabaty @IBD_FloMD @IBD_docGio
Mallory Chavannes, MD, MHSc retweeted
Post-op surveillance of CD.
➡️Algorithm below from @MRegueiroMD highlighting role for IUS in post-op surveillance
➡️If you're interested in integrating point-of-care IUS post-op, please check out the following visual atlas:
pubmed.ncbi.nlm.nih.gov/4133…
#aibd2025 @iUSCAN
Mallory Chavannes, MD, MHSc retweeted
Congrats to @MichaelKappel12 on his well-deserved #ShermanPrize! 🏆 I’m sad to miss the ceremony, but want to shout out what a generous #mentor he is and what an incredible asset he’s been to all of us in #PedsIBD. 🙌 #AIBD2025
shermanprize.org/news/unc-pe…
Mallory Chavannes, MD, MHSc retweeted
At #AIBD2025, we reviewed the European ECCO-ESPGHAN pediatric CD guideline, which recommends exclusive enteral nutrition (EEN) as a first-line option for inducing remission in low-risk luminal Crohn’s. 🥤
EEN offers strong mucosal outcomes but remains socially challenging for many families, and this approach does not necessarily reflect current U.S. practice. A U.S. pediatric CD guideline is in development.
pubmed.ncbi.nlm.nih.gov/3302…
Mallory Chavannes, MD, MHSc retweeted
Antibiotic-refractory pouchitis:
➡️Not all pouch dysfunction=pouchitis
➡️Consider cross-sectional imaging for structural/inflammatory complications!
➡️growing evidence for advanced therapies, including biologics and targeted agents #aibd2025 @DrSanket_Patel
Mallory Chavannes, MD, MHSc retweeted
The "Medical Foods & Formulas Access Act" has been reintroduced! 👏@RepMcGovern @RepRutherfordFL @RepDebDingell @SenatorWicker @SenAmyKlobuchar @ChuckGrassley @SenWhitehouse for leading policy change to improve medical nutrition access for those w/ digestive & metabolic disorders
Mallory Chavannes, MD, MHSc retweeted
When the #boss of #pediatric #IBD @ericbenchimol comes calling to @ChildrensLA the #smiles come naturally!! @sickkids @malloc_doc
Mallory Chavannes, MD, MHSc retweeted
📣What impacts sustainability in IBD care the most?
We are looking to hear your opinion!
⬇️⬇️⬇️⬇️
forms.gle/EtaMUjGPn14KFHqLA
@olganardone @tommasoparigi
Mallory Chavannes, MD, MHSc retweeted
Replying to @JChristieMD
@JChristieMD shares her personal journey to Presidency @ScrubsNHeels - she leads with purpose, grace and indelible fashion. My GI journey has been stamped with women of greatness 👏🏽
Mallory Chavannes, MD, MHSc retweeted
The #ScrubsNHeels25 Break the Glass Ceiling🏆 #DrNimishaParekh
🪜Started the SAIL program to empower 👩🏻⚕️ to pursue leadership roles
💎Lessons learned
-Know if your organization supports your why
-Don’t hide,Shine
-Know who are the decision makers in your🏥
-Don’t react, reflect
Mallory Chavannes, MD, MHSc retweeted
Dr. @BenjamminGold allyship for women @ScrubsNHeels
➡️ change must be intentional- even if you’re scared
➡️Educate yourself
➡️Listen to understand not to respond
➡️Speak up, stand up& be a role model
➡️Be humble
➡️Collaborate
➡️Be aware of your biases
Mallory Chavannes, MD, MHSc retweeted
Heading down to #AIBD2024 - come by our 1st national IUS monthly live on Monday from 230-415! A live version of our monthly webinar intestinal ultrasound case discussion and demo led by Michael Winter w/@KrugCleveland @amelia_kellar and myself!
Mallory Chavannes, MD, MHSc retweeted
Join our first Live IUS Monthly session by @iUSCAN at #AIBD2024, 12/9 at 2:30pm EST. To learn more, become a member, and join future virtual IUS Monthly tele conference go to iuscan.org #Intestinalultrasound
Mallory Chavannes, MD, MHSc retweeted
Replying to @DCharabaty @ibdgijami @elrets @MondayNightIBD @EliLillyandCo @malloc_doc @GlassnerKerri @novakkerri @RuneWilkens @ColmanMD @kennethernest @SimonHongMD @ReezwanaCMD @DrNancyFu @RishikaChughMD @amelia_kellar @BowelUltrasound @IBD_DrEMF @oridamas @jensemineriomd @ibddocmaria @JoanaTo62523004
Not an IUS expert!?! Very few IBD clinicians in North America are. We developed a website @iUSCAN (iuscan.org) with > 30 curated open-access references and summaries on our learn page (iuscan.org/learn) available for download.
Mallory Chavannes, MD, MHSc retweeted
Replying to @MondayNightIBD @DCharabaty @EliLillyandCo @malloc_doc @ibdgijami @GlassnerKerri @novakkerri @RuneWilkens @elrets @ColmanMD @kennethernest @SimonHongMD @ReezwanaCMD
42 male dx ileal #Crohns w deep ulcers after 1 yr of mild abd pain + 4 loose BM/day & urgency. Started on effective therapy.
At 9 months: occ discomf. w some food & 1 formed BM/day.
🔦CLN: few aphthous ulcers in ileum
📡#IUS: moderate transmural thickening (above)
📌What’s next?
23%Continue same therapy
52%Reinduce/dose escalate
20%Change MOA
5%Ileal resection
114 votes • Final results






































