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
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
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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.
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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
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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
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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
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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
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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
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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…
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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
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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
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Mallory Chavannes, MD, MHSc retweeted
When the #boss of #pediatric #IBD @ericbenchimol comes calling to @ChildrensLA the #smiles come naturally!! @sickkids @malloc_doc
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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 👏🏽
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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
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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
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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!
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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
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Mallory Chavannes, MD, MHSc retweeted
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.
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Mallory Chavannes, MD, MHSc retweeted
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
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