John Damianos, M.D. Profile picture
@MayoClinicGIHep Gastroenterology & Hepatology Fellow. Yale Internal Medicine, Dartmouth Med. 🦠Microbiome, brain-gut axis, diet, IBS, IBD, motility, #MedEd🇬🇷

Oct 24, 2021, 23 tweets

Functional abdominal pain (centrally mediated abdominal pain syndrome) by Dr. Brian Lacy at @AmCollegeGastro #ACG2021

#GITwitter #GI #FGID #DGBI

A common scenario!

Definitions

FAP ▶️ CAPS

@RomeFoundation IV criteria

Associated with anxiety/depression and somatization syndromes

Pathophysiology: genetic predisposition ➕ insult to the gut (e.g., infection) ▶️ visceral hypersensitivity

Can't change predisposing factors, but can work on precipitating and perpetuating factors

Bidirectional gut-brain and brain-gut contributions to pain

📜HISTORY is 🔑

⚠️Don't forget to check Carnett's sign for abdominal wall pain!

🔑 points
🔹assess psychological status
🔹ask about trauma

Differential diagnosis of CAPS

Physical examination

CAPS treatment: first and foremost, educate and reassure

Pharmacologic: neuromodulators (do NOT use opioids!)

Psychologic: CBT, hypnotherapy

Neuromodulators in CAPS

Since multiple pathways are likely involved in the pathophysiology of CAPS, drugs with multiple targets may be more effective

TCAs should be first line for CAPS

SNRIs can also be effective

SSRIs don't work directly on pain pathways, so while may help anxiety/depression, would not help much with pain in CAPS

Certain atypical antidepressants can also be helpful in CAPS

May need multiple agents in CAPS

CAPS summary from Dr. Lacy

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