Intestinal Rehabilitation Webinar
With Dr. Michael Helmrath & Dr. Paul Wales · hosted by Dr. Em Gootee
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Educational content from recorded physician discussions — not medical advice. Talk to your (or your child's) care team about your situation.
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What the experts said
Residual bowel should be expressed as percentage of expected gut length for age, not absolute centimeters, especially in young children.
A term baby has 160 cm of small bowel at birth; by age 5 it triples to 425–450 cm.
Necrotizing enterocolitis (NEC) patients, who are fed before their event, often have better prognosis with very short bowel than gastroschisis or in-utero volvulus patients.
The distal ileum and right colon are more important than the ileocecal valve per se, because they produce GLP-2, GLP-1, PYY, and reclaim bile salts.
In a newborn with questionable bowel viability, leaving islands of bowel protected by proximal diversion often allows recovery; the baby rarely becomes critically ill from retained ischemic segments if source control is achieved.
A retrograde tube (e.g., Blake drain) placed in the proximal jejunum and brought out through the abdominal wall provides better control than a stoma, avoids loss of bowel length at takedown, and reduces wound complications.
Interrupted nylon skin closure with bismuth-impregnated (Xeroform) dressing reduces wound complications in neonates compared to layered absorbable suture closure.
Breast milk is the preferred first feed for its growth factors (EGF), immunoglobulins, and oligosaccharides that promote gut development.
Protein absorption is the best-maintained macronutrient even in ultra-short bowel syndrome; free amino acid formulas offer no absorption advantage over intact protein, only allergy protection.
Volume tolerance (not calorie concentration) is the key early goal; high initial stool output is expected as the gut learns to reclaim fluid, and stopping feeds prevents adaptation.
Serum CO2 <20 is a reliable marker of impending dehydration from high stool losses.
Intestinal adaptation does not occur without enteral nutrition; even GLP-2 analogs (teduglutide) do not work in the absence of enteral feeds.
Medium-chain triglyceride (MCT) formulas do not stimulate GLP-2 release as effectively as long-chain triglycerides (LCT); MCT is absorbed predominantly via lymphatics (not bloodstream), accelerates transit, and does not promote the same adaptive drive.
Formulas with predominant long-chain fat (e.g., Elecare) are preferred over MCT-predominant formulas (e.g., Alfamino) to drive adaptation and reduce diarrhea.
SMOFlipid should be dosed at ≥2 g/kg/day to avoid essential fatty acid deficiency (EFAD); doses <2 g/kg risk EFAD, especially when enteral nutrition is minimal.
The triene:tetraene ratio for diagnosing EFAD must be interpreted in the context of the lipid emulsion composition; SMOFlipid's higher oleic acid content can elevate the numerator without true mead acid production.
Zinc deficiency is common with high stoma output and is associated with low alkaline phosphatase and perineal rash; TPN should include adequate micronutrients.
Lipids should comprise 20–35% of total calories in a balanced TPN prescription.
Urine electrolytes change faster than serum electrolytes and allow assessment without additional blood draws; pre-hookup labs (when the patient is most dehydrated) are more informative than morning labs.
Urine sodium >30 mEq/L is considered adequate; when urine potassium exceeds urine sodium, the patient is volume-depleted and has activated the renin-angiotensin-aldosterone axis.
Adding 1–2 mEq/kg/day of sodium to enteral feeds improves uptake of sugars and protein in the gut lumen.
A sudden increase in stoma output in an established stoma is often the first sign of a stricture.
Solid foods and complex carbohydrates (rice, potato, pasta, green beans) help bind stool and improve tolerance better than liquid formulas.
Loperamide can be dosed up to 1 mg/kg/day (max 18 mg/day or 6 mg TID) in children; liquid formulations often contain carbohydrate carriers that worsen diarrhea, so tablets are preferred.
Proton pump inhibitors are useful in the first 6–12 months post-resection because patients are hypergastrinemic with increased acid production and rapid gastric emptying, which can worsen malabsorption.
Soluble fiber (pectin, oatmeal, green bananas) requires colon in continuity to be effective; colonic bacteria metabolize it into short-chain fatty acids, improving water and energy absorption.
Continuous metronidazole in the absence of documented bacterial overgrowth can suppress colonic microbiome, reduce short-chain fatty acid production, and paradoxically increase stool output.
Bacterial overgrowth is uncommon in patients with only 14 cm of small bowel; clinical signs (gas, high output, line infections) should guide antibiotic use, not empiric continuous therapy.
When a patient is not progressing on enteral feeds despite normal contrast studies, a mechanical problem (stricture, malrotation, mesenteric defect) is more likely than primary dysmotility and warrants operative exploration.
Silicone catheters are more supple and easier to coil/dress; polyurethane catheters resist breakage but are stiffer, kink more, and may dislodge more often.
Ethanol locks can be used in polyurethane lines; although tensile strength decreases slightly, the forces required to snap the line still exceed normal stresses.
Taurolidine-citrate (Kitelock, 4% tetrasodium EDTA) is antimicrobial, anti-fibrinolytic, and thrombolytic; it is licensed in Canada, Europe, and Australia and undergoing FDA trial in the US.
Single-lumen catheters have lower infection risk than multi-lumen catheters.
Left subclavian is the preferred site for long-term central venous access because it provides the longest catheter length before the child outgrows it and avoids tunneling over the clavicle.
Venous access loss is now the number one indication for intestinal transplant listing, not liver failure; patients are listed at older ages (8–11 years) with healthy livers but no IV access.
Catheters with Staphylococcus aureus bacteremia can be salvaged ~50% of the time using prolonged antibiotics (3 weeks) plus 24-hour ethanol lock as a therapeutic maneuver.
Patients with <50% small bowel but >50% colon in continuity have ~56% probability of achieving enteral autonomy, with median time 4–5 years.
Five-year survival in large intestinal rehabilitation programs now exceeds 90%; even with bowel transplant, 5-year survival is ~65%.
Quality-of-life studies show that patients and parents report their actual quality of life significantly exceeds what they were told to expect at the outset.
Prophylactic enoxaparin after a thrombotic event significantly reduces the rate of secondary thrombosis compared to stopping anticoagulation at 12 weeks.