Intestinal Bowel Disease Flashcards
What does the term IBD refer to?
Collective term for chronic inflammatory diseases of the intestine
including Crohn’s disease & Ulcerative Colitis
IBD is Characterized by ___________
Impact of IBD depends on the _______ and ______
Often develops at age _____
Often confused with __________
periods of remissions & exacerbations
site & extent of inflammation
15-30
Irritable Bowel Syndrome (IBS)
risk factors for IBD
Positive family history
Jewish ancestry
Caucasian
Smoking increases risk for Crohn’s Disease
Antibiotic use
Possible Dietary Risk Factors for IBD
_________ deficiency
High intake of ________
Low intake of _______________
Increased consumption of _______ and __________
High intake of ______ and low intake of __________
High intake of ______________
Vitamin D
sucrose
fruits & veg, dietary fiber
red meat and alcohol
omega-6 fatty acids
omega-3 fatty acids
ultra-processed food
What is Crohn’s Disease ?
Chronic inflammation of the mucosa resulting in ulcerations
Inflammation progresses to involve all layers of the intestinal wall
where does Crohn’s disease usually occur?
small & large intestine but can occur anywhere in the GIT
- Terminal ileum is the most common site
Disease is segmental with spared areas=> “skip lesions”
Clinical Manifestations of Crohn’s Disease
Abdominal pain
Diarrhea
Anorexia
Weight loss
Complications of Crohn’s Disease
Strictures=> obstruction
Malabsorption
Abscesses
Perianal disease
Fistulas
Possible short bowel syndrome
Increased risk of intestinal cancer
What is Ulcerative Colitis (UC) ?
Where?
Chronic inflammatory disease that causes ulceration of the colonic mucosa
Begins in the rectosigmoid area & may extend proximally to affect the entire colon (rectum almost always involved)
- usually only involves the mucosa
UC contains Deep ulcers that _____
Mucosal inflammation/destruction=> loss of _______ surface area, large volumes of ________, bleeding, cramping pain, and ______(need to empty bowel)
bleed
absorptive
watery diarrhea
tenesmus
Clinical Manifestations of UC
Crampy abdominal pain
Frequent bloody diarrhea
Dehydration
Anorexia & weight loss
Anemia
Complications of UC
Severe bleeding
Perirectal abscess
Toxic megacolon
Increased risk for colon cancer
Malnutrition in IBD is more common with _____
Malnutrition is caused by ______, _______, and _______
CD
decreased nutrient intake
malabsorption
increased enteric losses
Malnutrition further compromises digestive & absorptive function and may increase permeability of the GIT to potential ________
inflammatory agents
factors that lead to Decreased nutrient intake leading to malnutrition
Avoidance behavior
Disease-related anorexia
Iatrogenic—restrictive diets
Malabsorption of macro- & micronutrients due to:
Decreased__________
_________
____________
Secondary ________
functional absorptive surface area
Medications
Bacterial overgrowth
lactose intolerance
What can cause fat malabsorption in IBD?
Crohn’s disease
- Ileal disease
- Jejunal disease
explanation of fat malabsorption from ileal disease
decreased bile salt pool due to malabsorption or deconjugation by bacteria
explanation of fat malabsorption from jejunal disease
decreased absorptive surface area due to inflammation/disease
During periods of inflammation, there is enteric leakage of:
_____, _____, and _____
Fluid & electrolytes
Blood
Protein (protein-losing enteropathy)
micronutrient deficiencies are caused by ____, ____, and ____
decreased intake
malabsorption
food-medication interactions
fat soluble vitamin deficiency can be due to ___________ and also _________
Which vit def is most common ?
ill or jejunal resection or disease
meds - cholestyramine
vit D
Water-Soluble Vitamin Deficiencies from IBD
Vitamin B12=> malabsorption due to ileal disease
Folate=> decreased intake, sulfasalazine
Minerals & Trace Element Deficiencies and causes
Zn, K+, Mg, Cu=> diarrhea, steatorrhea
Iron=> GI bleeding
Calcium=> avoidance of dairy, corticosteroids, fat malabsorption
Additional Nutritional Consequences of IBD
Nutritional anemia
Osteoporosis & osteomalacia
Growth impairment in children
In general, energy requirements in IBD are similar to those of the healthy population
No evidence of ____________ in inactive IBD
There may be an ________ in metabolic activity at times of acute severe disease activity; however, the ______ in REE is likely offset by _______ of physical activity
Individualized—consider current nutrition status, & disease condition
_____ kcal/kg
hypermetabolism
increase
increase
reduction
30-35
FOR IBD
_____ kcal/kg
____ g/kg protein for remission
______ g/kg protein for active IBD
30-35
1
1.2-1.5
Factors that increase protein needs for IBD:
Active inflammation
Malnutrition
Post-operative healing
Infection
Corticosteroids
Enteric losses: blood, protein-losing enteropathy
Malabsorption
Fistulas
Provide fluid as per age recommendations and additional fluid to replace losses
Factors which increase fluid needs:
Enteric losses: diarrhea, high ostomy output, fistulas
Fever
Sulfasalazine
Dietary Interventions for Complications of IBD
restriction of _______ and ______
Low fiber used only for _______ to ______,
___________
If confirmed steatorrhea=> _____________
Lactose and fructose
Strictures=> to avoid obstruction
s/p intestinal resection
40-gram Low Fat Diet
Supplementation for IBD ?
If deficiencies or high risk, additional supplementation ?
MVI w/ minerals
Vitamin B12=> 1000 mcg/month IM
Calcium (if on corticosteroids or poor intake)=> 1000-1200 g/d
Vitamin D: 2000-4000 IU daily for maintenance; 50,000 IU weekly for 12 weeks for treatment of deficiency
Folate (if on sulfasalazine) => 1 mg/d
If fat malabsorption=> fat-soluble vitamins in water-soluble form
Zinc=> 220 mg zinc sulfate 1-2 times/day
For IBD If person has fat malabsorption=> recommend ____________ (e.g., Peptamen with Prebio)
More research is needed on use of ___________ (e.g., probiotics, prebiotics, omega-3 fatty acids)
partially-hydrolyzed, peptide-based with MCT oil
nutraceutical supplements
Indications if enteral nutrition need
poor appetite
malnutrition
induction of remission of Crohn’s disease in children & adolescents
EN is preferred over PN due to ______, ______, _______, and _____
lesser complications
ability to maintain GIT integrity & function
provide trophic nutrients
lower cost