Inflammatory Bowel Disease Flashcards
What is Inflammatory Bowel Disease?
Inflammatory condition of the GI tract
What are the 2 primary conditions of IBD?
- Ulcerative Colitis UC
- Crohn’s Disease CD
IBS Irritable Bowel Syndrome does NOT cause inflammatory changes in bowel tissue and therefore?
Does NOT increase risk of colorectal cancer
UC is what?
MUCOSAL inflammation confined to the rectum and colon
CD is what?
TRANSMURAL inflammation affecting anywhere from the mouth to the anus
Between UC and CD, which one is more common?
UC
Crohn’s disease, is more common in what gender?
Female>Male
Ulcerative Colitis, is more common in what gender?
Male>Female
Smoking is seen as what in UC?
Smoking = PROTECTIVE
Nicotine patches can be used for symptomatic relief
Smoking is seen as what in CD?
Smoking ASSOCIATED with INCREAED frequency of CD
What medications can trigger flares in IBD?
NSAIDs
What is the pathophysiology of IBD?
- Lack of normal regulation of inflammatory cascade
- Pro-Inflammatory mediators overpower down-regulation
Abdominal pain is COMMON in which disease?
CD
UC-uncommon
Distribution in UC vs CD?
UC: continuous
CD: discontinuous
Aphthous or Linear Ulcers are COMMON in what disease?
CD
UC - rare
Rectal involvement is COMMON in what disease?
UC
CD - rare
Ileal involvement is VERY COMMON in what disease?
CD
UC - rare
Strictures, Fistulas, and Transmural Involvement are COMMON in what disease?
CD
UC - rare
Crypt Abscesses are VERY COMMON in what disease?
UC
CD - rare
Cobblestone Appearance is COMMON in what disease?
CD
UC - Absent
What are S/S of UC?
- Abdominal cramping
- Frequent BM +/- blood
- Weight loss
- Fever and tachycardia
What are the S/S of CD?
- Malaise and fever
- Abdominal pain
- Diarrhea
- Hematochezia = oozing blood
- Weight loss
Acute exacerbations followed by remission or symptom free intervals can be seen with what disease?
BOTH UC and CD
What lab results can be seen with both UC and CD?
Increased ESR and WBC
What lab results are specific to UC and used to distinguish from CD?
Decreased Hgb/HCt and Albumin
What is Proctitis UC?
Localized to the bottom
What is Left-Sided Colitis?
Localized to the bottom up to the splenic flexure
What is Pancolitis UC?
Extensive to the entire GI
70% of CD is found where?
Distal Ileum and Right Colon
What is classified as MILD UC?
<4 stools/day (+/-blood)
NO systemic complications
NORMAL ESR
What is classified as MOD UC?
> 4 stools/day (+blood)
MINIMAL systemic complications
What is classified as SEVERE UC?
> 6 stools/day (+blood)
FEVER, TACHYCARDIA, ANEMIA systemic complications
ESR >30
What is classified as FULMINANT UC?
> 10 stools/day (continuous bleeding)
TOXIC vitals/symptoms
Abdominal Tenderness, Colonic Dilation
NEED TRANSFUSION
What is classified as MILD/MOD CD?
Ambulatory
NO Alarm Symptoms
What are the alarm symptoms of CD?
- Dehydration
- Systemic Toxicity
- Weight Loss
- Abdominal Tenderness
- Mass/Obstruction
What is classified as MOD/SEVERE CD?
Fever, Weight Loss, Abdominal Pain, Tenderness, Vomiting, Obstruction, or Anemia
FAILING to respond to treatment for mild/mod
What is classified as SEVERE/FULMINANT CD?
PERSISTANT Symptoms
Systemic Toxicity despite outpatient oral corticosteroids
SEVERE Weight Loss
Rebound tenderness, intestinal obstruction, or abscess
What are Non-Pharmacologic Management Options for IBD?
- Nutrition
- Surgery
What are nutrition considerations for IBD?
- Patients commonly malnourished
- Eliminate foods exacerbating conditions
Surgery is what in UC and CD?
UC: surgery = CURATIVE –> prophylaxis against cancer
CD: surgery = NOT curative
What are pharmacologic considerations in IBD?
Active, MD, Supportive, and Adjunctive
Agents MODULATE disease process of IBD, NOT Curative and the target is to what?
Relieve Inflammation
What dictates the route and formulation of the product picked for therapy?
Location and Severity of Disease
What are adjunctive therapies?
- Antidiarrheals/Antispasmodics
- Nicotine ONLY in UC
What are the 5-Aminosalicyclic Acid drugs?
- Sulfasalazine
- Mesalamine
- Olsalazine
- Balsalazide
What are the considerations of Sulfasalazine?
CI for Sulfa Allergy
Improvement takes 4+ weeks
What are AEs of Sulfasalazine?
GI upset, aplastic anemia, rash, HA
What are counseling points of Sulfasalazine?
Impairs folic acid absorption
Take with food
What is the indication of Sulfasalazine?
UC and CD
Active and MD Dosing
What is the SOA of Sulfasalazine?
COLON
What are the considerations of Mesalamine?
Alternative to sulfasalazine
DDIs: antacids/H2RAs/PPIs
Oral vs Topical Mesalamine are used for what?
Oral = Extensive Disease Pancolitis
Topical = Distal Disease or Proctitis
Mesalamine Cap SOA and Indication
Jejunum, Ileum, Colon
UC, CD
Mesalamine Suppository SOA and Indication
Rectum
UC, reserved Proctitis
Mesalamine Enema SOA and Indication
Rectum and Distal Colon
UC, Distal Diseases and Proctitis
Mesalamine Suppository/Enema may have what effect?
May stain clothing/undergarments
Mesalamine Tablet SOA and Indication
Distal Ileum and Colon
UC, CD
Olsalazine AEs
Significant dose-dependent secretory diarrhea
Balsalazide AEs
HA and Abdominal Pain
What is the SOA and Indication of Olsalazine and Balsalazide
Colon
UC,CD
Mesalamine Suppository SOA
Rectum
Mesalamine Enema SOA
Distal Colon
Corticosteroids MOA
Modulate immune system and inhibit production of cytokines and inflammatory mediators
Corticosteroids is used for ACUTE management ONLY, where does each form work?
Rectal = Distal Disease
PO = Extensive disease not responding to oral 5-ASA
IV = Systemic complications and severe disease
What corticosteroid combo is preferred for FIRST line therapy for Mild-Mod CD CONFIDED to the TERMINAL Ileum and/or ASCENDING Colon?
Controlled release BUDESONIDE or a tapering course of PREDNISONE w or without AZATHIOPRINE
What corticosteroid therapy is preferred for patients with DIFFUSE diarrhea?
Managed by a tapering course of prednisone with or without azathioprine
What is important to note about Corticosteroids?
MUST TAPER after 2 weeks of therapy
What are counseling points for corticosteroids?
Take with food, do not stop abruptly
Hydrocortisone ENEMA Indication
UC, Proctitis or Distal Disease
Prednisone PO Indication
UC, CD 40-60 mg/day
Budesonide PO Controlled Release Indication
CD, confined to the ileum and/or right colon
Hydrocortisone IV Indication
UC,CD
Methylprednisolone IV Indication
UC,CD
What is an AE of corticosteroids?
HPA Axis Suppression, increased risk of infection
What are the Immunosuppressant indications?
- Steroid dependent patients
- Patients not responding to steroids
- Attaining remission with inadequate response to 5-ASA derivates
Immunosuppressants are used for what type of therapy?
NOT for acute relief
MAINTAING REMISSION ONLY
What are the Immunosuppressant Drugs?
- Azathioprine
- Mercaptopurine
- Cyclosporine
- Methotrexate
Azathioprine MOA
Mercaptopurine precursor antagonizes purine metabolism, synthesis of DNA, RNA, proteins, cellular metabolism = reducing proliferation of WBC/immune attacking agents
Azathioprine and Mercaptopurine Indication
UC, CD
What is something to note about Azathioprine and Mercaptopurine?
TMPT genotype or phenotype and should be performed prior to therapy
What are the DDIs of Azathioprine and Mercaptopurine?
- TNFa inhibitors
- Natalizumab
- Azathioprine
- Allopurinol
- Febuxostat
What is the MOA Mercaptopurine?
Purine antagonist which inhibits DNA and RNA synthesis; acts as false metabolite and is incorporated into DNA and RNA inhibiting synthesis
Cyclosporine MOA
Inhibits release of IL-2 resulting in reduced T-cell function
What are AEs Cyclosporine
- Hypertrichosis
- Hyperglycemia
- HTN
- Hepatotoxicity/Nephrotoxicity
Cyclosporine Indication and Dose
UC, CD
IV 4mg/kg/day
Methotrexate MOA
Folate antimetabolite that inhibits DNA synthesis
Methotrexate Indication
CD
Use after mercaptopurine or cyclosporine
What antibiotics are used in CD?
- Metronidazole
- Ciprofloxacin
MOA of antibiotics and indication in CD?
Reduce bacteria concentrations and endotoxin levels in the bowel. May also suppress cell mediated immunity
-Useful for CD of the PERINEAL area or when fistulas/abscess present
What are the AEs of Metronidazole?
- Metallic-Taste
- Disulfram-Like Reaction
What are the counseling points of Metronidazole?
Disulfram like reactions with alcohol
What are the counseling points of Ciprofloxacin?
Avoid taking with Ca2+ products, iron supplements, vitamins, dairy