Gastroesophageal Reflux Disease (GERD) & Peptic Ulcer Disease Flashcards
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Parietal cells in the epithelial lining of the stomach secrete hydrochloric acid (HCl) through the _________________________ also know as the ___________
H+/K+ adenosine triphosphatase (ATPase) pump
proton pump
The pump and secretion of HCl is stimulated by __________, __________ and _________
histamine
acetylcholine (ACh)
gastrin (a hormone which also has added role of stimulating stomach muscle contractions to aid in digestion)
Acidic gastric contents are normally prevented from backflow into the esophagus by a protective ring of muscle fibers called the ________________
(LES) lower esophagus sphincter
Patients with (GERD) gastroesophageal reflux disease have ___________________ and gastric contents can backflow into the esophagus.
reduced LES pressure
Typical GERD symptoms:
- heartburn (daytime or nocturnal)
- hypersalivation
- regurgitation of acidic contents into the mouth or throat
LESS common symptoms:
- epigastric pain, nausea, cough, sore throat, chest pain, hoarseness
Diagnosis: Is based on patient-reported symptoms
Duration
Daytime and/or nighttime
frequency (> or = to 2 times per week) & risk factors
GERD can decrease quality of life and lead to ___________, ___________ and ____________.
If a patient has alarm symptoms or there is concern for a more serious condition, _____________ can be performed to further investigate the problem.
- esophageal erosion
- strictures
- Barrett’s esophagus (abnormal cell growth in the esophageal lining which can lead to esophageal cancer)
- endoscopy
ALARM symptoms include:
odynophagia (painful swallowing)
dysphagia (difficulty swallowing)
frequent nausea/vomiting
hematemesis (blood in vomit)
black bloody stools
unintentional weight loss
Key drugs that can worsen GERD symptoms:
They worsen GERD symptoms because they can contribute to _________
- aspirin/NSAIDs
- bisphosphonates
- dabigatran
- estrogen products
- fish oil products
- iron supplements
- nicotine replacement
- steroids
- tetracyclines
lowering of the LES pressure
_____________ can increase the LES pressure
Protein rich foods
Patients should be referred for further evaluation if they DO NOT respond to lifestyle-modifications and/or __________________ or if _______________
two weeks of self-treatment with OTC products
alarm symptoms are present
Treatment should include: ____________ AND ____________
lifestyle modifications
drugs
Infrequent heartburn (< 2 times per week) can be treated with ____________________
as needed (PRN) OTC antacids or histamine-2 receptor antagonists (H2RAs)
An _______________________ of a _________________ is the initial drug treatment of choice for GERD and is used to heal any erosive esophagitis.
After _________________, treatment should be interrupted; if symptoms return, maintenance therapy is needed.
8-week coarse
Proton Pump inhibitor
8-weeks
Are there any major differences in efficacy between available PPIs (proton pump inhibitors)?
No
What drugs are NOT recommended for GERD treatment?
metoclopramide (Reglan, Gimoti)
sucralfate (Carafate)
** Are used in (PUD) Peptic Ulcer Disease**
GERD Treatment Algorithm:
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-
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- Weight loss (if overweight or recently gained weight)
- elevate the head of the bed with foam wedges or blocks
- avoid eating high fat meals within 2-3 hours of bedtime
- avoid foods/beverages that trigger reflux (patient specific):
caffeine, chocolate, acidic/spicey food, carbonated beverages
GERD Treatment Algorithm:
Initial Drug Treatment-
Proton Pump Inhibitor (PPI) once daily for 8-weeksw
- can increase to twice daily if partial response or if nocturnal symptoms are present
- STOP treatment at 8 weeks; if symptoms return, start maintenance therapy
GERD Treatment Algorithm:
Maintenance therapy-
1st line: PPI at the lowest effective dose**
Alternative: H2RAs, if there is NO erosive esophagitis and it relieves symptoms
Do NOT Use metoclopramide or sucralfate (NOT recommended)
- Weight loss has the best evidence for improvement of symptoms
** Can include intermittent or on-demand dosing
Antacids:
How do they work?
How fast do they work?
How long do they provide relief for?
- work by neutralizing gastric acid (producing salt and water) which increases gastric pH, making it more alkaline.
- Since antacids DO NOT require systemic absorption, they provide relief within minutes
- Duration of relief is short (30-60min)
Antacids containing only:
Calcium Carbonate
Tums
Antacids containing only:
calcium carbonate + magnesium
Mylanta Supreme
Rolaids
Antacids containing only:
calcium carbonate + simethicone
Phazyme
Antacids containing only:
magnesium hydroxide
Milk of Magnesia
Antacids containing only:
magnesium hydroxide + aluminum
Antacids containing only:
magnesium hydroxide + aluminum + simethicone
Mylanta Classic
Antacids containing only:
sodium bicarbonate +aspirin + citric acid
Alka-Selzer
Patients should be made aware of the serious bleeding risk if used too frequently due to aspirin**
Which antacid products are constipating?
Calcium containing
Aluminum containing
Which antacid products are diarrhea causing?
magnesium containing
Antacids combining ___________ and _________ are used to lower stomach acid w/o producing undesirable constipation or diarrhea.
Al AND mg
Alka-Seltzer contains > 500mg Na per tablet which can worsen edema in patients with heart failure or cirrhosis.
Tums
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Calcium Carbonate
class: Antacid
Indications: GERD symptoms
MOA: work by neutralizing gastric acid (producing salt and water) which increases gastric pH, making it more alkaline.
Dosage forms:
Dosing: varies based on products (4-6 times per day)*
Contraindications:
Warnings:
**aluminum & magnesium: can accumulate with severe dysfunction (NOT recommended if CrCl < 30mL/min); risk of bleeding with aspirin containing products.
Side Effects:
- unpleasant taste
Monitoring:
Pearls/Notes:
* *calcium containing antacids are preferred in pregnancy
- FAST Acting AND SHORT-acting
-Antacids: OTC
– provide relief within minutes (FAST acting)
– Duration of relief: 30-60min (SHORT duration)
Drug-Drug/Food interactions:
Mylanta
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class: Antacid
Indications: GERD symptoms
MOA: work by neutralizing gastric acid (producing salt and water) which increases gastric pH, making it more alkaline.
Dosage forms:
Dosing: varies based on products (4-6 times per day)*
Contraindications:
Warnings:
**aluminum & magnesium: can accumulate with severe dysfunction (NOT recommended if CrCl < 30mL/min); risk of bleeding with aspirin containing products.
Side Effects:
- unpleasant taste
Monitoring:
Pearls/Notes:
* *calcium containing antacids are preferred in pregnancy
- FAST Acting AND SHORT-acting
-Antacids: OTC
– provide relief within minutes (FAST acting)
– Duration of relief: 30-60min (SHORT duration)
Drug-Drug/Food interactions:
Maalox
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class: Antacid
Indications: GERD symptoms
MOA: work by neutralizing gastric acid (producing salt and water) which increases gastric pH, making it more alkaline.
Dosage forms:
Dosing: varies based on products (4-6 times per day)*
Contraindications:
Warnings:
**aluminum & magnesium: can accumulate with severe dysfunction (NOT recommended if CrCl < 30mL/min); risk of bleeding with aspirin containing products.
Side Effects:
- unpleasant taste
Monitoring:
Pearls/Notes:
* *calcium containing antacids are preferred in pregnancy
- FAST Acting AND SHORT-acting
-Antacids: OTC
– provide relief within minutes (FAST acting)
– Duration of relief: 30-60min (SHORT duration)
Drug-Drug/Food interactions:
Milk of Magnesia
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Indications:
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Drug-Drug/Food interactions:
class: Antacid
Indications: GERD symptoms
MOA: work by neutralizing gastric acid (producing salt and water) which increases gastric pH, making it more alkaline.
Dosage forms:
Dosing: varies based on products (4-6 times per day)*
Contraindications:
Warnings:
**aluminum & magnesium: can accumulate with severe dysfunction (NOT recommended if CrCl < 30mL/min); risk of bleeding with aspirin containing products.
Side Effects:
- unpleasant taste
Monitoring:
Pearls/Notes:
* *calcium containing antacids are preferred in pregnancy
- FAST Acting AND SHORT-acting
-Antacids: OTC
– provide relief within minutes (FAST acting)
– Duration of relief: 30-60min (SHORT duration)
Drug-Drug/Food interactions:
Alka-Seltzer
class:
Indications:
MOA:
Dosage forms:
Dosing:
Max dose:
Contraindications:
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Monitoring:
Pearls/Notes:
Drug-Drug/Food interactions:
class: Antacid
Indications: GERD symptoms
MOA: work by neutralizing gastric acid (producing salt and water) which increases gastric pH, making it more alkaline.
Dosage forms:
Dosing: varies based on products (4-6 times per day)*
Contraindications:
Warnings:
**aluminum & magnesium: can accumulate with severe dysfunction (NOT recommended if CrCl < 30mL/min); risk of bleeding with aspirin containing products.
Side Effects:
- unpleasant taste
Monitoring:
Pearls/Notes:
* *calcium containing antacids are preferred in pregnancy
- FAST Acting AND SHORT-acting
-Antacids: OTC
– provide relief within minutes (FAST acting)
– Duration of relief: 30-60min (SHORT duration)
Drug-Drug/Food interactions:
What type of antacids are preferred in pregnancy?
Calcium containing antacids.
Treatment Principles:
PPIs
H2RAs
Antacids
PPIs - Most effective agents, Caution with chronic use
H2RAs- Moderately effective, be careful in elderly
Antacids- Less effective for maintenance, Least effective
Which Histamine-2 receptor antagonist is available as an injection?
famotidine