Heartburn Flashcards
Definition of heartburn:
burning sensation in the stomach or lower chest that rises up toward neck and occasionally to the back
Heartburn is described as…
- indigestion
- sour stomach
- bitter belching
Heartburn is a common symptom of…
gastroesophageal reflux disease (GERD)
Dyspepsia is…
- feeling full after eating a small amount of food
- epigastric pain
- epigastric burning
Pathophysiology of heartburn and dyspepsia:
esophageal defense mechanisms to help protect mucosa from damage
Lower esophageal sphincter (LES) provide a…
physical barrier against gastric contents being refluxed into the esophagus
LES will relax when…
one is swallowing to allow things to go into the stomach
Risk factors for heartburn:
- food
- lifestyle
- medications
- medical conditions
Why are chocolate, peppermint, and fatty food a risk factor for heartburn?
they decrease LES pressure, which leads to increased reflux
Why are citrus, tomato-based, and spicy foods a risk factor for heartburn?
they can irritate inflamed esophageal mucosa
How does smoking contribute to heartburn?
it relaxes LES pressure and decreasing salivation
How does obesity contribute to heartburn?
it increases intra-abdominal pressure
What are some lifestyle risk factors, excluding smoking and obesity?
- tight fitting clothes
- lying on your back
- stress
- pregnancy
Which medications decrease LES pressure and increase reflux?
- theophylline
- morphine
- Ca2+ channel blockers
- diazepam
Which medications can cause dyspepsia through direct gastric mucosal injury, or changes to GI function?
- iron
- antibiotics
- narcotics
- digoxin
- estrogens
- theophylline
- NSAIDs
What medical conditions contribute to heartburn?
- motility disorders
- PUD
- Zollinger-Ellison syndrome
Heartburn is more frequently noted within…
one hour after eating
- especially after a large meal or indigestion
Why does lying down or bending over make heartburn worse?
it can cause regurgitation, which allows acidic fluid in back of throat
- no abdominal contractions
If you have heartburn that occurs two or more times, then it is suggestive of…
GERD
Exclusions to self treatment:
- dysphagia: difficulty swallowing
- odynophagia: painful swallowing
- upper GI bleeding
- unexplained weight loss
- continuous nausea, vomiting, or diarrhea
- severe stomach pain
- chest pain or shoulder, arm, or neck pain (sign of heart attack)
- heartburn or dyspepsia for > 3 months
Types of pharmacologic treatments:
- antacids
- histamine type 2 receptor antagonists (H2RAs)
- combo of antacid and H2RA
- proton pump inhibitors (PPI)
Antacids and H2RAs are recommended for individuals with…
mild, infrequent heartburn and dyspepsia
Antacids provide…
rapid relief of symptoms w/in 5 minutes
Antacids lasts for…
20-30 minutes
H2RAs are preferred to an antacid when individuals with mild-moderate heartburn need…
more prolonged relief of symptoms
Onset of H2RAs:
30-45 minutes
- longer than antacids
Duration of H2RAs:
4-10 H
How can H2RAs be used to prevent heartburn?
should be taken 30 min to 1 hr before anticipation of heartburn
What is the benefit to combo products?
there is quick relief along with longer duration of action
Onset of combo product:
less than 5 min
Duration of combo product:
8-10 H
When do you use PPIs?
frequent heartburn or when patients don’t respond to H2RAs
PPIs should be limited to a duration of…
14 days and retreatment to every 4 months
Onset of PPIs:
2-3 H
Duration of PPIs:
12-24 H
- first time might need up to 4 days for complete relief of symptoms
What are non-pharmacologic therapies for heartburn?
dietary and lifestyle modifications
Examples of dietary and lifestyle modifications:
- weight loss if overweight
- wear loose-fitting clothing
- elevate head of bed
- eat smaller meals
- don’t eat within 3 H of going to bed/lying down
- limit alcohol and caffeine
Dosing of antacids can be repeated within…
1-2H if need be
Antacids contain at least one of the following salts:
- magnesium
- aluminum
- calcium carbonate
- sodium bicarbonate
Antacids with magnesium can lead to…
dose related diarrhea
Antacids with aluminum can lead to…
dose related constipation
- can lead to hypophosphatemia
Antacids with calcium can lead to…
constipation
Antacids with sodium bicarbonate can lead to…
fluid overload
Which have a faster onset, liquid or tablet antacids?
liquid antacids b/c they’re already dissolved and provide maximal surface area for action
Antacids can potentially decrease absorption of medications such as…
- iron
- azithromycin
- fluoroquinolones
- tetracyclines
- ketoconazole
- should separate doses by 2 H
Examples of antacids:
- alka-seltzer: sodium bicarb
- mylanta: magnesium+aluminum or calcium
- tums: calcium carbonate
- rolaids: calcium+magnesium
T/F: H2RAs should be taken every day
F, should take it PRN b/c tolerance can develop
Which H2RA should you avoid?
cimetidine (Tagamet) b/c several drug interactions
Examples of H2RAs:
- famotidine
- ranitidine
- cimetidine
PPIs are considered a…
last resort
Since PPIs inhibit proton pumps that actively secrete acid, PPIs would be most effective when taken…
30-60 min before meal, preferably before breakfast
Self treatment with PPIs should be limited to…
14 days and no more frequently than every 4 months
Chronic use of PPIs has the potential to…
impair natural defenses and increase risk of infection
PPIs can cause reduced gastric acid secretion, which can decrease…
calcium absorption
Decreased calcium absorption leads to…
increased bone fractures > 50 YO
Calcium citrate is the preferred calcium supplement form for patients on PPIs b/c…
it doesn’t require acid environment for dissolution
Examples of PPIs:
- omeprazole
- lansoprazole
- esomeprazole
Dosage for all PPIs:
1 capsule 30-60 minutes before morning meal and take QD for 14 days
If under 2 YO w/ mild infrequent heartburn, they can take…
calcium carbonate containing antacids
H2RAs are indicated for patients ages…
12 YO and older
PPIs are indicated for patients ages…
18 YO and older
Patients with decreased renal function should be cautioned about using…
aluminum and magnesium antacids, PPIs
- if H2RAs is appropriate, then lower dose should be selected
Pregnant women should initially try…
dietary and lifestyle modifications
What are some medically safe options for pregnant women?
- calcium and magnesium containing antacids
- ranitidine
- omeprazole
- esomeprazole