Gastroesophageal Reflux Disease (GERD)
A chronic digestive disorder where stomach acid frequently flows back into the esophagus
Table of Contents
Overview
Gastroesophageal reflux disease (GERD) is a chronic digestive disorder that occurs when stomach acid or, occasionally, stomach content flows back into your food pipe (esophagus). The backwash (reflux) irritates the lining of your esophagus and causes GERD. While many people experience acid reflux from time to time, GERD is diagnosed when acid reflux happens more than twice a week or causes inflammation in the esophagus.
GERD affects approximately 20% of the adult population in the United States, making it one of the most common digestive disorders. The condition occurs when the lower esophageal sphincter (LES)—a ring of muscle at the bottom of the esophagus that acts as a valve between the esophagus and stomach—becomes weakened or relaxes inappropriately, allowing stomach contents to flow back up.
While GERD can significantly impact quality of life, most people can manage their symptoms through lifestyle changes and medications. However, some people may need stronger medications or surgery to ease symptoms. Left untreated, GERD can lead to serious complications including esophageal damage, bleeding, and an increased risk of esophageal cancer. Understanding and properly managing GERD is crucial for preventing these long-term complications and maintaining a good quality of life.
Symptoms
GERD symptoms can vary from mild to severe and may occur daily or intermittently:
Common Symptoms
Primary Symptoms
- Heartburn: Burning sensation in chest, usually after eating, worse at night
- Regurgitation: Sour or bitter taste from stomach acid backing up
- Dysphagia: Difficulty swallowing or feeling of food stuck
- Chest pain: Can mimic heart-related pain
Respiratory Symptoms
- Chronic cough: Especially at night
- Asthma-like symptoms: Wheezing, shortness of breath
- Laryngitis: Hoarseness, sore throat
- Pneumonia: From aspiration of stomach contents
Other Symptoms
- Dental erosion: From acid exposure
- Bad breath: Halitosis from regurgitation
- Excessive saliva: Water brash
- Feeling of lump in throat: Globus sensation
- Disrupted sleep: From nighttime reflux
Alarm Symptoms
Seek Immediate Medical Attention For:
- Difficulty or pain when swallowing
- Persistent vomiting
- Vomiting blood or material that looks like coffee grounds
- Black, tarry stools
- Unexplained weight loss
- Severe chest pain (rule out heart attack)
- Chronic cough with blood
Causes and Risk Factors
GERD occurs when the lower esophageal sphincter doesn't function properly:
Primary Causes
Lower Esophageal Sphincter (LES) Dysfunction
- Weak LES muscle tone
- Inappropriate LES relaxation
- Increased pressure on LES
- Delayed stomach emptying
Hiatal Hernia
- Upper part of stomach bulges through diaphragm
- Weakens LES function
- Common in people over 50
- Can be congenital or acquired
Risk Factors
Lifestyle Factors
- Obesity: Increased abdominal pressure
- Smoking: Weakens LES, reduces saliva
- Alcohol: Relaxes LES, increases acid production
- Large meals: Distends stomach
- Late-night eating: Lying down with full stomach
- Tight clothing: Increases abdominal pressure
Dietary Triggers
- Fatty foods: Delay stomach emptying
- Spicy foods: Irritate esophagus
- Citrus fruits: High acid content
- Tomato products: Acidic
- Chocolate: Contains methylxanthine
- Caffeine: Relaxes LES
- Carbonated beverages: Increase stomach pressure
- Mint: Relaxes LES
Medical Conditions
- Pregnancy: Hormonal changes and pressure
- Diabetes: Delayed stomach emptying
- Connective tissue disorders: Scleroderma
- Zollinger-Ellison syndrome: Excess acid production
- Gastroparesis: Slow stomach emptying
Medications
- Aspirin and NSAIDs
- Calcium channel blockers
- Certain asthma medications
- Antihistamines
- Sedatives
- Antidepressants
- Bisphosphonates
Diagnosis
GERD diagnosis typically begins with symptom evaluation and may include various tests:
Initial Assessment
Clinical Diagnosis
Often diagnosed based on symptoms alone if typical:
- Heartburn twice weekly or more
- Symptoms improve with antacids
- No alarm symptoms present
- Response to PPI trial
Diagnostic Tests
Upper Endoscopy (EGD)
Direct visualization of esophagus and stomach:
- Detects inflammation, ulcers, strictures
- Can take biopsies
- Rules out Barrett's esophagus
- Not always necessary for diagnosis
Ambulatory pH Monitoring
24-48 hour test measuring acid exposure:
- Most accurate test for acid reflux
- Correlates symptoms with reflux episodes
- Wireless or catheter-based
- Helps when diagnosis unclear
Esophageal Manometry
Measures muscle contractions:
- Evaluates LES function
- Rules out motility disorders
- Done before anti-reflux surgery
Other Tests
- Barium swallow: X-ray with contrast
- Impedance testing: Detects non-acid reflux
- PPI trial: Diagnostic and therapeutic
- Bernstein test: Rarely used acid perfusion
Treatment
GERD treatment aims to reduce symptoms, heal esophageal damage, and prevent complications:
Medications
Proton Pump Inhibitors (PPIs)
Most effective for healing erosive esophagitis:
- Examples: Omeprazole, esomeprazole, lansoprazole
- Dosing: Once daily, 30 minutes before meal
- Duration: 8-12 weeks initially
- Maintenance: Lowest effective dose
- Side effects: Headache, diarrhea, B12 deficiency
H2 Receptor Blockers
Less potent than PPIs but fewer side effects:
- Examples: Famotidine, ranitidine (if available)
- Use: Mild GERD or PPI intolerance
- Timing: Before meals and bedtime
- Tolerance: Can develop over time
Antacids
Quick relief for occasional symptoms:
- Neutralize stomach acid
- Work within minutes
- Short duration of action
- Examples: Tums, Rolaids, Maalox
Other Medications
- Prokinetics: Improve stomach emptying
- Baclofen: Reduces LES relaxation
- Sucralfate: Coats and protects
- Alginate: Forms protective barrier
Surgical Options
Fundoplication
Wrapping upper stomach around LES:
- Laparoscopic approach preferred
- For severe GERD or medication failure
- 85-90% long-term success rate
- Possible side effects: Bloating, difficulty belching
LINX Device
Magnetic ring around LES:
- Less invasive than fundoplication
- Allows normal belching and vomiting
- Not suitable for large hiatal hernias
Endoscopic Procedures
- Stretta: Radiofrequency energy to LES
- TIF: Transoral incisionless fundoplication
- MUSE: Endoscopic stapling
- Less invasive but variable results
Lifestyle Management
Lifestyle modifications are essential for managing GERD effectively:
Dietary Changes
- Avoid trigger foods: Keep a food diary
- Smaller meals: Reduce stomach pressure
- Eat slowly: Chew thoroughly
- Stay upright: 3 hours after eating
- Limit liquids with meals: Reduces distention
Sleep Modifications
- Elevate head of bed: 6-8 inches
- Use wedge pillow: Not just extra pillows
- Sleep on left side: Reduces reflux
- Avoid late meals: 3 hours before bed
- Loose pajamas: Reduce pressure
Weight Management
- Lose excess weight: Even 10% helps
- Gradual weight loss: 1-2 pounds weekly
- Exercise regularly: Avoid high-impact
- Avoid tight clothing: Especially around waist
Habit Changes
- Quit smoking: Improves LES function
- Limit alcohol: Especially red wine
- Stress management: Can worsen symptoms
- Avoid lying down after meals: Wait 3 hours
- Chew gum: Increases saliva, neutralizes acid
Complications
Untreated GERD can lead to serious complications:
Esophagitis
Inflammation of esophageal lining:
- Grades A-D based on severity
- Can cause bleeding and pain
- May lead to ulcers
- Requires PPI therapy
Esophageal Stricture
Narrowing from scar tissue:
- Difficulty swallowing solids
- Food impaction risk
- Requires dilation procedure
- May recur
Barrett's Esophagus
Precancerous cell changes:
- Found in 10-15% with chronic GERD
- Increases cancer risk 30-fold
- Requires surveillance endoscopy
- May need ablation therapy
Esophageal Adenocarcinoma
Cancer of the esophagus:
- Rare but serious complication
- Risk increases with Barrett's
- Poor prognosis if late stage
- Emphasizes need for treatment
Respiratory Complications
- Aspiration pneumonia: From refluxed contents
- Asthma exacerbation: Acid triggers bronchospasm
- Chronic cough: Persistent irritation
- Laryngeal damage: Voice changes
Dental Problems
- Enamel erosion from acid
- Increased cavities
- Tooth sensitivity
- Bad breath
Prevention
While not all cases of GERD can be prevented, risk can be reduced:
Primary Prevention
- Maintain healthy weight: Reduces abdominal pressure
- Avoid trigger foods: Know your sensitivities
- Don't smoke: Protects LES function
- Moderate alcohol: Limit intake
- Eat smaller meals: Prevents overfilling
- Good posture: During and after meals
Secondary Prevention
For those with occasional reflux:
- Early treatment of symptoms
- Identify and avoid triggers
- Regular medical follow-up
- Adherence to medications
- Lifestyle modifications
Preventing Complications
- Take medications as prescribed: Don't stop suddenly
- Regular monitoring: If Barrett's esophagus
- Report new symptoms: Early intervention
- Follow-up endoscopy: As recommended
Living With GERD
Managing GERD requires ongoing attention but allows for normal life:
Daily Management
- Medication routine: Same time daily
- Meal planning: Avoid triggers
- Symptom diary: Track patterns
- Stress management: Regular relaxation
- Exercise wisely: Low-impact activities
Social Considerations
- Dining out: Research menus, eat early
- Travel: Pack medications, plan meals
- Work: Keep antacids handy
- Relationships: Communicate needs
- Sleep partners: Explain bed elevation
Long-term Outlook
- Most people achieve good symptom control
- May need lifelong management
- Regular monitoring prevents complications
- Quality of life usually excellent with treatment
- Surgery successful for appropriate candidates
Diet and Nutrition
Diet plays a crucial role in managing GERD symptoms:
Foods to Avoid
Common Trigger Foods
- Fatty foods: Fried foods, full-fat dairy
- Acidic foods: Citrus, tomatoes, vinegar
- Spicy foods: Hot peppers, curry
- Chocolate: All forms
- Caffeine: Coffee, tea, energy drinks
- Alcohol: Especially red wine
- Mint: Peppermint, spearmint
- Carbonated drinks: Soda, sparkling water
GERD-Friendly Foods
- Lean proteins: Chicken, fish, turkey
- Complex carbs: Oatmeal, brown rice
- Non-citrus fruits: Bananas, melons, apples
- Vegetables: Green beans, broccoli, carrots
- Healthy fats: Avocado, olive oil (moderate)
- Ginger: Natural anti-inflammatory
- Alkaline foods: Almonds, fennel
Eating Strategies
- Small portions: 5-6 small meals
- Slow eating: 20-30 minutes per meal
- Stop before full: 80% capacity
- Upright position: During and after
- No bedtime snacks: 3-hour rule
When to See a Doctor
Schedule an Appointment If:
- Heartburn occurs more than twice weekly
- Symptoms persist despite OTC medications
- Difficulty or pain when swallowing
- Persistent nausea or vomiting
- Unexplained weight loss
- Chronic cough or hoarseness
Seek Emergency Care For:
- Severe chest pain (rule out heart attack)
- Choking or severe difficulty swallowing
- Vomiting blood or coffee-ground material
- Black, tarry stools
- Severe abdominal pain