Guidelines for GERD Diagnosis and Treatment
Initial Diagnosis
For patients with typical GERD symptoms (heartburn and regurgitation) without alarm features, begin empiric therapy with once-daily proton pump inhibitors without diagnostic testing. 1
Clinical Diagnosis Approach
- Typical symptoms (heartburn and acid regurgitation) have high sensitivity for GERD and allow presumptive diagnosis without testing 1
- Alarm symptoms requiring immediate endoscopy include: dysphagia, bleeding, anemia, weight loss, and recurrent vomiting 1
- The absence of heartburn does NOT exclude GERD, particularly in extraesophageal presentations 2
When to Perform Upper Endoscopy
Endoscopy is indicated in the following specific situations:
- Immediate endoscopy: Presence of any alarm symptoms 1
- After failed PPI trial: Typical GERD symptoms persisting despite 4-8 weeks of twice-daily PPI therapy 1
- Severe erosive esophagitis: After 2-month PPI course to assess healing and rule out Barrett esophagus 1
- Recurrent stricture: History of esophageal stricture with recurrent dysphagia 1
- Barrett screening: Men >50 years with chronic GERD (>5 years) plus risk factors (nocturnal reflux, hiatal hernia, elevated BMI, tobacco use, intra-abdominal fat distribution) 1
Treatment Algorithm
Step 1: Initial Empiric Therapy
- Start once-daily PPI for typical symptoms without alarm features 1
- Any PPI (omeprazole, esomeprazole, lansoprazole, pantoprazole, rabeprazole, dexlansoprazole) is acceptable as efficacy differences are small 1
- Duration: 4-8 weeks 1
Step 2: Inadequate Response
- Escalate to twice-daily PPI if once-daily dosing fails 1
- Continue for 4 weeks; therapeutic response defined as ≥75% reduction in symptom frequency 1
- If symptoms persist after twice-daily PPI for 4-8 weeks, proceed to diagnostic testing 1
Step 3: Refractory Symptoms - Diagnostic Testing
For patients failing twice-daily PPI therapy, perform pH/impedance monitoring rather than pH monitoring alone 1
Testing Strategy:
- pH/impedance monitoring off PPI is preferred for patients without prior objective GERD diagnosis 1
- This identifies acid exposure, non-acid reflux, and symptom-reflux association 1
- pH monitoring alone misses non-acid reflux episodes, leading to false negatives 1
- Only 7% of patients with typical symptoms and 1% with atypical symptoms have persistent acid exposure on twice-daily PPI 1
Extraesophageal GERD (Chronic Cough, Laryngitis, Asthma)
Consider early diagnostic testing before empiric PPI therapy in patients with extraesophageal symptoms but WITHOUT typical reflux symptoms 1
Key Differences from Typical GERD:
- PPI response is unreliable for diagnosis in extraesophageal presentations due to low sensitivity/specificity and placebo effects 1
- Symptom improvement on PPI does NOT confirm GERD as the cause 1
- 50-60% of patients with extraesophageal symptoms do NOT have GERD 1
Diagnostic Approach for Extraesophageal Symptoms:
- With typical GERD symptoms present: Trial of twice-daily PPI for up to 12 weeks is reasonable 1, 2
- Without typical GERD symptoms: Proceed directly to ambulatory reflux monitoring off PPI 1
- After failed PPI trial: Perform pH/impedance monitoring to evaluate for acid or non-acid reflux 1
- Normal endoscopy does NOT rule out GERD as cause of extraesophageal symptoms 2
Preoperative Evaluation
All patients considering antireflux surgery must undergo reflux monitoring off PPI to confirm GERD diagnosis 1
- This applies even to patients with typical symptoms responsive to PPI 1
- For atypical symptoms, testing confirms symptom-reflux relationship before surgery 1
Barrett Esophagus Surveillance
- Nondysplastic Barrett: Surveillance every 3-5 years 1
- Barrett with dysplasia: More frequent surveillance intervals required 1
- After documenting severe erosive esophagitis healing, repeat endoscopy is NOT indicated unless Barrett esophagus is found 1
Common Pitfalls
- Do not perform endoscopy in uncomplicated typical GERD responsive to PPI unless surgery is planned 1
- Do not rely on PPI response alone to diagnose extraesophageal GERD 1
- Do not use pH monitoring alone in PPI-refractory patients; pH/impedance is superior 1
- Stop PPIs 1-2 weeks before reflux testing to avoid false-negative results 1
- Dual-probe pH monitoring offers NO advantage over single distal probe for extraesophageal symptoms 1