Written and medically reviewed by: Assoc. Prof. Cengiz Dibekoğlu, MD, General SurgeryLast updated:
Gastroesophageal Reflux (GERD) — GERD Diagnosis
Endoscopy, pH or pH-impedance testing, and manometry clarify whether surgery is even on the table.
Not every burning chest is proven GERD. Endoscopy looks for erosive esophagitis, Barrett’s changes, stricture, or alternative diagnoses. When symptoms persist without clear erosions, ambulatory pH or pH-impedance testing objectively measures acid and non-acid reflux. Manometry maps motility before anti-reflux surgery so a fundoplication is not built on the wrong physiology. Objective testing matters before any elective anti-reflux operation is seriously considered.
Educational schematic. Some structures may be simplified or emphasized for clarity; not an exact anatomical depiction.
© Cengiz Dibekoğlu — illustrative; not for unauthorized use
Figure summary
Labeled on this figure: Tests · Staging · Biopsy.
Figure labels (English)
- Tests
- Staging
- Biopsy
Step-by-step overview
- 1
Clarify the clinical question
What diagnosis is being confirmed and what decision follows?
- 2
Choose first-line tests
Start with the test that answers the leading question safely.
- 3
Stage if needed
Add imaging or endoscopy when results would change management.
- 4
Name limitations
No test replaces exam; false reassurance is a risk.
- 5
Link to next step
Diagnosis should point to observation, medical care, or procedure.
Key points
- Key note inside
Important
This page is for education. It is not medical advice and does not replace a visit with your physician.
Frequently asked questions
Which tests matter before anti-reflux surgery?
Endoscopy, and often pH testing and manometry, confirm reflux and rule out motility problems that change the operation.
Is heartburn alone enough to operate?
No. Objective confirmation of reflux and failed optimized medical care are usually required.
What if I have dysphagia?
Food sticking needs prompt evaluation to exclude stricture or other diagnoses before elective anti-reflux surgery.
Do I need to stop PPIs for testing?
Sometimes yes for diagnostic pH studies — follow the written protocol from your team.
More chapters in this hub
GERD Symptoms
What patients notice — and which warning signs need urgent care
Anti-Reflux Surgery
Surgery: what the procedure aims to do and who it fits
GERD Treatment
Lifestyle, medicines, and surgery timing
Nutrition After Anti-Reflux Surgery
Staged diet after fundoplication
Achalasia
Dysphagia and manometry — not GERD
Appointment / info
This page is for education. It is not medical advice and does not replace a visit with your physician.
Medical editor: Assoc. Prof. Cengiz Dibekoğlu, MD · Last medically reviewed: August 2026 · English patient-education chapter.