Endoscopy, Manometry and pH Monitoring in Hiatal Hernia
Author: Op. Dr. Gökhan Ateş · Published: 31 July 2026 · Updated: 31 July 2026
Article summary
Endoscopy is the first-line anatomic study; manometry defines motility and guides fundoplication choice; pH monitoring provides objective reflux evidence. Surgical decisions rest on all three.
Three studies drive hiatal hernia workup and surgical planning: endoscopy, high-resolution manometry and 24-hour pH / pH-impedance monitoring. Each answers a different question.
Quick answer
Endoscopy for anatomy and mucosa; manometry for motility and LES function; pH-metry for objective reflux and symptom correlation. The surgical decision combines all three.
Endoscopy
First-line test for hernia detection, LA-grade esophagitis, Barrett's screening and Cameron lesions. Always performed with alarm symptoms.
High-resolution manometry
Objectively measures peristalsis and LES pressure. Rules out achalasia and guides fundoplication choice — Toupet is favoured when peristalsis is weak.
24-hour pH / pH-impedance
Gold standard for objective reflux documentation. Indicated when endoscopy is normal but symptoms persist, with partial PPI response, and before surgery. pH-impedance also detects non-acid reflux.
Priority by presentation
- Alarm symptoms — endoscopy first
- Pre-surgical workup — endoscopy + manometry + pH-metry
- Atypical / laryngeal reflux — pH-impedance
- Suspected motility disorder — manometry
Frequently asked questions
Is endoscopy painful?
It is well tolerated, often under sedation, and allows biopsies when needed.
Who needs manometry?
All patients considered for surgery and anyone with suspected motility disorder.
Should PPIs be stopped before pH monitoring?
Usually PPIs are held for 7 days, H2 blockers for 3 days — follow your physician's instructions.
Can barium study replace manometry?
It shows anatomy but not motility function; manometry remains essential for functional workup.
Related pages
This content is for general patient information only. Diagnosis and treatment decisions should be made by a physician after examination and individual assessment.