24-Hour pH-Impedance Study in Delhi
This study records acid and non-acid reflux over 24 hours while you carry on with normal activities, and correlates each episode with your symptoms. It is the test that tells whether heartburn on PPIs is uncontrolled acid, non-acid reflux, or a hypersensitive oesophagus — three problems with three different treatments.
Catheter pH-impedance
A thin catheter passed through the nose sits in the oesophagus for 24 hours, connected to a pocket recorder. You eat normally, record symptoms and sleep at home.
Wireless capsule pH (Bravo-type)
A small capsule clipped to the oesophageal lining during endoscopy records pH for 48–96 hours with no catheter; it detaches and passes naturally.
When it is needed
Reflux symptoms not responding to PPIs, atypical symptoms (cough, hoarseness, chest pain), before anti-reflux surgery, and to decide whether long-term PPIs can be stopped.
Interpretation
Acid exposure time, number of reflux events, symptom association and newer metrics (MNBI, PSPW) are analysed and explained with a clear plan.
Conditions this helps diagnose or treat
GERD (Reflux Disease)
Chronic reflux, confirmed and controlled
Symptoms, tests & treatmentHeartburn
Chest burning — reflux or something else
Symptoms, tests & treatmentAcidity & Acid Reflux
Frequent burning that keeps coming back
Symptoms, tests & treatmentDifficulty Swallowing (Dysphagia)
Food sticking, achalasia, strictures
Symptoms, tests & treatmentWhy patients choose Dr Paliwal for 24-hour ph-impedance study
- Trained at India's best: MD from Lady Hardinge, DM Gastroenterology & Hepatology from SGPGI Lucknow, SCE Gastroenterology (UK), advanced endoscopy training in Japan.
- 22+ years at Medanta, Artemis and PSRI — the complex cases other doctors refer.
- Delhi's first luminal GI & motility lab — breath tests, manometry, pH studies and biofeedback done in-house, not outsourced.
- No unnecessary tests. The phrase patients use most in 265+ Google reviews.
Questions about 24-hour ph-impedance study
Do I stop my acid medicine for the test?
Usually yes, 7 days before, unless the question is why symptoms persist on treatment — Dr Paliwal will specify.
Is it uncomfortable?
A mild awareness of the catheter; most patients manage work and sleep normally.
Other procedures
Upper GI Endoscopy
Camera examination of food-pipe, stomach and duodenum — with biopsy and treatment in the same session
How it worksColonoscopy
Full examination of the large intestine with polyp removal in the same sitting
How it worksERCP
Endoscopic treatment of bile-duct stones, jaundice and blockages — no open surgery
How it worksCapsule Endoscopy
Swallow a pill camera to photograph the whole small intestine — no sedation, no tube
How it worksAsk about 24-hour ph-impedance study at PSRI or the CR Park clinic.
Send your reports on WhatsApp; the team will tell you whether this test is needed and what to prepare.