Impedance pH Monitoring

Endoscopy Services

Our clinic provides both diagnostic and therapeutic endoscopic procedures. Dr Ong is one of few paediatric gastroenterologists in Singapore accredited to perform gastroscopy and colonoscopy in children and adolescents. To ensure the best possible care, these procedures are performed in the endoscopy suite or operating theatre in the hospital. In addition, an anaesthetist experienced in paediatric care will be present to provide sedation and/or general anaesthesia to your child during the procedure.

Endoscopy Services

Our clinic provides both diagnostic and therapeutic endoscopic procedures. Dr Ong is one of few paediatric gastroenterologists in Singapore accredited to perform gastroscopy and colonoscopy in children and adolescents. To ensure the best possible care, these procedures are performed in the endoscopy suite or operating theatre in the hospital. In addition, an anaesthetist experienced in paediatric care will be present to provide sedation and/or general anaesthesia to your child during the procedure.

Impedance pH Monitoring: Why It’s Performed

Dr Ong may use a pH Impedance diagnostic test to evaluate your child’s reflux. It measures the length of time it takes for your child’s stomach contents (acid or non-acid) come back up into his or her esophagus.

What To Expect

A thin and flexible catheter with an acid-sensitive tip is placed through the nose into the esophagus. Over a 24 hour period, the catheter measures how high the contents come up in the back of the throat. It can also tell if the stomach contents are acid or non-acid.

Minor reflux of stomach contents into the esophagus is normal, but if this happens frequently or for long periods of time, it may cause pain, vomiting or discomfort for the patient.

Got more questions? Schedule an appointment today with Dr. Christina Ong.

About Dr. Christina Ong

Senior Consultant
Paediatrician & Paediatric Gastroenterologist

“Dr Christina Ong is a senior consultant paediatrician and paediatric gastroenterologist. Her clinical expertise includes management of children with gastrointestinal conditions as well as performing endoscopic procedures. As an experienced paediatrician with more than 20 years clinical experience, she also specialises in treating children with general medical conditions”

Dr Christina Ong - Paediatrician & Gastroenterologist

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