COMMENTARY
pH monitoring
Capsule pH monitoring: is wireless more?
Correspondence to:
Correspondence to:
Dr R Holloway
Department of Gastroenterology, Royal Adelaide Hospital, North Terrace, Adelaide, SA 5000, Australia; rhollowa@mail.rah.sa.gov.au
Wireless pH monitoring is a significant advance for intraluminal pH recording. It will provide more meaningful data for evaluation of patients and, hopefully, more discriminative diagnosis
Keywords: gastro-oesophageal reflux disease; pH monitoring; diagnosis; ambulatory recordings; reflux events
| The first 150 words of the full text of this article appear below. |
Since its introduction in 1974,1 ambulatory oesophageal pH monitoring has secured a valuable but complementary role in the diagnosis of gastro-oesophageal reflux disease. Monitoring of oesophageal pH allows not only the detection of excessive levels of acid exposure but also, and more importantly, assessment of the relationship between acid reflux and symptoms. It is especially useful for clarification of the diagnosis in patients with typical or atypical reflux symptoms who do not response to empirical therapy with a proton pump inhibitor, and for assessment of the level of acid suppression in patients with refractory symptoms or oesophagitis despite appropriate antisecretory therapy.2,3
The traditional method of pH monitoring uses a pH electrode mounted on a catheter that is passed transnasally into the oesophagus and positioned 5 cm above the manometrically defined upper border of the lower oesophageal sphincter. The catheter is connected to a portable data logger thereby allowing
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