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Specialised diagnostic studies

pH-impedance and oesophageal manometry studies

pH-impedance and oesophageal manometry are specialised diagnostic studies used to assess reflux and the function of the oesophagus.

What each study measures

  • Oesophageal manometry: measures pressure and muscle coordination within the oesophagus
  • Oesophageal manometry: assesses how effectively the oesophagus moves food and liquids
  • Oesophageal manometry: evaluates the function of the lower oesophageal sphincter
  • Oesophageal manometry: may assist in investigating swallowing difficulties and motility disorders
  • pH-impedance monitoring: measures acid and non-acid reflux episodes
  • pH-impedance monitoring: assesses how frequently reflux occurs
  • pH-impedance monitoring: helps determine whether symptoms are associated with reflux events
  • pH-impedance monitoring: may form part of an assessment before certain treatment or surgical decisions

What to expect

  1. What to expect: the studies are arranged after a specialist consultation, once it is clear which information is needed
  2. What to expect: a thin, soft catheter is passed through the nose to record measurements; manometry is completed in the rooms, while pH-impedance recording continues over a period of time
  3. What to expect: preparation instructions, including guidance on food and medication, are provided directly by the practice before your appointment
  4. What to expect: the results are explained to you at a follow-up consultation and used to guide any further management

How the findings are used

These studies are investigations rather than treatments. Not every patient requires them; they are recommended only where they will add useful information. The findings are interpreted together with your symptoms and other results before any management is advised.

This information is general and does not replace a consultation. No outcome can be guaranteed, and the approach appropriate for you is confirmed only after a full specialist assessment by Dr Motheo T. Zimba.