The procedure takes about 45 minutes from start to finish.
The nurse will verify that you had nothing by mouth in the last 6 hours prior to the test.
Your nostril and throat is numbed with a topical anaesthetic while you are sitting upright.
A thin flexible tube about 4mm (approximately the width of a pencil) is then passed through the nostril, down the back of the throat into the oesophagus and the stomach, while the patient swallows water. The tube has holes in it that sense pressure along the oesophagus. It will be positioned so that the pressure sensors cover the entire length of the oesophagus.
With the tube inside the oesophagus, you will lie down in a comfortable position.
You will be given small sips of water during the test to record the progression of the swallow.
The contractions of the oesophageal muscle will be measured at rest and during swallows.
Pressure recordings are made over about ten minutes and this tube is removed.
The results of the manometry test are displayed as a graph with a wave pattern that can be interpreted to determine if the oesophagus is functioning normally.
We also measure impedance which allows us to detect the movement of liquid and gas which may be swallowed or refluxed from the stomach. This tell us whether your swallows are effective or not.