Digestive manometry evaluates the movement of the esophagus and rectal sphincter.

There are diseases whose affectation is precisely the alteration in the motility of these organs and hence the importance of this study.

The test consists of introducing a thin catheter into the esophagus through the nose. To assess swallowing motility, the patient is asked to take a few swallows of water. The study lasts between 10 and 15 min.

When evaluation of the rectum is of interest, a shorter and slightly thicker probe is inserted through this orifice. The examinee is requested to contract and relax movements of this sphincter.

High Resolution Manometry is the new diagnostic tool for the evaluation of motor disorders of the digestive tract, displacing the previous perfusion and solid state systems.

It consists of a catheter with 36 circumferential sensors, which allows a very precise topographic analysis of pressure and provides more detailed information on esophageal and rectal function.