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■Simple operation for accurate diagnostic information
As eight sensors, which are placed at 6-mm intervals along the catheter for this system, cover the entire measurement area, there is no need to shift its position once the catheter is inserted.
Simply place it, and you will get a measurement more accurate than ever.

■Pressure measurement across the entire anorectal area
This system is capable of measuring both the anal and rectal regions simultaneously to assess the anal pressure distribution, squeezing pressure distribution, the relaxation or its dysfunction during simulated defecation, enabling an easy but detailed assessment of abnormal pressure distributions often seen in patients with postsurgical sphincteric disorders or outlet syndrome.  

■Easy-to-grasp Visual Images
Our pressure measurement system incorporating the PocketMonitor GMS-4000 model displays the status of contraction and relaxation represented in the form of consecutive color topography plots.
In this way, you can visually grasp the function of target organs, which was hardly seen on displayed waveforms only.

Examples of acquired pressure data measured with pressure transducers


Color contour plot showing normal water swallow
1. LES relaxation occurring immediately after bolus transit through the UES.
2. Onset of esophageal peristalsis.
3. Vigorous contraction occurring after propagated peristalsis reaching the LES.
*White arrow: increased esophageal pressure induced by water swallow.
*Black marking: increased pressure produced by contraction of diaphragm during inspiratory period.


Symptom No.3
Nutcracker Esophagus (High pressure peristalsis )
1 Consecutive peristalsis with extremely high pressure can be observed.
2 After peristalsis wave, esophageal pressure decreases and eventually returns to normal.
*White arrow: increased esophageal pressure induced by a water swallow.


Symptom No.1
1. Overview: a vertical color band can be seen on the color plot instead of a diagonal band, and the esophagus behaves as a mere empty tube.
2. Ineffective LES relaxation.
3. ★: Peristaltic pressure wave produced by esophageal striated muscle.
4. ★★: LES shifting cranially.


Symptom No.2
An example of esophageal spasm showing coinciding long pressure waves with high amplitudes.