NORMAL MEASUREMENTS OF PRESSURE IN ANAL CANAL DURING SPHINCTEROMETRY ON S4402 MSM AND WMP SOLAR GI DEVICES

Area of Science:

• Gastroenterology and Colorectal Surgery
• Physiology
• Medical Device Technology

Background:

• Anal canal pressure measurement is vital for diagnosing anorectal disorders.
• Standardized reference values are needed for accurate interpretation of sphincterometry data.
• Existing data may vary due to different devices and methodologies.

Purpose of the Study:

• To determine and compare normal anal canal pressure measurements obtained via S4402 MSM and WPM Solar GI sphincterometry devices.
• To establish reference ranges for resting and contraction pressures in healthy adults.

Main Methods:

• A cohort of 126 patients with colonic polyps, excluding those with anal incontinence or defecation disorders, was studied.
• Seventy-three patients underwent assessment using the S4402 MSM device.
• Fifty-three patients were evaluated with the WPM Solar GI device.

Main Results:

• S4402 MSM device showed distinct pressure ranges for males and females, with males exhibiting higher mean and maximal pressures during rest and contraction.
• WPM Solar GI device provided pressure ranges for males and females, indicating significant pressure variations during voluntary contraction, coughing, and straining.
• Both devices demonstrated differences in pressure readings between sexes and under various physiological conditions.

Conclusions:

• Normal anal canal pressure values vary between males and females.
• The S4402 MSM and WPM Solar GI devices yield different, yet valuable, data for anal sphincter function assessment.
• These findings contribute to a better understanding of normal anorectal physiology and aid in diagnosing dysfunction.