NORMAL VALUES OF ANAL SPHINCTER PRESSURE MEASURED WITH NON-PERFUSION WATER SPHINCTEROMETER

Abstract

There are presented normal values of anal pressure at rest and squeezing measured with non-perfusion water sphincterometer S4402 by MSM ProMedico GmbH. MATERIALS AND METHODS. 73 patients with colon adenomas before polypectomy underwent sphincterometry. All patients had no any complaints of fecal incontinence and outlet obstruction (0 points by Wexner incontinence scale and 0 points by outlet obstruction our clinic scale). Male were 28 (38,4%), average age 56,2± 10,2 years, female - 45 (61,6%), average age 54,9± 13,7 years. RESULTS. Male normal values: average rest anal pressure - 52,1 ± 19,8 mm Hg, maximum rest anal pressure - 60,3 ± 21,9 mm Hg., average squeezing anal pressure - 118,2± 41,5 mm Hg, maximum squeezing anal pressure -174,2± 56,8 mm Hg. Female normal values: average rest anal pressure - 37,1 ± 15,3 mm Hg. maximum rest anal pressure - 43,8± 15,5 mm Hg, average squeezing anal pressure - 75.1 ± 29.5 mm Hg, maximum squeezing anal pressure - 99,1 ± 39,7 mm Hg. CONCLUSION. There were detected normal values of anal pressure at rest and squeezing to use in approximate assessment of anal sphincter function. To perform comprehensive evaluation with this sphincterometer, elaboration of new software is required.