3-D Endoanal Ultrasound: Normative Anatomy of the Anal Sphincter in Nulliparous Females

Completed · Not applicable

Conditions studied: Normal (no Known Injury) Anal Sphincter Female Anatomy

In brief

The purpose of this research study is to measure the muscles that make up your anal sphincter (muscles that control bowel movements) by using ultrasound. The most common way for women to injure these muscles is through childbirth. Some physicians think about 30% of women delivering their first baby develop some anal sphincter damage, which may or may not lead to symptoms such as anal urgency or incontinence (involuntary loss of gas or stool). The purpose of the study is to measure muscles in normal women who have never given birth or had an injury to their anal sphincter.

Key facts

Study ID

NCT01123109

Run by

University of California, Irvine

People needed

75

Starts

2007-12-01

Expected to finish

2012-06-01

Last updated by the study team

2018-02-07

Who can join

Age: 18 and older. Sex: female. Healthy volunteers: accepted.

You may qualify if…

• nulliparous women over the age of 18.

You may not qualify if…

• any history of anal incontinence, chronic constipation, anorectal disease or trauma, neuromuscular or neuropsychiatric disease, diabetes, gastrointestinal disorders, or previous anorectal or pelvic surgeries.

Where it is running

• UCI Women's Healthcare — Orange, California, United States

Full record on ClinicalTrials.gov

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