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The anal sphincter force in health and disease
1Department of Medical Engineering, Hospital for Sick Children, Toronto, Ontario, Canada.
Insights
A new objective method objectively measures anal sphincter force (ASF) in children, overcoming limitations of voluntary testing. This approach provides reliable data across various pediatric conditions.
Area of Science:
- Pediatric Surgery
- Gastroenterology
- Urology
Background:
- Assessing anal sphincter strength traditionally relies on patient cooperation, which is unreliable in pediatric populations.
- Young children and those with certain medical conditions may not provide accurate voluntary measurements of anal sphincter force.
Purpose of the Study:
- To introduce and validate an objective method for measuring anal sphincter force (ASF) in children.
- To establish a reliable tool for evaluating anal sphincter function across diverse pediatric patient groups.
Main Methods:
- Development of a novel, objective device for quantifying anal sphincter force.
- Collection of data from over 256 children, including those with Hirschsprung's disease, constipation, postoperative incontinence, spina bifida, and healthy controls.
- Testing performed on both conscious and anesthetized children to ensure broad applicability.
Main Results:
- The study successfully collected data using the objective ASF measurement method.
- Data encompasses a wide range of pediatric conditions affecting anal sphincter function.
- The method proved effective in both conscious and anesthetized states.
Conclusions:
- The devised objective method offers a reliable alternative to subjective anal sphincter strength testing in children.
- This new tool has significant potential applications in diagnosing and managing pediatric conditions involving anal sphincter dysfunction.
- Further research can explore the clinical utility and diagnostic value of objective ASF measurement.
Abstract:
The measurement of the strength of the anal sphincters has heretofore involved voluntary cooperation by the patient. In some children one cannot count on the maximum squeeze pressure being generated and in others the child is too young to understand what is required. We have devised an objective method of measuring the anal sphincter force (ASF) and have collected data derived from over 256 children over the course of 24 months. These include patients with Hirschsprung's disease, constipation, postoperative incontinence, spina bifida, and normal children both conscious and anesthetized. The results are presented and the value of the test and its applications are discussed.