ArticleNeurogastroenterology and motility2021
A comparison of rectoanal pressures during Valsalva maneuver and evacuation uncovers rectoanal discoordination in defecatory disorders.
Article in Neurogastroenterology and motility, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 15 citations in OpenAlex.
- Task-Dependent Cortical Oscillatory Dynamics in Functional Constipation.Sensors (Basel, Switzerland) · 2025Article
- Inadequate Propulsion and Pelvic Floor Relaxation in Dyssynergic Defecation: Insights From Synchronous Proctomanometry.Gastroenterology · 2025Article
- Clinical relevance of transperineal ultrasound compared with anorectal manometry for the evaluation of female patients with obstructive defecation syndrome.BMC gastroenterology · 2025Article
- MR Defecography Improves Diagnosis of Postoperative Pelvic Floor Dysfunction After Gynecological Surgery.Diagnostics (Basel, Switzerland) · 2025Review
- Optimizing techniques for measuring anal resting and squeeze pressures with high-resolution manometry.Neurogastroenterology and motility · 2022Article
- Abdomino-anal Dyscoordination in Defecatory Disorders.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2022Article
- Review of the indications, methods, and clinical utility of anorectal manometry and the rectal balloon expulsion test.Neurogastroenterology and motility · 2022Review
- Inadequate Rectal Pressure and Insufficient Relaxation and Abdominopelvic Coordination in Defecatory Disorders.Gastroenterology · 2022Article
- Diagnostic Strategy and Tools for Identifying Defecatory Disorders.Gastroenterology clinics of North America · 2022Review
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
backgroundIt is suggested that patients with defecation disorders (DD) strain excessively or do a Valsalva maneuver (VM) during evacuation, resulting in rectoanal discoordination, which hinders rectal evacuation. However, definitive data are lacking.
methodsRectoanal pressures during evacuation and a VM were measured with seated high-resolution manometry (HRM) in 64 healthy and 136 constipated women with a normal (84 women, C-normal) or prolonged (52 women, C-abnormal) balloon expulsion time (BET). The number of abnormal rectoanal parameters during evacuation and the joint distribution of pressures during evacuation and a VM were used to discriminate between controls and C-abnormal BET patients. KEY
resultsThe peak anal pressure (5 s) during a VM accounted for 0%, 26%, and 49% of the variance in anal pressure during evacuation in healthy women, C-normal BET, and C-abnormal BET. The association between anal pressure during a VM and evacuation was stronger in C-abnormal BET than in healthy women and C-normal BET (p for interaction <0.001). Fifty-eight of 64 controls and 33 of 52 C-abnormal BET patients had no or one abnormal parameter during evacuation; hence, the probability of C-abnormal BET was 33/91 (36%). In patients with no or one abnormal parameter during evacuation, a logistic model based on anal pressures during evacuation and a VM discriminated between controls and patients with C-abnormal BET with a sensitivity and a specificity of 67% and 75%.
conclusionsAssessment of rectoanal pressures during evacuation and a VM uncovers rectaoanal discoordination and facilitates the diagnosis of DD in selected patients.
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