Anorectal sensorimotor dysfunctions by symptom severity
| Severity | Reduced anal resting pressure | Reduced anal squeeze pressure | Puborectalis dysfunction* | Reduced rectal capacity | Rectal hypersensitivity† |
|---|---|---|---|---|---|
| *Anorectal angle change from rest to squeeze <5th percentile value for controls. | |||||
| †Perception threshold for desire to defecate <5th percentile value for controls. | |||||
| The only patient with mild symptoms of FI had reduced anal resting and squeeze pressures only. | |||||
| Moderate (n = 23) | 26% | 65% | 13% | 22% | 13% |
| Severe (n = 28) | 39% | 86% | 50% | 29% | 21% |