A clinical study on anorectal manometry in patients with functional constipation

Objective To study the anorectal motility in patients with functional constipation (FC).Methods Rectal visceral perception thresholds,rectal compliance and anorectal manometry were examined in 20 patients with functional constipation and the controls.Results The anorectal resting pressure,relaxation pressure had no significant difference between two groups.Anorectal barrier pressure in FC was higher than that in healthy control(79.70±22.88,67.50±22.50,respectively).The maximum tolerance of the rectum and rectal compliance in FC were higher than that in controls(P0.01).Conclusion There were anorectal motility abnormalities in functional constipation,which might contribute to the symptom of constipation.