Why Do Patients with Haemorrhoids Benefit from Lord’s Procedure?
It has often been demonstrated that manual anal dilatation in patients suffering from haemorrhoids with high basal anal sphincter pressure provides good therapeutic results. Hancock and Smith (1975) found that ultra slow waves were pathological contractions of the anal sphincter in patients with piles or fissures and that these waves had disappeared after an anal stretch. But this does not explain why reduction of pressure is so beneficial. In an attempt to find a clue to this finding, we tried to estimate the change in quantity of blood within the tissue surrounding the anal canal, before and after Lord’s procedure.
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