The internal sphincter and Lord's procedure for haemorrhoids.

  title={The internal sphincter and Lord's procedure for haemorrhoids.},
  author={Brian Hancock and Kylie Sher{\'e}e Smith},
  journal={The British journal of surgery},
  volume={62 10},
Anal pressure and motility have been measured in 56 patients with haemorrhoids and 40 asymptomatic subjects. The anal pressure of patients with haemorrhoids (93-6 cm H2O) was very significantly higher than that of the controls (66-8 cm H2O; P less than 0-001). Ultra-slow pressure waves (amplitude 25-100 cm H2O, frequency 0-9-1-6/min) were present in 39 per cent of patients with haemorrhoids, but in only 7-5 per cent of the controls (P less than 0-001). Ultra-slow waves are present under… CONTINUE READING

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