Anal hypertonia in fissures: cause or effect?

  title={Anal hypertonia in fissures: cause or effect?},
  author={Cathy Gibbons and Nicholas W. Read},
  journal={The British journal of surgery},
  volume={73 6},
High sphincter pressures recorded in patients with fissure-in-ano have been attributed to sphincter spasm induced by wide recording assemblies. To investigate this hypothesis, anal sphincter pressure was measured using a series of perfused probes of 0.4-2 cm diameter in six men with chronic anal fissure in whom digital examination was easily tolerated. The results were compared with those from 14 normal men. The resting pressure within the anal canal exceeded the normal range in all six… CONTINUE READING