Haemorrhoids treated by cryotherapy: a critical analysis.

One hundred and four patients with second, third degree or thrombosed prolapsed piles, treated by cryotherapy, were studied pre- and postoperatively. A computer analysis was made of all relevant data such as pile mass, freezing time and results of treatment. The method, which is easy to perform and cost effective, is aided by the use of a specially insulated speculum. To minimise complications such as pain and haemorrhage the ice-ball should be limited to the mucosal part of the haemorrhoid alone. Careful selection of patients will produce good results and a low recurrent rate. It is suggested that valium, fortral and, where necessary, a local anaesthetic should be used and that the patients remain in hospital for one night.