Treatment of Haemorrhoids by Infrared Thermocoagulation
Thermal methods for the treatment of haemorrhoids have been used for many hundreds of years, ranging from heating, using various forms of cautery or heater probe, to freezing, as in cryotherapy. Most coagulation procedures, including the infrared technique, cause tissue coagulation by the action of heat increasing the temperature of the tissue. Historically speaking, infrared coagulation developed as a spin-off of medical laser technology. Both infrared and laser photocoagulation have decided advantages over procedures that use high-frequency electric current. Diathermy electrocoagulation uses the human body as the electrical conductor and a dissipater or neutral electrode is therefore necessary in most cases. Due to the variation in water content causing irregular distribution of electrolyte conductors in the tissue, it is not possible to predict the depth of necrosis when using electrocoagulation. In rare cases, burning may occur at areas of the body away from the point of application, where several current paths converge. In addition, metallic coagulation probes tend to adhere to the tissue.
KeywordsLaser Photocoagulation Rubber Band Ligation Heater Probe Tissue Coagulation Historically Speaking
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