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destruction of tissue by application of extreme cold; silver nitrate and solid carbon dioxide are commonly used. Uses include treatment of certain malignant lesions of the skin and mucous membranes, early removal of malignant lesions of the uterine cervix, and treatment of tumors that cannot be handled with traditional surgical techniques.
An operation using freezing temperature (achieved by liquid nitrogen or carbon dioxide) as an independent agent or in an instrument to destroy tissue.
cryosurgery/cryo·sur·gery/ (kri″o-ser´jer-e) the destruction of tissue by application of extreme cold.
The selective exposure of tissues to extreme cold, often by applying a probe containing liquid nitrogen, to bring about the destruction or elimination of abnormal cells.
cry′o·sur′geon (-jən) n.
cry′o·sur′gi·cal (-jĭ-kəl) adj.
Etymology: Gk, kryos + cheirourgos
use of subfreezing temperature to destroy tissue. Cryosurgery is performed in the destruction of the ganglion of nerve cells in the thalamus in the treatment of Parkinson's disease, in the destruction of the pituitary gland to halt the progress of some kinds of metastatic cancer, and in the treatment of various cancers and lesions of the skin. The process is also used in ophthalmology to cause the edges of a detached retina to heal and to remove cataracts. The coolant is circulated through a metal probe, chilling it to as low as -160° C (-256° F), depending on the chemical used. The moist tissues adhere to the cold metal of the probe and freeze. Cells are dehydrated as their membranes burst; eventually they are discarded or absorbed by the body. No specific postoperative nursing care is required.
cryosurgeryAmbulatory surgery A technique that uses liquid nitrogen to freeze and destroy malignancy–eg, CA of uterine cervix, prostate CA. Cf Cone biopsy, Radical prostatectomy Cardiology A technique used to modify AV node conduction in Pts with treatment-refractory AV node reentrant tachycardia See Cryotherapy.
An operation using freezing temperatures (achieved by liquid nitrogen or carbon dioxide) to destroy tissue.
cryosurgeryControlled tissue destruction by low temperatures, usually by means of cryoprobes by which cold can be applied with precision. The method is used in the treatment of PARKINSON'S DISEASE, cancer of the PROSTATE and other organs, RETINAL DETACHMENT and CATARACT removal.
In prostatectomy, the use of a very low-temperature probe to freeze and thereby destroy prostatic tissue.
n surgical operation in which a metal probe (chilled to at least −160°C) is therapeutically applied to destroyed tissue.
An operation using freezing temperature (achieved by liquid nitrogen or carbon dioxide) to destroy tissue.
the destruction of tissue by application of extreme cold. Used in the treatment of certain malignant lesions of the skin and mucous membranes, anorectal lesions and in the removal of cataracts.