Word: ultracold
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Dates: during 1960-1969
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...U.C.L.A. go in through the nasal passages and the sphenoid bone that lies behind them. First, the patient's head is clamped in a stereotactic device that enables the surgeons to take bearings in three dimensions. Then the surgeons saw through the intervening bone and insert the ultracold cannula. Dr. Rand found that temperatures as low as -70° C. maintained for as long as 17 minutes had no appreciable effect on the stubbornly resistant pituitary. So he dropped the temperature inside the gland to between -170° C. and -190° C. With a probe-or sometimes with...
...RETINAL DETACHMENT. In two years, surgeons at New York Hospital have used ultracold for 150 patients to "re-glue" the retina to the back of the eye ball after it has become detached (for reasons unknown), a condition that may quickly lead to blindness. By one of science's quirks, another recent treatment for retinal detachment involved use of the laser beam to produce a pinpoint of tremendous heat...
...UTERUS. In many cases of excessive bleeding from the endometrium (lining of the uterus) caused by tumors, application of ultracold through a larger cannula for two to ten minutes will usually destroy the tumors and thus make a hysterectomy unnecessary, reports Dr. Cahan. He also suggests using cryosurgery instead of "tying off the tubes" to sterilize women who, for medical reasons, must have no more children. The procedure takes two minutes...
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