1981 Volume 23 Issue 5 Pages 638-645
We recently developed a probe for cryosurgery which is inserted through the esophagegastrof iberscope. The tip of the probe is made of brass and it is 4.5mm diameter and 7mm length. The guide tube has doubel lumens and made of Teflon (Figure 1). Using liquid carbon dioxide at pressure of 20kg/cm2, the temperature of the tip becomes -63C. Applying the esophagogastroscope TCE-ID (Olympus) this probe was contacted to the mucosa of the stomach and esophagus of the dog for 3 to 5 minutes, and wounds were cured within 2 4 weeks without making any perforation (Tablel). These equipments were used clinically after the experiments. Case 1: A 57 year-old female. Figure 2 shows postoperative stage of the esophagus after esophageal dissection for varices. One month after discharge, however, she had a recurrent stenosis (Figure 3). For this patient a contact freezing method was applied 2 times in a couple of weeks about 20 minutes at one procedure (maximum 5 minuties at each contact) (Figure 4). However the stenosis recurred again after 7 weeks, and the same method was applied following bougie nage after the procedure. After bougienage (Nolaton #8) for two months the patient was dischaged without stenosis (Figure 5). Case 2: A 24 year-old male. Figure 6 shows an esophageal stenosis caused by swallowing sodium hydroxide. A cnotact freezing methode was applied for this patient for 20 minutes (Figure 7). Since a bougie could not used in this case because of previous perforation of the esphagus, the patient had to have esophago-gastrosomy eventually after temporal cure of the stenosis. It is concluded that cryosurgery using a new probe which had been developed at our institute will be effectively applied for an esophgo-cardiac stenosis which is caused from benign disease.
