To evaluate the specificity and the historical trends of the anesthetic agents and anesthetic methods used in Chungnam National University Hospital, anesthetic experiences of 21, 595 in total performed at Chungnam National University Hospital from January 1977 to December 1986were analyzed stastically and clinically according to age, sex, surgical department, physical status, elective and emergency surgery, premedicants, induction agents, anesthetic methods, main anesthetic agent, anesthetic technique and muscle relaxants.
The results were as follows :
1. The number of cases has been steadily increased. Considerable increase in the cases has been ·noted since 1985, when Chungnam National University Hospital was enlarged.
2. The distribution of the number of patients according to the age were 15,332 cases (70.9%)in the group of 16-60 years.
3. There were 12,109 male (56.1%) and 9,486 female (43.9%) cases.
4. 6,128 cases (28.4%) were in general surgery, 4,276 cases (19.8%) in orthopedic surgery, 3,138 cases (14.5%) in OB-GY and 1,888 cases (8.7%) in ENT in order of numbers.
5. According to the ASA classification of physical status, most of the cases were belonged to the class 1 (33.9%) class 2 (26.6%), class 1E (14.2%) and class 2E (12.5%). Almost cases were relatively in good physical status.
6. The rate of elective to emergency was 66.5% (14,370 cases) to 33.5% (7,225 cases).
7. As premedicants, a group of atropine, diazepam and hydroxyzine (33.4%) was given most frequently. Recently, glycopyrrolate has been used increasingly.
8. Thiopental sodium has been mainly used for intravenous induction agent.
9. General anesthesia has been used as the main method of anesthesia.
10. Halothane was the most commonly used anesthetic agent. Since 1979, the use of enflurane has teen increased yearly.
11. The semiclosed circle breathing system was mainly employed.
12. Succinylcholine was given to most cases. Pancuronium was the most commonly used nondepolarizing muscle relaxant. Vecuronium has teen used since 1986.
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