Clinical Survey of Hypertensive Patients During Anesthesia

Among 8142 patients who underwent anesthesia at Ewha Womans University Hospital from January 1976 to December 1980 statistical analysis for the hypertensive cases was carried out with the following results. 1) Generally speaking, number of hypertensive patients who underwent surgery was increasing. 2) Percentages of hypertensive patients between man and woman didn't differ significantly. Hypertensive cases were most abundant in 4th decade. 3) Hypertensive cases were most abundant in general surgery. 4) Before the operation, most of the patients were in ASA Class I-II physical status, and majority of cases were elective operation. 5) The majority of pre premedications were meperidine and atropine sulfate. 6) As the anesthetic method, general anesthesia was the most abundant. 7) Thiopental sodium was the most frequent inductive agent. 8) Balanced anesthesia using diazepam and meperidine as main anesthetic agent was the most frequent. 9) Abnormal findings of EKG monitoring shows the most frequent left ventricular hypertrophy. 10) In 8.5% in hypertensive pts, cardiovascular disease was suspected by chest X-ray finding. 11) Borderline and mild hypertsions were abundant. 12) In general anesthesia, blood pressure increased after induction of anesthesia, and returned to normal after operation. 13) In spinal anesthesia, Blood pressure didn't change appreciably after induction of anesthesia, and decreased slightly after operation, 14) In the complication after anesthesia, hypotension was frequently observed.