The Effect of Anesthesia ( Balanced anesthesia ) and Surgery on Thyroxine and Triiodothyronine Levels in Plasma / 대한마취과학회지

ABSTRACT

This study was undertaken to investigate the effect of anesthesia(balanced anesthesia) and surgery on plasma thyroxine and triiodothyronine levels in ten surgical patients by means of the radioimmunoassay method which provides a quantitative measure of thyroid function. The sex ratio between male and female patients was 11, mean age was 30.1+/-12.26 and the average body weight was 57.38+/-15.81kg. The plasma triiodothyronine level before anesthesia and surgery was 138.1+/-32.64(ug/dl) but at 90 minutes and 120 minutes after anesthesia and surgery they were 100+/-19.64(ug/dl) and 92.4+/-7.49(ug/dl) respectively. The plasma thyroxine level remained unchanged during anesthesia and surgery. Consequently there was a statistically significant decreased level in plasma triiodothyronine but there was no change in plasma thyroxine level during anesthesia and surgery.