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The relationship between intraoperative body temperature and thiol/disulfide balance in geriatric patients undergoing
L Kazancioglu1, S Batcik, M Arpa
1Department of Anesthesiology and Reanimation, Medical Faculty, Recep Tayyip Erdogan University, Rize, Turkey. leyla.kazancioglu@erdogan.edu.tr.
Objective:
We aimed to investigate the relationship between intraoperative body temperature and thiol/disulfide balance in geriatric patients scheduled for elective transurethral prostate resection surgery with spinal anesthesia.
Patients And Methods:
71 patients classified as categories 1 and 2, according to American Society of Anesthesiologists (ASA) classification, were included in the study. The core temperature of the patients was recorded in the operating room after monitoring, at 5 and 30 minutes after spinal anesthesia. Total thiols, native thiols, disulfide amounts, disulfide/native thiol, disulfide/total thiol, and native thiol/total thiol were calculated as percentages after monitorization (Tpreoperative) and at 60 minutes after spinal anesthesia (Tintraoperative).
Results:
The disulfide levels in the Tintraoperative period (29±8.9 mmol/L) were higher than the disulfide levels measured in the Tpreoperative period (18.2±8.8 mmol/L) (p<0.001). In the Tpreoperative period, the disulfide/native thiol (%) level was 4.6±2, while the disulfide/total thiol (%) level was 4.2±1.6. In the Tintraoperative period, the disulfide/native thiol (%) level was 8±2.3, while the disulfide/total thiol (%) level was 6.8±1.7. Native thiol/total thiol (%) levels for the Tpreoperative and Tintraoperative periods were 91.5±3.3 mmol/L and 86.3±3.4 mmol/L, respectively. A correlation was found between native, total thiol levels and patient age in the Tpreoperative and Tintraoperative periods.
Conclusions:
Oxidative stress can be reduced in geriatric patients with the possibility of developing involuntary perioperative hypothermia by regularly monitoring body temperature and applying warming techniques.
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