Background:Hypothermia is a frequent observation in elderly males undergoing transurethral resection of prostate (TURP) under spinal anesthesia. The use of irrigating fluids at room temperature results in a decrease body temperature. Warmed irrigating solutions have shown to reduce heat loss and the resultant shivering. Such investigation was not much tried in low resource settings.Aim:To compare the resultant change in core temperature and hemodynamic changes among patients undergoing TURP surgery under spinal anesthesia using warm and room temperature irrigation fluids.Settings and Design:Randomized prospective study at a tertiary care center.Methods:This study was conducted on 40 male patients aged 50-85 years undergoing TURP under spinal anesthesia. Of which, 20 patients received irrigation fluid at room temperature 21°C and 20 patients received irrigation fluid at 37°C after random allocation. Core temperatures and hemodynamic parameters were assessed in all patients at preoperative, intra-operative, and postoperative periods. Intra-operative shivering was also noted in both groups.Statistical Analysis:Unpaired and Paired Student's t-test.Results:For patients who underwent irrigation with fluid at room temperature Core temperature drop from 36.97°C in preoperative to 34.54°C in postoperative period with an effective difference of 2.38°C. Among patients who received warmed irrigation fluid at 37°C had core temperature drop from 36.97°C to 36.17°C and the effect of fall was 0.8°C. This difference was statistically significant (P < 0.001). Shivering of Grades 1 and 2 was observed in nine patients, of Group 1 while only three patients had Grades 1 and 2 shivering in Group 2. The hemodynamic parameters were similar in the two groups and did not reach significant difference.Conclusion:Use of warm irrigation fluid during TURP reduces the risk of perioperative hypothermia and shivering.

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Cite this articleKumar R, Asthana V, Sharma JP, Lal S. Effect of the irrigation fluid temperature on core temperature in Transurethral resection of prostate patients under spinal versus general anaesthesia. ABSTRACTCopyright 2018 by Asthana V. This is an open-access article distributed under Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows to copy, redistribute, remix, transform, and reproduce in any medium or format, even commercially, provided the original work is properly cited. Study DesignProspective, randomized control trial. ObjectivesTo evaluate and compare the effect of warm and unwarmed irrigation fluid and anaesthetic technique on core temperature in patients undergoing Transurethral resection of prostate. Summary of Background DataMaterial and Methods: The present study was conducted in 80 patients belonging to age group18-75 yrs of posted for TURP under general anaesthesia or spinal anaesthesia. Group A: General Anaesthesia with irrigation fluid at room temperature. Group B: GeneralAnaesthesia with irrigation fluid at 37 °C. Group C: Spinal Anaesthesia with irrigation fluid at room temperature. Group D: Spinal Anaesthesia with irrigation fluid at at 37 °C. ResultsAmongst the four Groups, all the subjects showed consistently reduced core temperature which was statistically significant (p<0.05) at all time intervals. Core temperatures were lower in the group receiving unwarmed irrigation fluid compared with the prewarmed irrigation fluid group at the end of surgery. The mean decrease in core temperature at the end of surgery 4.Use of prewarm irrigation fluid resulted in lesser drop in core temperature as compared than that receiving unwarmed irrigation fluid. The drop was relatively least in patients under general anaesthesia.