Vol. 9, Issue 4, Part B (2025)

Background: Transurethral resection of the prostate (TURP) requires continuous bladder irrigation, and the temperature of the irrigating solution may influence a case’s thermal balance. Under spinal anesthesia, the normal thermoregulatory responses are dampened, making cases more prone to perioperative drops in body temperature and related cardiovascular disturbances.

Objective: To compare the effects of warmed versus room-temperature irrigation fluids on intraoperative core temperature and hemodynamic variables in cases undergoing TURP with spinal anesthesia.

Methods: This prospective randomized study included male cases scheduled for elective TURP. Participants received either irrigation fluid warmed to approximately 37 °C or fluid at ambient room temperature (20-22 °C). Core temperature, blood pressure values, mean arterial pressure, and heart rate were monitored from baseline and at 10-minute intervals throughout the operation. Episodes of hypothermia (temperature <36 °C), shivering, and any hemodynamic interventions were recorded.

Results: Use of room-temperature irrigation fluid resulted in a more pronounced decline in core temperature compared with warmed fluid. Hypothermia and shivering occurred more frequently in the room-temperature group. Although both groups experienced some reduction in mean arterial pressure, the room-temperature group showed a greater drop and required more vasopressor support.

Conclusion: Employing warmed irrigation fluids during TURP under spinal anesthesia helps maintain normothermia and limits undesirable hemodynamic changes. Routine warming of irrigation solutions may enhance intraoperative stability and case comfort.