IRCT20121216011766N6 IRCT 2021-01-09 Urology Research Center, Guilan University of Medical Sciences Effect of irrigation fluid temperature on hypothermia and other outcomes of anesthesia Comparison of the effect of irrigation fluid at room temperature with irrigation fluid to body temperature on hypothermia and other intraoperative and postoperative outcomes in patients undergoing transurethral resection of prostate (TURP) under spinal anesthesia 2020-12-12 anticipated 76 Complete https://irct.ir/trial/52278 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive, Randomization description: Block randomization with blocks of size 4 with a ratio of 1 to 1 (as two groups A and B) via a online program named sealed envelop/randomisation, Blinding description: One of the researchers (anesthesia resident) will allocate serums to patients in two groups A (serum at room temperature) and B (serum heated to body temperature 37 degrees) based on a table prepared from random blocks. Neither the patient nor the evaluator is aware of the type of serum assigned to the surgery. At the top of the checklist which be completed for each patient, the group type (A or B) will be recorded. N/A Hypothermia. Intervention 1: Intervention group: Irrigation fluid (normal saline 0.9%) warmed to body temperature (37 degrees) using boiler device (made in Iran, sazgar steam (sazgarmed), with a capacity of 9 serums 35 * 30 * 30) to the required number, which varies for each patient depending on individual characteristics and operation time. Intervention 2: Control group: Irrigation fluid (normal saline 0.9%) with room temperature (between 21 and 23 degrees). Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is Due to the possibility of prolonging the study and publication of the article, researchers will decide regarding the details of sharing the unidentifiable personal data of the participants after the end of the study and publication of the results in the form of an article.