In this randomized prospective single-blind study,American Society of Anesthesiologists physical status classification system ( ASA )I-II-III patients aged 50-80 years undergoing transurethral bladder resection will be randomly divided into two groups. First group will be covered with 41 centigrade degrees double layered cotton cloth. Second group will receive active prewarming. Core temperature of all patients will be monitorized via tympanic membrane. Skin temperature will be monitorized from 4 different body areas. Spinal anesthesia will be applied at the level of L3-L4 by a 25 Gauge quincke needle with a dose of 12.5-15 mg hyperbaric bupivacaine. Pinprick test will be used for sensorial block assessment. T10 sensorial block will be our goal. Hemodynamic parameters will be recorded. Skin temperature will be monitorized before and after spinal anesthesia and changes will be recorded. Operation time, amount and temperature of irrigation fluids, transfusion requirement, discharge time from postoperative care unit will also be recorded. Shivering score and thermal comfort scale will be used. The two groups will be compared for the temperature changes.
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peripheral skin temperature at ( F0)
Timeframe: just after spinal anesthesia done
peripheral skin temperature at( S0)
Timeframe: just after spinal anesthesia done
peripheral skin temperature( T0)
Timeframe: just after spinal anesthesia done
peripheral skin temperature( M0)
Timeframe: just after spinal anesthesia done
peripheral skin temperature( F1)
Timeframe: 60 seconds after spinal anesthesia done
peripheral skin temperature( F2)
Timeframe: 120 seconds after spinal anesthesia done
peripheral skin temperature( F3)
Timeframe: 180 seconds after spinal anesthesia done
peripheral skin temperature( F4)
Timeframe: 4 minute after spinal anesthesia done
peripheral skin temperature( F5)
Timeframe: 5 minute after spinal anesthesia done
peripheral skin temperature( F6)
Timeframe: 6 minute after spinal anesthesia done
peripheral skin temperature( F7)
Timeframe: 7 minute after spinal anesthesia done
peripheral skin temperature( F8)
Timeframe: 8 minute after spinal anesthesia done
peripheral skin temperature( F9)
Timeframe: 9 minute after spinal anesthesia done
peripheral skin temperature( F10)
Timeframe: 10 minute after spinal anesthesia done
peripheral skin temperature( F15)
Timeframe: 15 minute after spinal anesthesia done
peripheral skin temperature( F20)
Timeframe: 20 minute after spinal anesthesia done
peripheral skin temperature( F25)
Timeframe: 25 minute after spinal anesthesia done
peripheral skin temperature( F30)
Timeframe: 30 minute after spinal anesthesia done
peripheral skin temperature( F35)
Timeframe: 35 minute after spinal anesthesia done
peripheral skin temperature( F40)
Timeframe: 40 minute after spinal anesthesia done
peripheral skin temperature( F45)
Timeframe: 45 minute after spinal anesthesia done
peripheral skin temperature( F50)
Timeframe: 50 minute after spinal anesthesia done
peripheral skin temperature( F55)
Timeframe: 55 minute after spinal anesthesia done
peripheral skin temperature( F60)
Timeframe: 60 minute after spinal anesthesia done
peripheral skin temperature at( S1)
Timeframe: 60 seconds after spinal anesthesia done
peripheral skin temperature at( S2)
Timeframe: 120 seconds after spinal anesthesia done
peripheral skin temperature at( S3)
Timeframe: 180 seconds after spinal anesthesia done
peripheral skin temperature at( S4)
Timeframe: 4 minute after spinal anesthesia done
peripheral skin temperature at( S5)
Timeframe: 5 minute after spinal anesthesia done
peripheral skin temperature at( S6)
Timeframe: 6 minute after spinal anesthesia done
peripheral skin temperature at( S7)
Timeframe: 7 minute after spinal anesthesia done
peripheral skin temperature at( S8)
Timeframe: 8 minute after spinal anesthesia done
peripheral skin temperature at( S9)
Timeframe: 9 minute after spinal anesthesia done
peripheral skin temperature at( S10)
Timeframe: 10 minute after spinal anesthesia done
peripheral skin temperature at( S15)
Timeframe: 15 minute after spinal anesthesia done
peripheral skin temperature at( S20)
Timeframe: 20 minute after spinal anesthesia done
peripheral skin temperature at( S25)
Timeframe: 25 minute after spinal anesthesia done
peripheral skin temperature at( S30)
Timeframe: 30 minute after spinal anesthesia done
peripheral skin temperature at( S35)
Timeframe: 35 minute after spinal anesthesia done
peripheral skin temperature at( S40)
Timeframe: 40 minute after spinal anesthesia done
peripheral skin temperature at( S45)
Timeframe: 45 minute after spinal anesthesia done
peripheral skin temperature at( S50)
Timeframe: 50 minute after spinal anesthesia done
peripheral skin temperature at( S55)
Timeframe: 55 minute after spinal anesthesia done
peripheral skin temperature at( S60)
Timeframe: 60 minute after spinal anesthesia done
peripheral skin temperature( T1)
Timeframe: 60 seconds after spinal anesthesia done
peripheral skin temperature( T2)
Timeframe: 120 seconds after spinal anesthesia done
peripheral skin temperature( T3)
Timeframe: 180 seconds after spinal anesthesia done
peripheral skin temperature( T4)
Timeframe: 4 minute after spinal anesthesia done
peripheral skin temperature( T5)
Timeframe: 5 minute after spinal anesthesia done
peripheral skin temperature( T6)
Timeframe: 6 minute after spinal anesthesia done
peripheral skin temperature( T7)
Timeframe: 7 minute after spinal anesthesia done
peripheral skin temperature( T8)
Timeframe: 8 minute after spinal anesthesia done
peripheral skin temperature( T9)
Timeframe: 9 minute after spinal anesthesia done
peripheral skin temperature( T10)
Timeframe: 10 minute after spinal anesthesia done
peripheral skin temperature( T15)
Timeframe: 15 minute after spinal anesthesia done
peripheral skin temperature( T20)
Timeframe: 20 minute after spinal anesthesia done
peripheral skin temperature( T25)
Timeframe: 25 minute after spinal anesthesia done
peripheral skin temperature( T30)
Timeframe: 30 minute after spinal anesthesia done
peripheral skin temperature( T35)
Timeframe: 35 minute after spinal anesthesia done
peripheral skin temperature( T40)
Timeframe: 40 minute after spinal anesthesia done
peripheral skin temperature( T45)
Timeframe: 45 minute after spinal anesthesia done
peripheral skin temperature( T50)
Timeframe: 50 minute after spinal anesthesia done
peripheral skin temperature( T55)
Timeframe: 55 minute after spinal anesthesia done
peripheral skin temperature( T60)
Timeframe: 60 minute after spinal anesthesia done
peripheral skin temperature( M1)
Timeframe: 60 seconds after spinal anesthesia done
peripheral skin temperature( M2)
Timeframe: 120 seconds after spinal anesthesia done
peripheral skin temperature( M3)
Timeframe: 180 seconds after spinal anesthesia done
peripheral skin temperature( M4)
Timeframe: 4 minute after spinal anesthesia done
peripheral skin temperature( M5)
Timeframe: 5 minute after spinal anesthesia done
peripheral skin temperature( M6)
Timeframe: 6 minute after spinal anesthesia done
peripheral skin temperature( M7)
Timeframe: 7 minute after spinal anesthesia done
peripheral skin temperature( M8)
Timeframe: 8 minute after spinal anesthesia done
peripheral skin temperature( M9)
Timeframe: 9 minute after spinal anesthesia done
peripheral skin temperature( M10)
Timeframe: 10 minute after spinal anesthesia done
peripheral skin temperature( M15)
Timeframe: 15 minute after spinal anesthesia done
peripheral skin temperature( M20)
Timeframe: 20 minute after spinal anesthesia done
peripheral skin temperature( M25)
Timeframe: 25 minute after spinal anesthesia done
peripheral skin temperature( M30)
Timeframe: 30 minute after spinal anesthesia done
peripheral skin temperature( M35)
Timeframe: 35 minute after spinal anesthesia done
peripheral skin temperature( M40)
Timeframe: 40 minute after spinal anesthesia done
peripheral skin temperature( M45)
Timeframe: 45 minute after spinal anesthesia done
peripheral skin temperature( M50)
Timeframe: 50 minute after spinal anesthesia done
peripheral skin temperature( M55)
Timeframe: 55 minute after spinal anesthesia done
peripheral skin temperature( M60)
Timeframe: 60 minute after spinal anesthesia done