Urologic Diseases
Conditions
Keywords
hypothermia
Brief summary
Hypothermia occurs frequently during general anesthesia. This study is to evaluate the efficacy of 10 minutes of prewarming and warmed fluid during urologic surgery.
Detailed description
During general anesthesia, vasodilation distributes body heat and leads to hypothermia. Especially during urologic operation (transurethral resection of bladder and prostate), bladder irrigation worsens hypothermia. Hence, various methods are used to maintain core temperature during operation. Previous studies have demonstrated that prewarming of the patient is effective in maintaining core temperature perioperatively. However, more than 50% of patients who have applied prewarming for more than 30 minutes preoperatively are reported to fall in hypothermia. Hence, developing simple and effective method to prevent hypothermia is expected. Hence, the investigators planned to examine the effect of active warming (10 minutes of prewarming preoperatively and prewarmed intravenous fluid intraoperatively) on hypothermia in patients undergoing urologic operation under general anesthesia.
Interventions
OTHERprewarming and warmed fluid infusion
prewarming with forced air warming system and warmed fluid infusion.
Sponsors
Inje University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
20 Years to 90 Years
Healthy volunteers
Yes
Inclusion criteria
* patients undergoing urologic surgery(transurethral resection of bladder, prostate)
Exclusion criteria
* moderate to severe cardiopulmonary, renal impairment * thyroid disease * any infection sign * abnormal temperature prior to induction of general anesthesia (\<36'C or \>37.5'C) * refusal to participate in the study * unable to understand the study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| incidence of hypothermia at the end of the operation | approximately 1-2hours after induction (at the end of operation) | after completion of the operation, number of patients with hypothermia (\<36'C) using esophageal stethoscope will be recorded. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| change in temperature before and end of operation | on arrival at the OR upto 1-2hours after induction (at the end of the operation) | change in core temperature will be calculated and compared |
| incidence of shivering | upto 1 hour after end of the operation (on arrival at the postanesthesia care unit) | shivering will be evaluated using 4 point shivering scale (0=none, 1=core and neck shivering, 2= upper extremity 3= whole body) |
| thermal comfort | upto 1hour after end of the operation (at discharge of postanesthesia care unit) | thermal comfort will be evaluated using thermal comfort scale ( 0= very cold, 5= fine, 10= very hot and uncomfortable) |
Countries
South Korea
Outcome results
None listed