Effect of Prewarming During Induction of General Anesthesia Combined With Warmed Intravenous Fluid on Core Temperature.

Inje University

Status: Completed

Conditions: Urologic Diseases

Treatments: Procedure: Prewarmed intravenous fluid administration; Procedure: warming during induction of anesthesia

Study type: Interventional

Funder types: Other

Identifiers

NCT05636189

2022-08-011-001

Details and patient eligibility

About

Hypothermia occurs frequently during general anesthesia. This study is to evaluate the efficacy of 10 minutes of prewarming during induction of general anesthesia during urologic surgery.

Full description

Hypothermia is of continuous issue in patients undergoing general anesthesia. During urologic operation (transurethral resection of bladder and prostate), bladder irrigation worsens hypothermia. Hence, various methods including prewarming of the patient are used to maintain core temperature during operation.

Prewarming is found to be effective in maintaining core temperature perioperatively by increasing peripheral tissue heat content. However, applying more than 30 minutes of prewarming may be impractical as a clinical routine practice. Hence, developing simple and effective method to prevent hypothermia is expected.

Here, the investigators planned to examine the effect of active warming (10 minutes of warming during induction of general anesthesia and prewarmed intravenous fluid intraoperatively) on hypothermia in patients undergoing urologic operation under general anesthesia.

Enrollment: 50 patients

Sex: All

Ages: 20 to 90 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• patients undergoing urologic surgery(transurethral resection of bladder, prostate)

Exclusion criteria

• moderate to severe cardiopulmonary, renal impairment
• previous 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

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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50 participants in 2 patient groups

warming group

Active Comparator group

Description:

warming of the patient with whole body warming blanket in the OR during induction of anesthesia, prewarmed intravenous fluid during the operation.

Treatment:

Procedure: Prewarmed intravenous fluid administration

Procedure: warming during induction of anesthesia

no warming group

No Intervention group

Description:

There will be no whole body warming during induction.