Evaluation of a Patient Warming Concept Following the German S3 Guideline for Prevention of Intraoperative Hypothermia

Study Overview
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Brief Summary
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The aim of the study is to evaluate a patient prewarming concept following the recommendations of the S3-guideline Prevention of perioperative hypothermia with respect to incidence and complications of perioperative hypothermia. The study hypothesis is that postoperative core temperature in adult patients after prewarming is significantly higher than in patients who were treated following actual standard protocol (passive insulation).

Detailed Description
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The aim of the study is to evaluate a patient prewarming concept following the recommendations of the new german S3-guideline Prevention of perioperative hypothermia with respect to incidence and complications of perioperative hypothermia. Prewarming should enable the patients to preserve their core temperature for a longer period and to avoid perioperative hypothermia.The study hypothesis is that postoperative core temperature in adult patients after prewarming is significantly higher than in patients who were treated following the actual standard protocol (passive insulation).

Official Title
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Evaluation of a Patient Warming Concept Following the New German Speaking S3 Guideline for Prevention of Intraoperative Hypothermia With Respect to Incidence and Complications of Perioperative Hypothermia

Conditions
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Hypothermia, Hypothermia, Accidental

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: patients scheduled for elective general or orthopedic surgery with expected duration > 45 min American Society of Anesthesiologists physical status 1-3 age > 17 years Exclusion Criteria: emergency surgery patient's denial unexpected decrease of duration of anesthesia < 45 min preoperative body temperature > 38 °C

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Passive Insulation standard treatment<br>no active warming before start of anesthesia and no active warming at PACU | |
| Active prewarming treatment<br>active warming before start of anesthesia and active warming at PACU following recommendations of S3-guideline | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Incidence of postoperative hypothermia at admission to PACU | The incidence of postoperative hypothermia at admission to PACU should be evaluated by sublingual temperature measurement. | admission to PACU | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Type and duration of surgery as influence factors for postoperative hypothermia at admission to PACU | Type and duration of surgery should be evaluated as influence factors for postoperative hypothermia at admission to PACU? | admission to PACU | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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perioperative hypothermia, prewarming, treatment guideline