General Anesthesia, Temperature
Conditions
Brief summary
Core temperature should be monitored under general anesthesia. Recently developed 3M Spoton skin temeprature which is applied on temporal artery is correlated with core temperature measure by esophageal prove in several studies. Conventional skin temperature over carotid artery is also correlated with core temperature in several studies. The purpose of this study is comparing 3 methods of temperature monitoring. First, conventional core temperature measure by esophageal stethoscope. Second, 3M Spoton applying on temporal artery. Third, 3M Spoton applying on carotid artery
Detailed description
Core temperature should be monitored under general anesthesia. Because patients are prone to hypothermia during surgery. Conventional core temperature is monitored at esophagus, rectum, nasopharynx. But some of them are invasive and impossible in sometimes. Recently developed 3M Spoton skin temeprature which is applied on temporal artery is correlated with core temperature measured by esophageal prove in several studies. Its mechanism is making zero heat flux on skin applied. But it also cannot apply in head or facial surgery. Other studies showed conventional skin temperature over carotid artery is also correlated with core temperature. The investigators hypothesized using Spoton on carotid artery could be alternative method measuring core temperature. The purpose of this study is comparing 3 methods of temperature monitoring. First, conventional core temperature measure by esophageal stethoscope. Second, 3M Spoton applying on temporal artery. Third, 3M Spoton applying on carotid artery
Interventions
Measuring core temperature by esophageal stethoscope
OTHERSpoton Temporal
Mesuring temperature on skin near to temporal artery using Spoton
OTHERSpoton Carotid
Mesuring temperature on skin near to carotidl artery using Spoton
Sponsors
Ajou University School of Medicine
Study design
Observational model
OTHER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
19 Years to 60 Years
Healthy volunteers
No
Inclusion criteria
* Age 19\ 60 years old * Who need surgery more than 2 hours under general anesthesia * American Society of Anesthesiologists physical status 1 or 2
Exclusion criteria
* Body mass index \< 35 * Head and neck surgery * Patients with fever \> 38'C * History of malignant hyperthermia
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Esophageal core temperature measured by stethoscope ℃ | 3 hours (during general anesthesia) | Temperature measured by esophageal stethoscope, ℃ |
| Carotid skin temperature by SpotOn, ℃ | 3 hours (during general anesthesia) | Temperature measured by SpotOn near to carotid artery, ℃ |
| Temporal skin temperature by SpotOn, ℃ | 3 hours (during general anesthesia) | Temperature measured by SpotOn near to temporal artery, ℃ |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Room temperature, ℃ | 3 hours (during general anesthesia) | Operating room temperature, ℃ |
Countries
South Korea
Contacts
Primary ContactIn Kyong Yi, MD
Outcome results
None listed