Correlation Between Core Temperature and Skin Temperature Measured by 3M SpotOn

Recruiting

• Conditions: Temperature; General Anesthesia
• Interventions: Other: Esophagus temperature monitoring; Other: Spoton Temporal; Other: Spoton Carotid

• Registration Number: NCT03745079
• Lead Sponsor: Ajou University School of Medicine

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

Study Timeline

• Study First Submitted: 2018-11-12
• Study First Submitted QC: 2018-11-15
• Study First Posted: 2018-11-19
• Study Start: 2019-09-20
• Status Verified: 2023-03
• Last Update Submitted: 2023-03-03
• Last Update Posted: 2023-03-06
• Primary Completion: 2023-12-30
• Study Completion: 2023-12-31

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 80

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

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Group 1	Esophagus temperature monitoring	Participants' temperature measured at 3 places at the same time * Esophagus * Skin near to temporal artery * Skin near to carotid artery
Group 1	Spoton Carotid	Participants' temperature measured at 3 places at the same time * Esophagus * Skin near to temporal artery * Skin near to carotid artery
Group 1	Spoton Temporal	Participants' temperature measured at 3 places at the same time * Esophagus * Skin near to temporal artery * Skin near to carotid artery

Primary Outcome Measures

Name	Time	Method
Esophageal core temperature measured by stethoscope ℃	3 hours (during general anesthesia)	Temperature measured by esophageal stethoscope, ℃
Temporal skin temperature by SpotOn, ℃	3 hours (during general anesthesia)	Temperature measured by SpotOn near to temporal artery, ℃
Carotid skin temperature by SpotOn, ℃	3 hours (during general anesthesia)	Temperature measured by SpotOn near to carotid artery, ℃

Secondary Outcome Measures

Name	Time	Method
Room temperature, ℃	3 hours (during general anesthesia)	Operating room temperature, ℃

Trial Locations

Locations (1)

Ajou university school of medicine; 🇰🇷 Suwon, Gyeonggi-do, Korea, Republic of