No Placebo GroupAll trial participants will receive the active study treatment (no placebo)
Trial Summary
What is the purpose of this trial?
The investigators propose a single-center multiple crossover randomized trial to determine the efficacy of four warming devices and five warming blankets. The investigators will measure cutaneous heat loss/ gain using thermal flux transducers in unanesthetized volunteers.
Research Team
sS
sessled@ccf.org Sessler, MD
Principal Investigator
The Cleveland Clinic
Eligibility Criteria
This trial is for healthy volunteers aged 18-40 with a body-mass index (BMI) between 20 and 33. Participants should be in good physical condition, classified as ASA Physical Status 1 or 2, which means they have no or only mild systemic disease.
Inclusion Criteria
I am healthy or have mild systemic disease.
My BMI is between 20 and 33.
Timeline
Screening
Participants are screened for eligibility to participate in the trial
2-4 weeks
Treatment
Participants are exposed to different warming devices and blankets in a crossover design to measure heat transfer and thermal comfort
5 sessions of 30 minutes each with 40-minute washout periods
Follow-up
Participants are monitored for any adverse effects and overall thermal comfort post-treatment
1 week
Treatment Details
Interventions
Full-Body Blanket
Trial Overview The study tests the effectiveness of four different warming devices connected to five types of full-body blankets in preventing heat loss. Volunteers will not be under anesthesia and will experience each blanket-device combination through random assignment.
Participant Groups
5Treatment groups
Experimental Treatment
Group I: EADBCExperimental Treatment5 Interventions
E. Volunteers will be covered with the blanket Full Body blanket (CLM0101) connected to the Care Essential, Cocoon, Blower CWS5000 system for 30 minutes. A. After a 40-minute washout period, the volunteers will be covered with the adult blanket plus, MA2220 connected to the Mistral Air, Blower MA1200-PM system for 30 minutes. D. After a 40-minute washout period, the volunteers will be covered with the FilteredFlo® Air Blanket connected to the WarmAir® Convective Warming system for 30 minutes. B. Finally and after a last 40-minute washout period, the volunteers will be covered with the Premium Adult Blanket, 3320 connected to the Mistral Air, Blower MA1200-PM system for 30 minutes. C. Finally and after a last 40-minute washout period, the volunteers will be covered with the blanket full body, 30000 blanket connected to the 3M, Bair Hugger, Blower 775 for 30 minutes.
Group II: DCAEBExperimental Treatment5 Interventions
D. Volunteers will be covered with the FilteredFlo® Air Blanket connected to the WarmAir® Convective Warming system for 30 minutes. C. After a 40-minute washout period, the volunteers will be covered with the blanket full body, 30000 blanket connected to the 3M, Bair Hugger, Blower 775 for 30 minutes. A. After a 40-minute washout period, the volunteers will be covered with the adult blanket plus, MA2220 connected to the Mistral Air, Blower MA1200-PM system for 30 minutes. E. After a 40-minute washout period, the volunteers will be covered with the blanket Full Body blanket (CLM0101) connected to the Care Essential, Cocoon, Blower CWS5000 system for 30 minutes. B. Finally and after a last 40-minute washout period, the volunteers will be covered with the Premium Adult Blanket, 3320 connected to the Mistral Air, Blower MA1200-PM system for 30 minutes.
Group III: CEBADExperimental Treatment5 Interventions
C. Volunteers will be covered with the blanket full body, 30000 blanket connected to the 3M, Bair Hugger, Blower 775 for 30 minutes. E. After a 40-minute washout period, the volunteers will be covered with the Blanket Full Body blanket (CLM0101) connected to the Care Essential, Cocoon, Blower CWS5000 system for 30 minutes. B. After a 40-minute washout period, the volunteers will be covered with the Premium Adult Blanket, 3320 connected to the Mistral Air, Blower MA1200-PM system for 30 minutes. A. After a 40-minute washout period, the volunteers will be covered with the adult blanket plus, MA2220 connected to the Mistral Air, Blower MA1200-PM system for 30 minutes. D. Finally and after a last 40-minute washout period, the volunteers will be covered with the FilteredFlo® Air Blanket connected to the WarmAir® Convective Warming system for 30 minutes.
Group IV: BDECAExperimental Treatment5 Interventions
B. Volunteers will be covered with the Premium Adult Blanket, 3320 connected to the Mistral Air, Blower MA1200-PM system for 30 minutes. D. After a 40-minute washout period, the volunteers will be covered with the FilteredFlo® Air Blanket connected to the WarmAir® Convective Warming system for 30 minutes. E. After a 40-minute washout period, the volunteers will be covered with the Blanket Full Body blanket (CLM0101) connected to the Care Essential, Cocoon, Blower CWS5000 system for 30 minutes. C. After a 40-minute washout period, the volunteer will be covered with the Blanket full body, 30000 connected to the 3M, Bair Hugger, Blower 775 for 30 minutes. A. Finally and after a last 40-minute washout period, the volunteers will be covered with the Adult Blanket plus, MA2220 connected to the Mistral Air, Blower MA1200-PM system for 30 minutes.
Group V: ABCDEExperimental Treatment5 Interventions
A. Volunteers will be covered with the Adult Blanket plus, MA2220 connected to the Mistral Air, Blower MA1200-PM system for 30 minutes. B. After a 40 minutes washout period, the volunteers will be covered with the Premium Adult Blanket, 3320 connected to the Mistral Air, Blower MA1200-PM system for 30 minutes. C. After a 40-minute washout period, the volunteers will be covered with the Blanket full body, 30000 connected to the 3M, Bair Hugger, Blower 775 for 30 minutes. D. After a 40-minute washout period, the volunteers will be covered with the FilteredFlo® Air Blanket connected to the WarmAir® Convective Warming system for 30 minutes. E. Finally and after a last 40-minute washout period, the volunteers will be covered with the Blanket Full Body blanket (CLM0101) connected to the Care Essential, Cocoon, Blower CWS5000 system for 30 minutes.