NCT00913978

Brief Summary

We propose a study in which we compare two intraoperative active warming devices for maintenance of normothermia in patients undergoing colorectal surgery. A novel underbody resistive warming mattress (VitaHeat) will be compared to the forced air warming blanket (3M Bair Hugger) that is currently used in our institution. Our hypothesis is that the underbody resistive warming mattress will be equally effective as forced air warming in maintaining normothermia in colorectal surgery.

Trial Health

57
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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2017

Geographic Reach
1 country

2 active sites

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 2, 2009

Completed
2 days until next milestone

First Posted

Study publicly available on registry

June 4, 2009

Completed
7.9 years until next milestone

Study Start

First participant enrolled

April 13, 2017

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 21, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 21, 2018

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

January 13, 2020

Completed
Last Updated

January 13, 2020

Status Verified

January 1, 2020

Enrollment Period

1.7 years

First QC Date

June 2, 2009

Results QC Date

November 27, 2019

Last Update Submit

January 7, 2020

Conditions

Keywords

NormothermiaColorectal SurgeryBair HuggersVitaHeat

Outcome Measures

Primary Outcomes (1)

  • The Primary Outcome Measure Will be the Percentage of Intraoperative Time the Participants Body Temperature is Above 36 Degrees Celcius.

    The total percent of intraoperative time (time in the operating room) that the body temperature of the participant is above 36 degrees celcius measured using an esophageal temperature probe.

    1 day

Secondary Outcomes (1)

  • Post Operative Temperature on Admission to Post Operative Care Unit (PACU)

    Immediately after surgery

Study Arms (2)

Group 1: VitaHeat

ACTIVE COMPARATOR

Patients in group one will be warmed perioperatively with the VitaHeat mattress and IV fluid warmers once they are in the operating room.

Device: Group 1: VitaHeat

Group 2: Bair Hugger

ACTIVE COMPARATOR

Patients in group two will be warmed perioperatively with the upper body bair hugger and IV fluid warmers once they are in the operating room.

Device: Group 2: Bair Hugger

Interventions

Patients will receive active warming via a heating mattress (VitaHEAT Medical) placed on the OR table with two thin sheets between the patient and the device; one covering the mattress and the other used as the draw sheet as usual practice. The device will be turned on 10 minutes prior to the patients' arrival to the operating room table. Patients' upper body will be covered with blankets. To increase skin surface contact with the mattress any blankets remaining under the patients' chest or head will be removed after intubation and replaced with a donut. IV fluid warmer initiated on arrival to the operating room. The operating room temperatures will be adjusted to 21°C.

Group 1: VitaHeat

Patients will receive standard forced air warming applied to the upper body and turned on after the patient is prepped and draped. These warmers will be placed directly in contact with the skin without any intervening insulation. IV fluid warmer initiated on arrival to the operating room. The operating room temperatures will be adjusted to 21°C.

Group 2: Bair Hugger

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients older than 18 years old undergoing laparoscopic or open colorectal surgical procedures under general anesthesia.

You may not qualify if:

  • Any patient who is less than 18 years old.
  • Emergent surgery
  • Any patient with thyroid problems
  • Any patient with preoperative fever
  • Any patient who is pregnant
  • Any adult patients unable to consent
  • Prisoners

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Northwestern Memorial Hospital

Chicago, Illinois, 60611, United States

Location

Northwestern University

Chicago, Illinois, 60611, United States

Location

Related Publications (11)

  • Sessler DI. Perioperative thermoregulation and heat balance. Lancet. 2016 Jun 25;387(10038):2655-2664. doi: 10.1016/S0140-6736(15)00981-2. Epub 2016 Jan 8.

    PMID: 26775126BACKGROUND
  • Torossian A. Thermal management during anaesthesia and thermoregulation standards for the prevention of inadvertent perioperative hypothermia. Best Pract Res Clin Anaesthesiol. 2008 Dec;22(4):659-68. doi: 10.1016/j.bpa.2008.07.006.

    PMID: 19137809BACKGROUND
  • Sessler DI, Schroeder M. Heat loss in humans covered with cotton hospital blankets. Anesth Analg. 1993 Jul;77(1):73-7. doi: 10.1213/00000539-199307000-00014.

    PMID: 8317751BACKGROUND
  • Cheney FW, Posner KL, Caplan RA, Gild WM. Burns from warming devices in anesthesia. A closed claims analysis. Anesthesiology. 1994 Apr;80(4):806-10. doi: 10.1097/00000542-199404000-00012.

    PMID: 8024134BACKGROUND
  • Taguchi A, Ratnaraj J, Kabon B, Sharma N, Lenhardt R, Sessler DI, Kurz A. Effects of a circulating-water garment and forced-air warming on body heat content and core temperature. Anesthesiology. 2004 May;100(5):1058-64. doi: 10.1097/00000542-200405000-00005.

    PMID: 15114200BACKGROUND
  • Janicki PK, Higgins MS, Janssen J, Johnson RF, Beattie C. Comparison of two different temperature maintenance strategies during open abdominal surgery: upper body forced-air warming versus whole body water garment. Anesthesiology. 2001 Oct;95(4):868-74. doi: 10.1097/00000542-200110000-00014.

    PMID: 11605926BACKGROUND
  • Hynson JM, Sessler DI. Intraoperative warming therapies: a comparison of three devices. J Clin Anesth. 1992 May-Jun;4(3):194-9. doi: 10.1016/0952-8180(92)90064-8.

    PMID: 1610573BACKGROUND
  • Brauer A, Weyland W, Kazmaier S, Trostdorf U, Textor Z, Hellige G, Braun U. Efficacy of postoperative rewarming after cardiac surgery. Ann Thorac Cardiovasc Surg. 2004 Jun;10(3):171-7.

    PMID: 15312013BACKGROUND
  • Smith CE, Desai R, Glorioso V, Cooper A, Pinchak AC, Hagen KF. Preventing hypothermia: convective and intravenous fluid warming versus convective warming alone. J Clin Anesth. 1998 Aug;10(5):380-5. doi: 10.1016/s0952-8180(98)00049-x.

    PMID: 9702617BACKGROUND
  • Negishi C, Hasegawa K, Mukai S, Nakagawa F, Ozaki M, Sessler DI. Resistive-heating and forced-air warming are comparably effective. Anesth Analg. 2003 Jun;96(6):1683-1687. doi: 10.1213/01.ANE.0000062770.73862.B7.

    PMID: 12760996BACKGROUND
  • Melton GB, Vogel JD, Swenson BR, Remzi FH, Rothenberger DA, Wick EC. Continuous intraoperative temperature measurement and surgical site infection risk: analysis of anesthesia information system data in 1008 colorectal procedures. Ann Surg. 2013 Oct;258(4):606-12; discussion 612-3. doi: 10.1097/SLA.0b013e3182a4ec0f.

    PMID: 23989047BACKGROUND

Limitations and Caveats

The limitation of the results presented is that we did not reach full enrollment as referenced in the protocol because the sponsor terminated the study early.

Results Point of Contact

Title
Meltem Yilmaz, MD
Organization
Northwestern University

Study Officials

  • Meltim Yilmaz, M.D.

    Northwestern University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor in Anesthesiology

Study Record Dates

First Submitted

June 2, 2009

First Posted

June 4, 2009

Study Start

April 13, 2017

Primary Completion

December 21, 2018

Study Completion

December 21, 2018

Last Updated

January 13, 2020

Results First Posted

January 13, 2020

Record last verified: 2020-01

Data Sharing

IPD Sharing
Will not share

Locations