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Evaluating Adult Patient Temperatures During Lower Spinal Surgery

3. maj 2018 opdateret af: Jean M. Guyer, Mayo Clinic

Comparing Patient Temperatures in Adults During Lower Spinal Surgery Using Either a Heated Ventilator Circuit or a Standard Ventilator Circuit With a Heat-Moisture Exchanger

The purpose of this study is to evaluate patients' temperatures after using one of two ventilator circuits (breathing systems): the ANAPOD™ Heat and Humidification System (ANAPOD™ system) or the standard ventilator circuit with a heat-moisture exchanger (standard ventilator). The ANAPOD™ system will provide additional heat and humidity to patients through their breathing tube while the standard ventilator will not. The investigators are doing this research study to find out if the ventilator circuit providing additional heat and humidity will keep patients warmer during surgery and after surgery.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Patients were randomly assigned to either the treatment group or the control group prior to surgery. Prior to induction, patients in the control group were given inspiratory gas at ambient air temperature (20-22 degrees Celsius) and patients in the treatment group were given inspiratory gas at warmed temperatures (40-41 degrees Celsius). All patients were induced with general anesthesia in the supine position and repositioned prone following endotracheal intubation and placement of an esophageal stethoscope with a temperature sensor, as per usual hospital practice. Esophageal temperatures were recorded within 30 minutes of the baseline esophageal temperature and every 10 minutes thereafter for the first hour post-induction. All patients had a blanket and forced air warming applied to their lower extremities and upper back at 43 degrees Celsius after draping. All patients had esophageal temperature measurements recorded every 30 minutes until the patient was repositioned supine. Core temperatures were recorded four hours post-induction for those patients reaching that timeframe.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

70

Fase

  • Ikke anvendelig

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Elective spine surgery anticipated greater than three hours in duration
  • Posterior approach
  • An operative site between lumbar one and sacral one
  • Involving two or more levels with fusion and/or instrumentation and/or revisions
  • American Society of Anesthesiologists (ASA) Status of I-III

Exclusion Criteria:

  • Patients with a tracheostomy
  • Preoperative temperature >38°C or <36°C on the day of surgery
  • Active infection or erythema to the back
  • White blood cell count greater than 10,500/microliter (mcL)

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Heated Ventilator Circuit
Heated and humidified inspired gases using the ANAPOD™ Heat and Humidification System (Westmed; Tucson, Arizona, USA) circuit prior to induction of general anesthesia in addition to standard ventilation and temperature management.
Enhed: Heated Ventilator Circuit
active heat and humidification during anesthesia by warming inspire gases without a heat-moisture exchanger
Andre navne:
  • ANAPOD™ Heat and Humidification System
Aktiv komparator: Standard Ventilator Circuit
Standard ventilation and temperature management.
Enhed: Standard Ventilator Circuit
no active heat and humidification during anesthesia
Andre navne:
  • Thermovent 600; Portex

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Core Body Temperature
Tidsramme: Approximately four hours post-induction of general anesthesia (or last recorded temperature)
Core body temperature will be taken in the esophagus. The last recorded esophageal temperature will be used for surgeries not reaching 3 hours duration.
Approximately four hours post-induction of general anesthesia (or last recorded temperature)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Intraoperative Core Temperatures Post-induction
Tidsramme: Approximately 30 minutes, 60 minutes, 120 minutes post-induction of general anesthesia
Core body temperature will be taken in the esophagus after general anesthesia induction.
Approximately 30 minutes, 60 minutes, 120 minutes post-induction of general anesthesia
Number of Subjects With Post-operative Shivering
Tidsramme: Approximately 2 hours after completion of the surgery
Shivering in the post-anesthesia care unit will be assessed using the Bedside Shivering Assessment Scale. This is a 4 point scale and rate shivering as the following: absent, mild, moderate, or severe. Only the highest degree of patient shivering was used in the analysis.
Approximately 2 hours after completion of the surgery
Hospital Length of Stay
Tidsramme: Surgery to hospital discharge
Number of days in the hospital
Surgery to hospital discharge
Overall Post-operative Temperature
Tidsramme: PACU arrival
Temperature at Post Anesthesia Care Unit (PACU) arrival.
PACU arrival
Number of Participants With Transfusion Within 48 Hours of Surgery
Tidsramme: Within 48 hours of surgery
Requirement of blood transfusion within 48 hours of surgery
Within 48 hours of surgery
Estimated Blood Loss
Tidsramme: duration of surgery
The estimated blood loss per case was determined by the anesthesia provider by measuring the volume of blood in the suction canister while taking into account the amount of irrigation solution used.
duration of surgery

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Mayo Clinic

Samarbejdspartnere

Westmed, Inc.

Efterforskere

  • Ledende efterforsker: Jean M Guyer, DNP, Mayo Clinic

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

28. august 2015

Primær færdiggørelse (Faktiske)

5. februar 2017

Studieafslutning (Faktiske)

5. februar 2017

Datoer for studieregistrering

Først indsendt

9. februar 2017

Først indsendt, der opfyldte QC-kriterier

9. februar 2017

Først opslået (Faktiske)

13. februar 2017

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

7. maj 2018

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

3. maj 2018

Sidst verificeret

1. maj 2018

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 15-001604
  • UL1TR000135 (U.S. NIH-bevilling/kontrakt)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ja

produkt fremstillet i og eksporteret fra U.S.A.

Ja

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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Betingelser

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