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Effects of Preanesthetic Forced Air Warming and Administration of Warmed Intravascular Fluid

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ClinicalTrials.gov Identifier: NCT03256786
Recruitment Status : Completed
First Posted : August 22, 2017
Last Update Posted : February 27, 2019
Sponsor:
Information provided by (Responsible Party):
Choi Eun MI, Hallym University Kangnam Sacred Heart Hospital

Brief Summary:

The majority of women (> 60%) developed hypothermia and shivering during cesarean delivery. Core hypothermia may be associated with a number of adverse outcomes in patients, including shivering, wound infection, coagulopathy, increased blood loss and transfusion requirements, decreased metabolism and prolonged recovery. Shivering can result in interference with monitoring, increased tension on wound edges, and increased oxygen consumption.

A previous study has shown several modalities to prevent hypothermia and shivering in patients undergoing cesarean delivery with spinal anesthesia. But, single modality intervention have shown marginal or no efficacy.

Neuraxial anesthesia reduces the threshold for vasoconstriction and shivering. It often also produces a lower body sympathectomy that provokes a core to peripheral redistribution of body heat. It is difficult to treat the core to peripheral redistribution of body heat. However redistribution can be prevented by preanesthetic cutaneous warming. Prewarming hardly changes core temperature that remains well regulated, but it markedly increases peripheral tissue heat content. As a result, prewarming reduces the core to peripheral tissue temperature gradient and the propensity for redistribution after the induction of anesthesia.

We therefore hypothesized that Combined modality active warming consisting of preoperative 15 min of surface warming using a forced air warmer before spinal anesthesia and coloading of warmed intravenous fluid might reduce perioperative hypothermia and shivering in women undergoing cesarean delivery. Additionally, We tested the hypothesis that maintaining maternal normothermia increases newborn temperature and Apgar scores.


Condition or disease Intervention/treatment
Pregnancy Behavioral: Prewarming using forced air warmer, warmed intravenous fluid

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Study Type : Observational
Actual Enrollment : 50 participants
Observational Model: Case-Control
Time Perspective: Prospective
Official Title: Effects of Preanesthetic Forced Air Warming and Administration of Warmed Intravascular Fluid on Preventing Hypothermia and Shivering During Cesarean Delivery Under Spinal Anesthesia
Actual Study Start Date : July 12, 2017
Actual Primary Completion Date : April 30, 2018
Actual Study Completion Date : April 30, 2018

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Hypothermia

Group/Cohort Intervention/treatment
Active warming
preoperative 15 min of surface warming using a forced air warmer before spinal anesthesia and coloading of warmed intravenous fluid
Behavioral: Prewarming using forced air warmer, warmed intravenous fluid
Combined modality active warming consisting of preoperative 15 min of surface warming using a forced air warmer before spinal anesthesia and coloading of warmed intravenous fluid in active warming group

Control
no preoperative warming and room temperature intravenous fluid



Primary Outcome Measures :
  1. incidence of hypothermia and shivering [ Time Frame: immediately after arrival at the postanesthesia care unit ]

Secondary Outcome Measures :
  1. temperature of newborn [ Time Frame: immediately after delivery of newborn ]


Information from the National Library of Medicine

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Ages Eligible for Study:   20 Years to 45 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Patients scheduled for cesarean delivery under spinal anesthesia
Criteria

Inclusion Criteria:

  • Patients scheduled for cesarean delivery under spinal anesthesia
  • The American Society of Anesthesiologists physical status class one or two
  • female between 20 and 45

Exclusion Criteria:

  • Patients with heart disease
  • Patients with infectious disease
  • Patients with coagulopathy
  • Patients with a drug allergy
  • In case of switching to general anesthesia
  • Patients BMI under 18.5 or over 31

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03256786


Locations
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Korea, Republic of
Kangnam sacred heart hospital
Seoul, Yeongdeungpo-gu, Korea, Republic of, KS013
Sponsors and Collaborators
Hallym University Kangnam Sacred Heart Hospital
Investigators
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Study Director: Eun Mi Choi, MD Hallym University Kangnam Sacred Heart Hospital
Publications of Results:

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: Choi Eun MI, Clinical Professor, Hallym University Kangnam Sacred Heart Hospital
ClinicalTrials.gov Identifier: NCT03256786    
Other Study ID Numbers: kangnamAN
First Posted: August 22, 2017    Key Record Dates
Last Update Posted: February 27, 2019
Last Verified: February 2019
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Choi Eun MI, Hallym University Kangnam Sacred Heart Hospital:
cesarean delivery with spinal anesthesia
Hypothermia and shivering
Active warming
Additional relevant MeSH terms:
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Hypothermia
Body Temperature Changes