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| Name | Class |
|---|---|
| University of Alcala | OTHER |
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This study evaluates the effect of active prewarming on the frequency and duration of perioperative hypothermia. 50% of patients will receive active warming with forced-air devices prior to entering the operating room, and the other 50% will not receive any active heating measures.
Inadvertent perioperative hypothermia is defined as a body temperature below 36º C during the perioperative period. It occurs as a result of the effects of anesthetic drugs on the regulation of body temperature and exposure to a cold environment.
The main temperature loss during the perioperative period occurs during the first hour after the anesthetic induction as a result of heat redistribution from the central compartment to the peripheral compartment
The most effective strategy to prevent perioperative hypothermia is the use of forced-air warming devices. These devices are usually initiated once the patient enters the operating room. At that time, the patient has already initiated the heat loss by distributing heat from the central to the peripheral compartment to maintain body temperature.
We intend to use forced-air warming devices before the patients is transferred to the operating room in order to preserve the peripheral body temperature. This way the redistribution of heat should be avoided and, therefore, perioperative hypothermia and its harmful effects will be prevented.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Prewarming | Experimental | Active warming is allowed prior to surgery with forced-air warming devices |
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| No prewarming | No Intervention | Non active warming is allowed before surgery |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Forced air warming devices | Device | In the treatment group, heating will be started with a pre-surgical forced-air blanket "Outpatient Warming Blanket model 11101 Bair Hugger from 3M" and a forced-air heating unit "Bair Hugger Warming Unit Model 775 from 3M" at 38-43º C which will be maintain during the stay in the pre-surgery room until the transfer to the operating room |
| Measure | Description | Time Frame |
|---|---|---|
| Perioperative hypothermia | Core temperature below 36º C measured with 3M Spot On monitor every 5 minutes from arrival to the pre-surgical area, during surgery and unit discharge to the ward | From 1 hour to 12 hours |
| Measure | Description | Time Frame |
|---|---|---|
| Hypothermia duration | Time of core temperature below 36º C measured every 5 minutes with 3M Spot On monitor from arrival to the surgery room and unit discharge to postoperative unit. | Minutes with core temperature below 36ºC from arrival to the OR unit discharge to postoperative unit, up to 10 hours, whichever came first. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| JESÚS RECIO PÉREZ, ANESTHETIST | HOSPITAL UNIVERSITARIO DE TORREJON | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hospital Universitario de Torrejon | Torrejón de Ardoz | Madrid | 28850 | Spain |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 25411963 | Background | Warttig S, Alderson P, Campbell G, Smith AF. Interventions for treating inadvertent postoperative hypothermia. Cochrane Database Syst Rev. 2014 Nov 20;2014(11):CD009892. doi: 10.1002/14651858.CD009892.pub2. | |
| 28454611 | Background | Giuliano KK, Hendricks J. Inadvertent Perioperative Hypothermia: Current Nursing Knowledge. AORN J. 2017 May;105(5):453-463. doi: 10.1016/j.aorn.2017.03.003. |
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| ID | Term |
|---|---|
| D007035 | Hypothermia |
| ID | Term |
|---|---|
| D001832 | Body Temperature Changes |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| Hospital stay |
Patient´s days keep in hospital, from admission in hospital until discharge from the home |
| From date of Admission in hospital until the date of discharge from hospital, assessed up to 120 days. |
| Surgical site infection | Follow-up the wound and evaluation of signs and symptoms of surgical site infection from surgery to review for the nurse. | 1 Month |
| Prewarming duration | Time from pre-warming initiation in pre operative area with forced air warming device until transfer to operating theatre. | From 10 minutes to 1 hour |
| 27098439 | Background | Madrid E, Urrutia G, Roque i Figuls M, Pardo-Hernandez H, Campos JM, Paniagua P, Maestre L, Alonso-Coello P. Active body surface warming systems for preventing complications caused by inadvertent perioperative hypothermia in adults. Cochrane Database Syst Rev. 2016 Apr 21;4(4):CD009016. doi: 10.1002/14651858.CD009016.pub2. |
| 25837741 | Background | Torossian A, Brauer A, Hocker J, Bein B, Wulf H, Horn EP. Preventing inadvertent perioperative hypothermia. Dtsch Arztebl Int. 2015 Mar 6;112(10):166-72. doi: 10.3238/arztebl.2015.0166. |
| 17004666 | Background | Wagner D, Byrne M, Kolcaba K. Effects of comfort warming on preoperative patients. AORN J. 2006 Sep;84(3):427-48. doi: 10.1016/s0001-2092(06)63920-3. |
| 24075332 | Background | Kellam MD, Dieckmann LS, Austin PN. Forced-air warming devices and the risk of surgical site infections. AORN J. 2013 Oct;98(4):354-66; quiz 367-9. doi: 10.1016/j.aorn.2013.08.001. |
| 22376088 | Background | Horn EP, Bein B, Bohm R, Steinfath M, Sahili N, Hocker J. The effect of short time periods of pre-operative warming in the prevention of peri-operative hypothermia. Anaesthesia. 2012 Jun;67(6):612-7. doi: 10.1111/j.1365-2044.2012.07073.x. Epub 2012 Feb 29. |