Clinical Trials Logo

Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05334589
Other study ID # ErsoyU
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date November 2, 2021
Est. completion date July 29, 2022

Study information

Verified date January 2023
Source Burdur Mehmet Akif Ersoy University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

A randomized controlled study was conducted to examine the effect of active warming before total knee arthroplasty on intraoperative body temperature and comfort.


Description:

Inadvertent perioperative hypothermia is defined as a patient's internal temperature below 36 °C in surgical settings. All patients undergoing surgery and other invasive procedures are at risk of developing undesirable hypothermia. Both general and neuraxial anesthesia greatly impair thermoregulatory control, and as a result, unwarmed surgical patients become hypothermic. General and regional anesthesia causes undesirable hypothermia as a result of the redistribution of body temperature from the center to the periphery. In the perioperative period, patients over 60 years of age with poor nutritional status, low core temperature before surgery, preoperative fasting and fluid deprivation before anesthesia, premedication, type of surgery, dry and cold anesthetic gases, cold intravenous fluids, flushes, blood products (cold fluids direct core temperature) Hypothermia is caused by low ambient temperature, wet skin, dressings or sheets, anesthetic agents, large open cavity or abdominal surgery, excessive blood loss, drugs used before surgery. There are many methods to maintain the body temperature of patients (passive isolation methods) or to warm the patient (active warming methods). Passive insulation methods include heated cotton blankets, surgical drapes, and thermal suits. Active heating techniques include compressed air heaters, electric heating blankets, and heated liquids and gases. In the literature, studies on active and passive heating methods have been found in order to prevent undesirable hypothermia. There are studies with stand-alone active heating methods (such as pressurized hot air blowing systems, heated liquids, circulating hot water systems) and combined methods. Because the results of these studies were different, a randomized controlled study was planned to investigate the effectiveness of the prewarming intervention, to support the surgical process nurses in clinical practice, and to increase the reliability of the results, before developing a procedure related to prewarming. In the study, the effect of prewarming with a hot air blowing system before the surgical procedure on the patients who will undergo total knee arthroplasty, on the patient's body temperature during the operation and on the comfort in the early postoperative period will be determined.


Recruitment information / eligibility

Status Completed
Enrollment 54
Est. completion date July 29, 2022
Est. primary completion date June 8, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years to 80 Years
Eligibility Inclusion Criteria: - Patients who volunteered to participate in the study - Elective surgery planned - Patients between the ages of 18-80 - ASA I-III - Neuroaxial anesthesia applied - No sensory problems (hearing, vision) - No psychiatric illness - 18.5<BMI<39.9 kg/m2 Exclusion Criteria: - Body temperature <36°C at the entrance to the operating room - Preoperative body temperature <36°C - Patients who develop complications during preheating (blood pressure rise, patients are uncomfortable with the heat, they are agitated) - Peripheral vascular disease - Patients with communication difficulties - Patients with infectious disease

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Prewarming
When patients in the study group come to the Preoperative Care Unit (PCU), their body temperature will be measured. Patients in the study group will be placed in such a way that the 3M™ Bair Hugger™ Whole Body Blanket covers the patient's body and prewarmed with the 3M™ Bair Hugger™ Warming Unit for 30 minutes before anesthesia is given in the PCU. Heating unit temperature will be adjusted to 43°C in line with company recommendations. After the patients in the study group are warmed up for 30 minutes, the preheating process will be completed and the whole body blanket will be taken and the blankets that the clinic routinely use for each patient will be covered to cover the patients' body.

Locations

Country Name City State
Turkey Hatice Özsoy Merkez Burdur

Sponsors (1)

Lead Sponsor Collaborator
Burdur Mehmet Akif Ersoy University

Country where clinical trial is conducted

Turkey, 

References & Publications (3)

Akhtar Z, Hesler BD, Fiffick AN, Mascha EJ, Sessler DI, Kurz A, Ayad S, Saager L. A randomized trial of prewarming on patient satisfaction and thermal comfort in outpatient surgery. J Clin Anesth. 2016 Sep;33:376-85. doi: 10.1016/j.jclinane.2016.04.041. Epub 2016 Jun 3. — View Citation

Rosenkilde C, Vamosi M, Lauridsen JT, Hasfeldt D. Efficacy of Prewarming With a Self-Warming Blanket for the Prevention of Unintended Perioperative Hypothermia in Patients Undergoing Hip or Knee Arthroplasty. J Perianesth Nurs. 2017 Oct;32(5):419-428. doi: 10.1016/j.jopan.2016.02.007. Epub 2016 Dec 9. — View Citation

Torossian A, Van Gerven E, Geertsen K, Horn B, Van de Velde M, Raeder J. Active perioperative patient warming using a self-warming blanket (BARRIER EasyWarm) is superior to passive thermal insulation: a multinational, multicenter, randomized trial. J Clin Anesth. 2016 Nov;34:547-54. doi: 10.1016/j.jclinane.2016.06.030. Epub 2016 Jul 17. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Intraoperative body temperature During the operation, the body temperature of the patients will be measured at 15-minute intervals from the beginning of the incision to the end of the operation.
Patients' body temperature will be measured tympanically using Braun ThermoScan® 7 Age Precision®.
Throughout the operation (min.1 hours) (max. 2 hours)
Secondary Temperature comfort perception (before being sent to the operating room) Temperature Comfort Perception Scale: Verbal Numeric Rating Scale (VNRS) between 1 and 10 (0=very comfortable; 10=very uncomfortable) will be used to objectively evaluate the temperature comfort perception of the patients. Before being sent to the operating room (min.15 minutes) (max.45 minutes)
Secondary Postoperative body temperature Body temperatures will be measured at 15-minute intervals until patients arrive at the Postanesthesia Care Unit and are sent to the clinic. Until admission to the Postanaesthesia Care Unit and sent to the clinic (min.15 minutes) (max.30 minutes)
Secondary Hemodynamic parameters (Blood pressure) During the surgery, the blood pressure of the patients will be monitored every 15 minutes. From the beginning of the incision to the end of the surgery.(min.1 hours) (max. 2 hours)
Secondary Hemodynamic parameters (pulse) During the surgery, the patients' heart rate will be monitored every 15 minutes. From the beginning of the incision to the end of the surgery.(min.1 hours) (max. 2 hours)
Secondary Hemodynamic parameters (oxygen saturation) During the surgery, the oxygen saturation of the patients will be monitored every 15 minutes. From the beginning of the incision to the end of the surgery.(min.1 hours) (max. 2 hours)
Secondary Temperature comfort perception (before sending to the clinic) Temperature Comfort Perception Scale: Verbal Numeric Rating Scale (VNRS) between 1 and 10 (0=very comfortable; 10=very uncomfortable) will be used to objectively evaluate the temperature comfort perception of the patients. Before being sent to the clinic (min.15 minutes) (max.30 minutes)
Secondary Patient Comfort The comfort levels of the patients who are decided to be taken from the PACU to the clinic will be measured with the Perianesthesia Comfort Scale. The highest total score that can be obtained from the scale is 144, and the lowest total score is 24. The average value is determined by dividing the total score obtained by the number of scale items, and the result is indicated in the 1-6 distribution. Low score indicates bad comfort, high score indicates good comfort. Before being sent to the clinic (min.15 minutes) (max.30 minutes)
See also
  Status Clinical Trial Phase
Completed NCT03542981 - Interferential Current Therapy After Total Knee Arthroplasty N/A
Recruiting NCT04458480 - Effect of Fast Inpatient Rehabilitation After TKA
Completed NCT03286543 - Electrical Stimulation for the Treatment of Pain Following Total Knee Arthroplasty Using the SPRINT Beta System N/A
Recruiting NCT06061367 - Muscles Strength and Gait Parameteres After TKA
Recruiting NCT05391828 - Persona MC vs PS RCT With ROSA N/A
Active, not recruiting NCT04850300 - Efficiency Assessment of the Methodology for the Follow-up of Patients With Knee Prostheses Phase 3
Completed NCT05635916 - Trial of Liposomal Bupivacaine for TKA Phase 4
Enrolling by invitation NCT05130216 - Genicular Nerve Radiofrequency Ablation for Chronic Knee Pain After Total Knee Arthroplasty
Withdrawn NCT02495805 - Ultrasound-guided Continuous Proximal Adductor Canal vs Continuous Femoral Nerve Block for Postoperative Pain Control and Rehabilitation Following Total Knee Arthroplasty N/A
Completed NCT03206554 - Local Infiltration Analgesia in Total Knee Arthroplasty Phase 2
Completed NCT01616836 - Optimizing Pain and Rehabilitation After Knee Arthroplasty Phase 3
Withdrawn NCT01511211 - Duration of Leg Nerve Blocks With Dexamethasone Added to Local Anesthetic Phase 4
Not yet recruiting NCT00958945 - Retrospective Chart Analysis in the Effective Use of FloSeal in Post-Operative Joint Replacements N/A
Completed NCT00985920 - Topical Tranexamic Acid for Total Knee Arthroplasty Phase 4
Completed NCT00761956 - A Study to Compare the NexGen CR and CR-Flex Knee Implants N/A
Completed NCT03289247 - Tissue Adhaesive in Wound Closure Following Primary Total Knee Arthroplasty N/A
Terminated NCT03316118 - US Guided GNB vs Saline Injection for TKA Phase 4
Recruiting NCT05962970 - Continuous Adductor Canal Block in Fast Track Total Knee Arthroplasty N/A
Completed NCT03317834 - Navio With Total Knee Arthroplasty
Enrolling by invitation NCT06188091 - Joint Movement to Increase Range of Motion in Knee Joint After Primary Total Knee Arthroplasty N/A