Comparison of Esophageal and Tracheal Temperature in the Patients Using Breathing Circuit With Heated Wire Humidifier

NCT04817943 | Completed

• 1 other identifier: 05-2021-028
• Study Type: observational
• Target: 38
• Locations: 1 country
• Sites: 1

Brief Summary

When using a breathing circuit with heated wire humidifier, investigators will check if the temperature measured by the thermometer of the endotracheal tube is more than 0.25 degrees apart from the temperature measured by the esophageal thermometer. Through this, in the case of patients who need to use a breathing circuit with heated wire humidifier, investigators will find out whether it is appropriate to use an esophageal or endotracheal thermometer.

Conditions

The Patients Who Underwent General Anesthesia

Outcome Measures

Primary Outcomes (1)

• Esophageal and tracheal temperature measurement

  Esophageal and tracheal temperature measurement in patients undergoing surgery that requires more than 2 hours of general anesthesia and the use of breathing circuit with heated wire humidifier

  during operation

Interventions

Non applicable OTHER

When the patient enters the operating room, oxygen saturation, blood pressure, and electrocardiogram are monitored, and general anesthesia is induced using 1-2 mg/kg of 1% propofol. 0.8 mg/kg of rocuronium, a neuromuscular blocker, is injected intravenously, and a human endotracheal tube is intubated. A thermometer is attached to the inside of the double-layered endotracheal tube cuff, which measures the temperature in the trachea. After the endotracheal intubation is performed, the esophageal thermometer is inserted, and from this point, the temperature measured by the esophageal thermometer and the thermometer of the endotracheal tube are recorded. The temperature immediately after insertion of the esophageal thermometer is set as Tbaseline, and the temperature of the esophagus and trachea, the temperature of the operating room, and the temperature of breathing circuit with heated wire humidifier are recorded every 5 minutes from thereafter until the end of the operation.

Eligibility Criteria

• Age: 20 Years - 60 Years
• Sex: all
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

Among the patients undergoing surgery that requires more than 2 hours of general anesthesia and the use of a breathing circuit with heated wire humidifier

You may qualify if:

• males and females between the ages of 20 and 60 and meet the criteria for classification I and II of the American Society of Anesthesiology

You may not qualify if:

• Patients with a predisposition for bleeding
• Patients with a history of inability to insert an esophageal thermometer (esophageal varices, esophageal stenosis, esophageal malformation, and anatomical deformation after esophageal surgery)
• pregnant woman

Sponsors & Collaborators

• Pusan National University Yangsan Hospital: lead

Study Sites (1)

Pusan National University Yangsan Hospital

Yangsan, South Korea

Location

Study Officials

• Hee Young Kim, MD, PhD

  Department of Anesthesia and Pain Medicine, School of Medicine, Pusan National University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Clinical associate professor

Study Record Dates

• First Submitted: March 23, 2021
• First Posted: March 26, 2021
• Study Start: April 29, 2021
• Primary Completion: August 31, 2021
• Study Completion: August 31, 2021
• Last Updated: January 16, 2024

Record last verified: 2024-01

Locations

KR (1)