The Affecting Factors on Airway Temperature and Moisture

NCT04204746 | Completed

• 1 other identifier: E.90598
• Study Type: observational
• Target: 240
• Locations: 0 countries
• Sites: N/A

Brief Summary

There is no literature information about the flow rate of fresh gas mixture (air+O2) in the patients who underwent general anesthesia. Different flow rates of fresh gas mixture are used in both the investigator's hospital and the experiences of the anesthesiologists. It is aimed to study the effects of different fresh gas flow rates on the rate of temperature and moisture of the airway of patients who underwent general anesthesia.

Conditions

General Anesthesia

Keywords

general anesthesia; fresh gas; moisture; temperature; respiratory circuit

Outcome Measures

Primary Outcomes (1)

• Affect of two fresh gas flow rates (3lt/ 6lt min) on patients' airway temperature and humidity.

  We will evaluate if different fresh gas flows effect on patients' airway temperature and moisture. We will evaluate by using a thermo-hygrometer fixed on anesthesia circuit.

  2016-2018

Secondary Outcomes (1)

• Affect of different anesthetic gases (sevoflurane, desflurane) and drugs (propofol)on patients' airway temperature and humidity.

  2016-2018

Study Arms (2)

3 lt/min

Patients in the study were divided into two main groups according to the standard fresh gas flow administered (3-6 L/min). Each main group was then divided into subgroups as follows: sevoflurane + remifentanil, desflurane + remifentanil, or propofol + remifentanil (TIVA). These six groups were further divided into two groups according to use or non-use of a heat and moisture exchanger (HME) filter.

Other: We will observe and evaluate the temperature and moisture in the respiratory circuit by a thermo-hygrometer.

6 lt/min

Patients in the study were divided into two main groups according to the standard fresh gas flow administered (3-6 L/min). Each main group was then divided into subgroups as follows: sevoflurane + remifentanil, desflurane + remifentanil, or propofol + remifentanil (TIVA). These six groups were further divided into two groups according to use or non-use of a heat and moisture exchanger (HME) filter.

Other: We will observe and evaluate the temperature and moisture in the respiratory circuit by a thermo-hygrometer.

Interventions

We will observe and evaluate the temperature and moisture in the respiratory circuit by a thermo-hygrometer. OTHER

3 lt/min; 6 lt/min

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Patients who were aged between 18-65 years and underwent surgery with general anesthesia.

You may qualify if:

• Patients aged 18-65 years underwent general anesthesia -

Sponsors & Collaborators

• Selcuk University: lead

Related Publications (1)

• Ozcan IG, Onal O, Ozdemirkan A, Saltali A, Sari M. Effects of different fresh gas flows and different anesthetics on airway temperature and humidity in surgical patients: a prospective observational study. Med Gas Res. 2022 Jul-Sep;12(3):83-90. doi: 10.4103/2045-9912.330691.

  PMID: 34854418 DERIVED

Study Officials

• Ozkan Onal, Professor

  Selcuk University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: December 17, 2019
• First Posted: December 19, 2019
• Study Start: April 1, 2016
• Primary Completion: April 1, 2018
• Study Completion: April 1, 2018
• Last Updated: December 20, 2019

Record last verified: 2019-12

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
• Time Frame: The IPD and any additional supporting information will become available in starting 2 months after publication.