Respiratory Measurement Using Infrared Camera and Electrical Impedance Tomography for Sedation in Patients Undergoing TURP/TURB Under Spinal Anesthesia
Study Details
Study Description
Brief Summary
Tidal volume may be the most important technical indicator for ventilation. Measuring tidal volume can be used as an indicator of how effective a patient's gas exchange is, and can also be used as a predictive indicator to indirectly predict the severity of respiratory disease. This tidal volume can be measured using spirometry and pneumotachograph, and the lung function of the patient can be assessed directly or indirectly through the respiratory volume and air flow velocity. In addition, the measurement itself can change the patient's breathing pattern, and for accurate measurement, it has to be carried out in a certain space, so there is a limitation in that it is difficult to measure in a hospital bed or in a laboratory. To overcome this limitation, various methods have been introduced. The basic principle is that the tidal volume is directly proportional to the movement of the chest and proportional to the change in the length of the circumference of the chest. Over the past decade, several studies have been conducted to measure respiratory mechanics in a non-invasive way. Methods using thoracic impedance, acoustic monitoring, strain gauges, and magnetometers have been developed. Non-invasive, non-contact imaging methods have also been developed, such as thermal image, structured light plethysmography (SLP), and optoelectronic plethysmography (OEP). Therefore, in this study, the thoracic movement due to respiration was measured with a non-invasive method (IR camera), and the accuracy was compared through the impedance change obtained through impedance tomography to evaluate the effectiveness of the non-invasive equipment.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: Noncontact Respiration monitoring group
|
Device: IR Camera
the respiration parameters are measured using an IR camera.
|
| Experimental: Contact Respiration monitoring group
|
Device: Electrical Impedance Tomography
the respiration parameters are measured using an electrical impedance tomograhy.
|
Outcome Measures
Primary Outcome Measures
- The accuracy of respiration measurements [Experiment period about 20 minutes]
The accuracy respiration measurements between IR camera and electrical impedance tomography.
Eligibility Criteria
Criteria
Inclusion Criteria:
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A male aged 19 years or older
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normal BMI
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patients undergoing transurethral prostate or cystectomy under spinal anesthesia
Exclusion Criteria:
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Presenting alteration in respiratory function detected by functional analysis of lung volume and capacity- pneumonectomy patient, severe ipsilateral destroyed lung patient
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Inability to understand or perform the procedure.
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ASA class 4, 5
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Yonsei University Health System, Severance Hospital | Seoul | Korea, Republic of |
Sponsors and Collaborators
- Yonsei University
Investigators
- Principal Investigator: Jeongmin Kim, Severance Hospital
Study Documents (Full-Text)
None provided.More Information
Publications
- Kim J, Kwon JH, Kim E, Yoo SK, Shin CS. Respiratory measurement using infrared thermography and respiratory volume monitor during sedation in patients undergoing endoscopic urologic procedures under spinal anesthesia. J Clin Monit Comput. 2019 Aug;33(4):647-656. doi: 10.1007/s10877-018-0214-4. Epub 2018 Nov 14. Erratum In: J Clin Monit Comput. 2021 May;35(3):675.
- Kwon J, Kwon O, Oh K, Kim J, Shin CS, Yoo SK. Thermodiluted relative tidal volume estimation using a thermal camera in operating room under spinal anesthesia. Biomed Eng Online. 2022 Sep 7;21(1):64. doi: 10.1186/s12938-022-01028-0.
- 4-2022-0864