NCT05263791

Brief Summary

This study is a multi-center clinical study of non-invasive medical device in Taiwan. After pre-anaesthesia evaluation, subjects who are suitable for intravenous general anesthesia (IVG) and age 20 years or older will be recruited in this clinical study. 150 subjects will be recruited at this site. The total 300 subjects will be recruited in other clinical centers at En Chu Kong Hospital simultaneously and Cathay General Hospital and Doctor Huang, Chien-Chung of the Anesthesia Department of MacKay Memorial Hospital is the PI of this study. The objective of this study is to evaluate the respiratory rate monitoring performance of "Airmod" respiratory monitoring assistant software, used with the "AccurSound Electronic Stethoscope AS-101" (TFDA Certificate No. 007347) compared to the "Medtronic Capnostream™35 Portable Respiratory Monitor" (TFDA Certificate No. 032283), hereinafter referred to as "comparison method", is non-inferiority than the comparison method. In addition, in order to improve the quality of patient care and ensure safety, this study will also synchronously record the breathing sounds from the " AccurSound Electronic Stethoscope " during the study with the respiratory symptoms of the comparison method, such as: asthma sounds, phlegm sounds, airway infiltration, water accumulation, obstructive sounds, respiratory arrest and respiratory tract edema, and analyze the vital signs for further improvement in the future. Primary Objective: To evaluate accuracy and performance of respiratory rate (RR) measurement from Airmod compared to the comparison method. The primary objective is to establish the non-inferiority. Secondary Objectives: 1. To assess the accuracy of respiratory ate measurement by Airmod comparison with manual-scored auscultation sound during the less sensitive period of Capnography on the comparison method. 2. To measure the agreement between AirRR\* and ManCRR\*. 3. To evaluate the response time of the first breath detection followed by administration of jaw thrust during the apnea period. The 3rd secondary objective is to compare the response time of Airmod versus the comparison method. 4. To compare the influence of subjects to variated breath rates on respiratory rate monitoring in bpm as measured by Airmod, manual-scored and the Capnostream™35. 5. To evaluate the safety and usability of Airmod. \* AirRR Airmod-scored auscultation sound generated from AS-101 \* ManCRR Manual-scored Capnography (ManCRR)originated from CapnostreamTM35 (K150272, Medtronic)

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
284

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Dec 2021

Geographic Reach
1 country

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 16, 2021

Completed
27 days until next milestone

First Submitted

Initial submission to the registry

January 12, 2022

Completed
2 months until next milestone

First Posted

Study publicly available on registry

March 3, 2022

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 27, 2022

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2023

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

November 19, 2024

Completed
Last Updated

November 19, 2024

Status Verified

September 1, 2024

Enrollment Period

10 months

First QC Date

January 12, 2022

Results QC Date

March 1, 2024

Last Update Submit

September 3, 2024

Conditions

Keywords

AirmodRespiratory RateDeep learningAuscultation sound

Outcome Measures

Primary Outcomes (1)

  • Test of the Difference Between airRR and mancRR

    The mean difference is based on the comparative pair (reference: mancRR - device under test: airRR) (unit: BPM) The measurement of airRR (airmod recorded breathing rate per minute: BPM ) (minimal: 4 BPM, maximal: 35BPM) The measurement of mancRR (manual scored capnography breathing rate per minute: BPM) (minimal : 0 BPM, maximal 39BPM)

    up to 4 hours

Secondary Outcomes (5)

  • Analysis to Assess the Accuracy of Respiratory Rate Measurement by Airmod in Comparison With Manual-scored Auscultation Sound During the Less Sensitive Period of Capnography on Capnostream™35

    up to 4 hours

  • Analysis to Measure the Agreement Between AirRR and ManCRR (Limits of Agreement and Bland-Altman Plots)

    up to 4 hours

  • Analysis to Evaluate the Response Time of the First Breath Detection Followed by Administration of Jaw Thrust During the Apnea Period

    up to 4 hours

  • Analysis to Compare the Influence of Subjects to Variated Breath Rates on Respiratory Rate Monitoring in Bpm as Measured by Airmod, Manual-scored and Capnostream™35

    up to 4 hours

  • Safety and Usability of Airmod.

    In the study , All participants spend less than 30 min writing thesis questionnaire.

Study Arms (1)

Airmod

EXPERIMENTAL

The experimental device are installed in the same patient as the reference device to compare the non-inferiority of the respiratory rate measurement.

Device: Airmod

Interventions

AirmodDEVICE

Both of the respiratory rate monitor (including experimental and reference device) are installed on the enrolled patients. The practitioners can clearly read the result of both devices.

Airmod

Eligibility Criteria

Age20 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Provision of signed and dated informed consent form.
  • Stated willingness to comply with all study procedures and availability for the duration of the study.
  • Male or female with at least 20 years of age.
  • Fit for intravenous general anesthesia (IVG) as assessed by pre-anesthesia evaluation.

You may not qualify if:

  • Presence of neck pain or injuries.
  • Under the use of high-flow nasal cannula ventilation. Patients with advanced airway management equipment. (For instance, Supraglottic airway device, LMA, Endotracheal tube.) Some equipment, such as High Flow Nasal Cannula (HFNC), CPAP, suction machine, could continually make noise in the patient's airway, affecting auscultation and RR measurement.
  • Unable to wear Airmod and Capnostream™35 device related accessories at the investigator's discretion.
  • As a vulnerable population, including legal incapacity or evidence that a subject cannot understand the purpose and risks of the study, regardless of authorized representative support.
  • Unwilling or unable to comply fully with study procedures (including non-toleration of the capnography cannula) due to any disease condition which can raise doubt about compliance and influencing the study outcome.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

En Chu Kong Hospital

New Taipei City, 237, Taiwan

Location

MacKay Memorial Hospital

Taipei, 10491, Taiwan

Location

Cathay General Hospital

Taipei, 106, Taiwan

Location

Related Publications (2)

  • Atkins JH, Mandel JE. Performance of Masimo rainbow acoustic monitoring for tracking changing respiratory rates under laryngeal mask airway general anesthesia for surgical procedures in the operating room: a prospective observational study. Anesth Analg. 2014 Dec;119(6):1307-14. doi: 10.1213/ANE.0000000000000362.

    PMID: 25025587BACKGROUND
  • Hsu FS, Huang SR, Huang CW, Huang CJ, Cheng YR, Chen CC, Hsiao J, Chen CW, Chen LC, Lai YC, Hsu BF, Lin NJ, Tsai WL, Wu YL, Tseng TL, Tseng CT, Chen YT, Lai F. Benchmarking of eight recurrent neural network variants for breath phase and adventitious sound detection on a self-developed open-access lung sound database-HF_Lung_V1. PLoS One. 2021 Jul 1;16(7):e0254134. doi: 10.1371/journal.pone.0254134. eCollection 2021.

    PMID: 34197556BACKGROUND

Results Point of Contact

Title
Chien-Chung Huang
Organization
MacKay Memorial Hospital

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 12, 2022

First Posted

March 3, 2022

Study Start

December 16, 2021

Primary Completion

September 27, 2022

Study Completion

September 1, 2023

Last Updated

November 19, 2024

Results First Posted

November 19, 2024

Record last verified: 2024-09

Data Sharing

IPD Sharing
Will not share

Locations