Measurement of breathing by skin electrodes using electrical impedance tomography

• Conditions: Hypoventilation; I02.783.830

• Registration Number: RBR-8vrj4xg
• Lead Sponsor: niversidade de São Paulo

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Completion: 2021-10-31
• Study Start: 2021-12-02
• Last Update Posted: 29 May 2023

Recruitment & Eligibility

• Status: Recruitment completed
• Sex: Not specified
• Target Recruitment: Not specified

Inclusion Criteria

Age above six years; Either gender

Exclusion Criteria

Individuals with cardiac pacemaker or other implanted electronic device; Individuals with skin lesions in the thoracic area where the electrical impedance tomography belt will be placed; Individuals with impaired functional capacity (NYHA level IV), which would suffer with fatigue and discomfort during the tests; Pregnancy; Individuals who refused the participation on the study by the means of the non-signature on the consent form (and its equivalent with individuals under the age of 18 years and their parents)

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Agreement between the estimated tidal volume (ml) using electrical impedance tomography and the tidal volume obtained using a flow sensor (ml), with mean bias under 50ml

Secondary Outcome Measures

Name	Time	Method
Agreement between the estimate from tidal volume calibrated by pneumotachograph at spontaneous breathing (ml) and of the tidal volume estimated at different pressure levels (ml), with mean bias under 50ml;Agreement between the estimated tidal volume (ml) calibrated in sitting position and the same parameter obtained in supine position, with mean bias lower than 50ml;Comparison between tidal volume estimate (ml) based on electrical impedance tomography signals and an algorithm that estimates tidal volume (ml) adding anthropometric information