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Bariatric Electrical Impedance Tomography

NCT05187039 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2023-03-09

No results posted yet for this study

Summary

This study investigates under controlled conditions the variation of poorly ventilated lung units (silent spaces) in obese patients scheduled for laparoscopic bariatric surgery in the perioperative phase.

Conditions

  • Anesthesia

Interventions

OTHER

Electrical impedance tomography during anesthesia

Thoracic electrical impedance tomography measurements ( min each) will be performed at the following time points: before induction of the anaesthesia; before the surgical procedure when the induction is terminated and recruitment manoeuvers have been performed; after the termination of the surgical procedure; before transport to the Post anaesthesia Care Unit (PACU); before the discharge from the PACU after 2 hours of monitoring. An additional thoracic EIT-measurement will be performed before discharge at home. For this, resulting potential differences are measured, and impedance distribution sampled at 30 Hz will be calculated. Relative change in poorly ventilated lung regions (silent spaces) and end-expiratory lung impedance (EELI) and measures of ventilation inhomogeneity will be calculated using customised code (Matlab R2021a, The MathWorks, Nattick, Massachusetts, USA).

Sponsors & Collaborators

  • Insel Gruppe AG, University Hospital Bern

    lead OTHER

Principal Investigators

  • Matthias Braun, MD · University of Bern

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-10-19
Primary Completion
2022-11-01
Completion
2023-03-08

Countries

  • Switzerland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05187039 on ClinicalTrials.gov