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Comparison of two methods for analyzing electrical impedance tomography (EIT) data in patients undergoing elective upper abdominal surgery at risk of postoperative pulmonary complications (PPC): asymmetric versus X,Y-symmetric determination of the lung boundary.

Comparison of two methods for analyzing electrical impedance tomography (EIT) data in patients undergoing elective upper abdominal surgery at risk of postoperative pulmonary complications (PPC): asymmetric versus X,Y-symmetric determination of the lung boundary.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00035354
Enrollment
96
Registered
2025-01-22
Start date
2025-01-10
Completion date
Unknown
Last updated
2025-10-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

C22 C23 C24 C25 K81 C78.7 D18.03

Interventions

Group 1: EIT data analysis using “asymmetric” determination of the lung boundary Group 2: EIT data analysis using “X,Y-symmetric” determination of the lung boundary

Sponsors

Klinik für Anästhesiologie, Universitätsmedizin Mainz
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: - No simultaneous participation in another study - elective upper abdominal surgery by laparotomy under general anesthesia (gastrectomy, splenectomy, pancreatic surgery, partial liver resection, hemihepatectomy or open cholecystectomy)

Exclusion criteria

Exclusion criteria: - existing pregnancy - Emergency patients - Patients with partial lung resections - Patients with cardiac surgery performed = 3 months ago - Patients with pacemakers, implanted defibrillators or other electrically active implants - Skin damage or dressings in the area of the electrode level - Patients with an unstable spine - Patients with a BMI > 50 kg/m2 (morbid obesity)

Design outcomes

Primary

MeasureTime frame
Difference between asymmetric and X,Y-symmetric calculation of the EIT data—

Secondary

MeasureTime frame
Correlation of ventilation distribution and ventilation inhomogeneity with the occurrence of postoperative pulmonary complications depending on the method of determining the lung boundaries—

Countries

Germany

Contacts

Public ContactMichael Schuster

Klinik für Anästhesiologie

michael.schuster@unimedizin-mainz.de+49 6131 175987

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026