Establishing Optimal PEEP Setting for Obese Patients in the Steep Trendelenburg Position

Completed · Not applicable

Conditions studied: Obesity

In brief

The purpose of this study is to determine whether the Enlight 2100 electrical impedance tomography (EIT) belt can optimize positive end-expiratory pressure (PEEP) during surgery better than standard anesthesia machines.

Key facts

Study ID

NCT06518239

Run by

University of Missouri-Columbia

People needed

30

Starts

2024-11-18

Expected to finish

2026-03-30

Last updated by the study team

2026-06-11

Who can join

Age: 19 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• BMI ≥ 40 kg/m2
• Age > 18 years
• Scheduled for elective laparoscopic abdominal surgery in the steep Trendelenburg position.
• Able to provide informed consent.

You may not qualify if…

• Currently pregnant.
• Presence of pacemaker, neurostimulator, spinal cord stimulator, or implantable cardioverter-defibrillator.
• Skin ulcerations on upper torso near the belt placement.
• Presence of phrenic nerve palsy or other diaphragm conditions.
• Thoracic circumference > 134 cm.
• Tracheomalacia.
• Inability to speak and understand English.

Where it is running

• University Hospital — Columbia, Missouri, United States

Full record on ClinicalTrials.gov

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