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PEEP Setting Using EIT in Robotic Surgery

Optimal PEEP Based on Electrical Impedance Tomography Derived Dorsal Fraction of Ventilation in Robot Assisted Laparoscopic Surgery, a Randomized Controlled Trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1052260044
Enrollment
50
Registered
2026-05-11
Start date
2026-05-28
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Robot Assisted Laparoscopic Surgery Robot Assisted Laparoscopic Surgery

Interventions

This clinical study assigns patients to two groups based on the method of setting PEEP after the recruitment maneuver (RM). EIT will be applied to both groups. Intervention Group: DFV guided PEEP Grou
record details. Maintain PEEP at 5 cmH2O even after pneumoperitoneum ends and the patient is repositioned.

Sponsors

Miyazaki Atsushi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients meeting all of the following criteria will be eligible for inclusion in this study. 1. Patients scheduled to undergo robot-assisted laparoscopic abdominal surgery (intra-pelvic or lower abdominal surgery) under general anesthesia. 2. Patients aged 18 years or older but under 80 years at the time of informed consent acquisition. 3. Patients with a moderate or higher risk of postoperative pulmonary complications. 4.Patients classified as ASA Physical Status I to III 5. Patients from whom written informed consent has been obtained

Exclusion criteria

Exclusion criteria: Patients meeting any of the following criteria will be excluded. 1. Patients with severe chronic respiratory disease (e.g., severe COPD, receiving home oxygen therapy) 2. Patients with severe obesity (BMI >= 35kg/m2) 3.Pregnant patients 4. Patients with heart failure (NYHA class 3 or higher) or severe arrhythmia 5. Patients with implanted electronic devices such as pacemakers, defibrillators, or neurostimulators 6. Cases where EIT belt application is difficult due to torso deformities 7. Patients with a tracheostomy 8. Cases deemed inappropriate by the principal investigator or sub-investigator

Design outcomes

Primary

MeasureTime frame
P/F ratio prior to extubation (T3) T0: After induction of anesthesia T1: After positioning and initiation of pneumoperitoneum, following recruitment maneuver (RM) PEEP set via DFV, 5 minutes later T2: Immediately before pneumoperitoneum release T3: Prior to extubation

Secondary

MeasureTime frame
Efficacy Evaluation Items T1-T2 P/F ratio The following measurements from T1-T3 Intraoperative respiratory dynamics indicators: Driving Pressure (Plateau Pressure - PEEP), Peak Airway Pressure, Mean Airway Pressure, Lung Compliance Arterial Blood Gas Analysis Values: SaO2, PaO2, PaCO2 Postoperative pulmonary complications (PPC) within 7 days Safety Evaluation Items Incidence rate of device-related adverse events occurring from the day of surgery through the observation period in study subjects who received protocol treatment among all enrolled patients

Contacts

Public ContactAtsushi Miyazaki

Kobe university hospital

amiyazak@med.kobe-u.ac.jp+81-78-382-6172

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026