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Apply of optimized PEEP derived using EIT (airtom®)

Maintain positive end expiratory pressure at 5 cmH2O throughout the surgery.

conventional PEEP

Immediately after induction of anesthesia, the patient remains unapplied to PEEP. After pneumoperitoneum + Trendelenburg posture, an appropriate PEEP value is derived using electrical impedance tomography (airtom®). And then derived value ( = optimized PEEP value) is applied until the end of the operation.

optimized PEEP

Chul-Ho Chang

Jiwon Lee

Steep trendelenburg posture or pneumoperitoneum for surgery causes ventilation problems during surgery, so finding a way to overcome is a challenging task for anesthesiologists. In this study, for patients undergoing robot assisted laparoscopic prostatectomy under general anesthesia, anesthesia is going to perform by applying conventional positive end-expiratory pressure (PEEP 5cmH2O) or individually determined positive end-expiratory pressure values for each patient using electrical impedance tomography. We plan to compare intraoperative ventilation through arterial blood gas analysis to find out the way to improve intraoperative ventilation.

Effect of Optimized PEEP on Mechanical Ventilation During Robot Assisted Laparoscopic Prostatectomy

Application of Individualized Positive End-expiratory Pressure Using Electrical Impedance Tomography (EIT) in Patients Undergoing Robot Assisted Laparoscopic Prostatectomy : a Randomized Controlled Study

PaO2/FiO2 is the ratio of arterial oxygen partial pressure (PaO2) to oxygen fraction (FiO2), and is a commonly used indicator for evaluating pulmonary ventilation and diagnosing lung damage. Using this index, it is possible to determine whether oxygen obtained through the lungs is well delivered to the blood or not. It can be easily obtained by arterial blood gas analysis without complicated formulas or graphs.

partial pressure (PaO2) to oxygen fraction (FiO2), and is a commonly used indicator for evaluating pulmonary ventilation and diagnosing lung damage. Using this index, it is possible to determine whether oxygen obtained through the lungs is well delivered to the blood or not. It can be easily obtained by arterial blood gas analysis without complicated formulas or graphs.

inhomogeneity index : this index calculated from tidal EIT images representing the difference in impedance between the end of inspiration and the end of expiration.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Effect of Optimized PEEP on Mechanical Ventilation During Robot Assisted Laparoscopic Prostatectomy	NCT05669443	Prostate Cancer	conventional PE... optimized PEEP	20 Years - 70 Years	Gangnam Severance Hospital
Effect of Optimized PEEP on Mechanical Ventilation During Robot Assisted Laparoscopic Prostatectomy	NCT05669443	Prostate Cancer	conventional PE... optimized PEEP	20 Years - 70 Years	Gangnam Severance Hospital

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