Flow- Versus Volume-controlled Ventilation During Robot-assisted Laparoscopic Radical Prostatectomy

Flow- Versus Volume-controlled Ventilation During Robot-assisted Laparoscopic Radical Prostatectomy

During robot-assisted laparoscopic radical prostatectomy (RALRP), patients are placed under general anesthesia and supported with mechanical ventilation. In this study, the effects of two different ventilatory strategies-flow-controlled ventilation (FCV) and volume-controlled ventilation (VCV)-were compared. Using electrical impedance tomography (EIT) to provide real-time assessment of lung status and to guide individualized positive end-expiratory pressure (PEEP) settings, we investigated whether FCV offers superior oxygenation and improved respiratory system mechanics compared with VCV.

Inclusion Criteria:

• Male patients aged 18 years or older
• American Society of Anesthesiologists physical status (ASA-PS) class I-III
• Scheduled for robot-assisted laparoscopic radical prostatectomy (RALRP)
• Provided written informed consent to participate in the study

Exclusion Criteria:

• Patients who declined to participate or withdrew consent
• Conversion from robot-assisted laparoscopic radical prostatectomy to open surgery
• Reoperation within 7 days postoperatively
• Chronic pulmonary disease
• Implanted cardiac devices
• Congestive heart failure New York Heart Association III/IV
• Severe haemodynamic instability after induction of anaesthesia