Robotic Surgery
Conditions
Brief summary
Robotic surgery requires pneumoperitoneum and specific surgical positioning such as steep Trendelenburg, reverse Trendelenburg, or supine positioning. These intraoperative conditions may lead to cranial displacement of the diaphragm, reduced lung compliance, and increased airway pressures, potentially impairing respiratory mechanics and gas exchange. Previous studies have primarily evaluated respiratory mechanics during robotic surgery at single time points or within specific surgical procedures. However, dynamic changes occurring during critical phases of robotic surgery have rarely been evaluated prospectively. This prospective observational cohort study aims to evaluate phase-specific changes in lung mechanics and ventilation efficiency during robotic surgery. Key parameters including mechanical power (MP), ventilation efficiency index (VEI), static compliance, and driving pressure will be analyzed across predefined intraoperative phases.
Interventions
Prospective recording of ventilatory parameters and respiratory mechanics during robotic surgery under general anesthesia. Measurements will be obtained at predefined surgical phases (after intubation, pneumoperitoneum initiation, steep Trendelenburg positioning, undocking, and before extubation). Recorded parameters include tidal volume, respiratory rate, peak airway pressure, plateau pressure, positive end-expiratory pressure, arterial blood gas measurements, and calculated indices such as mechanical power, driving pressure, static compliance, and ventilation efficiency index.
Sponsors
Ankara City Hospital Bilkent
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Age ≥ 18 years * Patients undergoing robotic surgery * General anesthesia with mechanical ventilation * Written informed consent
Exclusion criteria
* Severe chronic pulmonary disease * Refusal to participate * Missing intraoperative ventilatory data
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Ventilation Efficiency Index (VEI) change across robotic surgery phases | Intraoperative (T0-T4) | Evaluation of VEI changes between predefined intraoperative phases. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Mechanical Power Change | intraoperative | Evaluation of mechanical power changes across surgical phases. |
| Static Lung Compliance Change | intraoperative | Evaluation of static compliance changes during robotic surgery. |
Countries
Turkey (Türkiye)
Outcome results
None listed