Phase-Specific Evaluation of Lung Mechanics and Ventilation Efficiency During Robotic Surgery: A Prospective Observational Cohort Study
Overview
- Phase
- Not Applicable
- Status
- Not yet recruiting
- Sponsor
- Ankara City Hospital Bilkent
- Enrollment
- 65
- Primary Endpoint
- Ventilation Efficiency Index (VEI) change across robotic surgery phases
Overview
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.
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Prospective
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts 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
Arms & Interventions
Robotic Surgery
Adult patients undergoing robotic surgery under general anesthesia with mechanical ventilation. Intraoperative respiratory mechanics and gas exchange parameters will be prospectively recorded during predefined phases of robotic surgery (T0-T4). Parameters include ventilatory settings, airway pressures, arterial blood gas values, and calculated indices such as mechanical power, driving pressure, static compliance, and ventilation efficiency index. The study evaluates phase-specific changes in lung mechanics and ventilation efficiency during robotic surgical procedures.
Intervention: Intraoperative Mechanical Ventilation Monitoring (Other)
Outcomes
Primary Outcomes
Ventilation Efficiency Index (VEI) change across robotic surgery phases
Time Frame: Intraoperative (T0-T4)
Evaluation of VEI changes between predefined intraoperative phases.
Secondary Outcomes
- Mechanical Power Change(intraoperative)
- Static Lung Compliance Change(intraoperative)
Investigators
Betül Güven
Assos. Prof
Ankara City Hospital Bilkent