This study aims to evaluate the methodology and parameters of perioperative respiratory support (RS) and the frequency of postoperative pulmonary complications (PPCs) in the Russian Federation. The study will analyze respiratory support strategies, equipment availability, and their correlation with PPC outcomes in surgical patients.
Globally, around 230 million surgical procedures requiring general anesthesia and mechanical ventilation are performed annually. Postoperative pulmonary complications (PPCs) significantly impact clinical outcomes, increasing morbidity and hospitalization duration. Cohort studies have reported a 20-30% risk of PPCs in patients undergoing general anesthesia. Protective ventilation strategies, including low tidal volumes (6-8 mL/kg predicted body weight) and positive end-expiratory pressure (PEEP), have shown to reduce PPCs. However, high tidal volumes (10-15 mL/kg) remain prevalent in routine practice. The "RuVent-A" study will collect data on respiratory support methodologies, initial ventilation parameters, types of surgical interventions, and associated PPC rates in the Russian Federation. This observational study will analyze patient and equipment data across participating centers without altering routine clinical practices.
Study Type
OBSERVATIONAL
Enrollment
1,000
Incidence of Postoperative Pulmonary Complications (PPCs)
The frequency of postoperative pulmonary complications (PPCs) will be measured, including conditions such as atelectasis, hypoxemia, pneumonia, acute respiratory distress syndrome (ARDS), and bronchospasm. PPCs will be evaluated based on clinical and diagnostic criteria following surgery.
Time frame: 30 days after surgery
Level of end-expiratory pressure during anesthesia
The level of end-expiratory pressure during anesthesia used by the anesthesiologist will be assessed
Time frame: During surgery (intraoperative period).
Use of Alveolar Recruitment Maneuvers During Anesthesia
The frequency of alveolar recruitment maneuvers used during general anesthesia will be assessed.
Time frame: During surgery (intraoperative period).
Frequency of Non-Invasive Ventilation and High-Flow Oxygen Therapy Post-Extubation
The frequency of non-invasive ventilation (NIV) and high-flow oxygen therapy (HFOT) applied after extubation will be evaluated to determine their role in preventing PPCs.
Time frame: 30 days after surgery
Duration of Intraoperative and Postoperative Mechanical Ventilation
Duration of Intraoperative and Postoperative Mechanical Ventilation
Time frame: Intraoperative and up to 24 hours postoperatively.
Incidence of Hypoxemia Post-Surgery
The occurrence of hypoxemia (SpO2 \<92%) after surgery will be documented, along with the requirement for oxygen therapy.
Time frame: 30 days after surgery
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Level of inspiratory oxygen fraction during anesthesia
The level of inspiratory oxygen fraction during anesthesia used by the anesthesiologist will be assessed
Time frame: During surgery (intraoperative period).
Level of tidal volume during anesthesia
The level of tidal during anesthesia used by the anesthesiologist will be assessed
Time frame: During surgery (intraoperative period).