| NCT ID | NCT07024420 |
| Status | Recruiting |
| Phase | — |
| Sponsor | Zhongda Hospital |
| Condition | Postoperative Pulmonary Complications (PPCs) |
| Study Type | INTERVENTIONAL |
| Enrollment | 686 participants |
| Start Date | 2025-10-09 |
| Primary Completion | 2027-11-30 |
Trial Parameters
Eligibility Fast-Check
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Brief Summary
The purpose of this trial is to investigate whether sigh ventilation strategy, combining sigh breaths, low tidal volume, and moderate PEEP levels, protects against major pulmonary complications within the first 7 postoperative days after cardiac surgery, as compared with conventional ventilation strategy with low tidal volume, and moderate PEEP levels.
Eligibility Criteria
Inclusion Criteria: * 18 years of age or older; * Elective cardiac surgery with cardiopulmonary bypass, aortic clamp and cardioplegia; * Written informed consent is obtained from patients and/or their legal representatives. Exclusion Criteria: * Emergence surgery; * Left ventricular assist device implantation; * Planned thoracotomy with one lung ventilation; * Undergo concurrent surgical procedures outside cardiology; * Neuromuscular illness; * Mechanical ventilation within the last 2 weeks before surgery, include CPAP and NIV; * Preoperative shock; * Preoperative Hypoxemia (PaO2\<60mmHg OR SpO2\<90% on ambient air); * Preoperative left ventricular ejection fraction \< 40%; * Systolic pulmonary artery pressure \> 50 mmHg.