Cardiac SurgeryNCT07623109
Individualized PEEP and Pulmonary Complications in On-Pump CABG
A study testing Driving pressure-based personalized PEEP strategy and Conventional lung protective mechanical ventilation strategy in people with Cardiac Surgery and Mechanical Power, run by Bursa City Hospital at 1 site in Turkey (Türkiye).
Trial summary
Postoperative pulmonary complications (PPCs) are an important cause of morbidity and mortality after major surgery and are frequently observed in cardiac surgery patients undergoing cardiopulmonary bypass (CPB). Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Cardiac Surgery, Mechanical Power, Postoperative Pulmonary Complications (PPCs)
- What is being tested?
- Driving pressure-based personalized PEEP strategy and Conventional lung protective mechanical ventilation strategy
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 80 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 15 May 2026to 15 Jul 2026
- Phase
- Interventional
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Patients with ASA physical status II-III who are scheduled to undergo elective open-heart surgery via on-pump median sternotomy will be included in the study.
Patients scheduled for emergency surgery, those planned to undergo off-pump cardiac surgery, patients with a history of myocardial infarction within the last 3 months, patients with advanced COPD, patients with an ARISCAT score of 44 or higher, patients with a BMI of 35 kg/m² or higher, patients with NYHA class IV status, patients receiving preoperative immunotherapy, and patients with severe hepatic or renal failure will be excluded from the study.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
İrem Aydoğmuş contact
Turkey (Türkiye)1 site
Bursa City Hospital
Bursa, nilüfer, 16000
eralp cevikkalp, 905054554875, eralpcevikkalp@hotmail.com
About this study
Official title: Effect of Individualized PEEP Guided by Driving Pressure and Mechanical Power on Postoperative Pulmonary Complications in On-Pump CABG: A Randomized Controlled Trial
Postoperative pulmonary complications (PPCs) are an important cause of morbidity and mortality after major surgery and are frequently observed in cardiac surgery patients undergoing cardiopulmonary bypass (CPB). These complications are associated with prolonged mechanical ventilation, longer intensive care unit and hospital stays, increased healthcare costs, and higher mortality (1,2).
Intraoperative lung-protective ventilation strategies have traditionally focused on individual parameters such as low tidal volume, positive end-expiratory pressure (PEEP), plateau pressure, and driving pressure. However, the effects of these parameters on postoperative pulmonary outcomes in cardiac surgery patients remain unclear. In particular, PEEP- and driving pressure-guided approaches are controversial in terms of feasibility and safety in patients undergoing CPB, who may be hemodynamically vulnerable.
Read more
Mechanical power is a comprehensive parameter that reflects the total energy delivered to the respiratory system per unit of time by integrating ventilatory variables such as tidal volume, airway pressures, respiratory rate, and flow. Therefore, mechanical power may provide a more comprehensive assessment of the mechanical load applied to the lungs compared with individual ventilatory parameters. Previous studies have reported that higher mechanical power values may be associated with lung injury, postoperative pulmonary complications, and mortality (3).
The aim of this study is to evaluate the effect of monitoring mechanical power during perioperative mechanical ventilation on postoperative pulmonary complications in patients undergoing cardiac surgery with cardiopulmonary bypass. The study hypothesis is that a mechanical power-based ventilation approach may reduce the incidence of PPCs compared with strategies based on conventional ventilation parameters.
Read the detailed description
Postoperative pulmonary complications (PPCs) are an important cause of morbidity and mortality after major surgery and are frequently observed in cardiac surgery patients undergoing cardiopulmonary bypass (CPB). These complications are associated with prolonged mechanical ventilation, longer intensive care unit and hospital stays, increased healthcare costs, and higher mortality (1,2).
Intraoperative lung-protective ventilation strategies have traditionally focused on individual parameters such as low tidal volume, positive end-expiratory pressure (PEEP), plateau pressure, and driving pressure. However, the effects of these parameters on postoperative pulmonary outcomes in cardiac surgery patients remain unclear. In particular, PEEP- and driving pressure-guided approaches are controversial in terms of feasibility and safety in patients undergoing CPB, who may be hemodynamically vulnerable.
Mechanical power is a comprehensive parameter that reflects the total energy delivered to the respiratory system per unit of time by integrating ventilatory variables such as tidal volume, airway pressures, respiratory rate, and flow. Therefore, mechanical power may provide a more comprehensive assessment of the mechanical load applied to the lungs compared with individual ventilatory parameters. Previous studies have reported that higher mechanical power values may be associated with lung injury, postoperative pulmonary complications, and mortality (3).
The aim of this study is to evaluate the effect of monitoring mechanical power during perioperative mechanical ventilation on postoperative pulmonary complications in patients undergoing cardiac surgery with cardiopulmonary bypass. The study hypothesis is that a mechanical power-based ventilation approach may reduce the incidence of PPCs compared with strategies based on conventional ventilation parameters.
- Being tested
- Driving pressure-based personalized PEEP strategy, Conventional lung protective mechanical ventilation strategy
- Keywords
- cardica surgery, mechanical power, postoperative pulmonary complications
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Driving pressure-based personalized PEEP strategyOther
After hemodynamic stability is achieved, the ventilator will be switched to volume-controlled mode with 6 ml/kg tidal volume , and a recruitment maneuver will be performed by gradually increasing PEEP to 20 cmH₂O. Subsequently, during the decremental PEEP trial, PEEP will be reduced by 2 cmH₂O every 20 seconds down to 6 cmH₂O, and ΔP (Pplat-PEEP) will be calculated at each step.
The PEEP level associated with the lowest ΔP on the ΔP-PEEP curve will be identified, a second recruitment maneuver will be performed, and PEEP will then be fixed at this level. Before sternotomy, the minimum PEEP value that provides the lowest driving pressure will be determined, and this value will be maintained throughout the perioperative period, except during cardiopulmonary bypass.
Conventional lung protective mechanical ventilation strategyOther
In volume-controlled mechanical ventilation, tidal volume will be set at 6 mL/kg and PEEP will be fixed at 5 cmH₂O. Ventilation will be maintained with these settings throughout the perioperative period, except during cardiopulmonary bypass. Mechanical power values will also be calculated and recorded during all these periods.
| Study group | Role | What they receive |
|---|---|---|
| Mechanical Power Group | Experimental | Driving pressure-guided individualized PEEP group Receives: Other: Driving pressure-based personalized PEEP strategy |
| Lung Protective Ventilation | Other | Conventional lung-protective ventilation group Receives: Other: Conventional lung protective mechanical ventilation strategy |
What is being measured
The primary outcome is the main question the study is designed to answer.
postoperative pulmonary complications
Postoperative pulmonary complications, including atelectasis, pneumonia, respiratory failure, pleural effusion, pneumothorax, and bronchospasm, will be assessed according to the EPCO(European Perioperative Clinical Outcome) criteria.
Measured: postoperative day 1,3,7
Secondary outcomes (5)
Inflammatory markers
Postoperative biochemical markers, including CRP, neutrophil count, lymphocyte count, procalcitonin, white blood cell count, IL-6, and TNF-α, will be evaluated.
Measured: Postoperative 1., 24, 48,72 hour and day 7
İCU lenght of stay
Duration of İCU lenght of stay
Measured: From postoperative ICU admission to ICU discharge, assessed up to 30 days
Duration of mechanical ventilation
Duration of mechanical ventilation
Measured: Time from intubation to successfull extubation
30 day mortality
30 day mortality
Measured: postoperative 30 day mortality
Hospital lenght of stay
Hospital lenght of stay
Measured: From hospital admission to hospital discharge, assessed up to 30 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Jun 2026
- Study start15 May 2026 (estimated)
- Primary completion15 Jun 2026 (estimated)
- Study completion15 Jul 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Cardiac SurgeryStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 80 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Bursa City Hospital
- Sponsor type
- Other government
- Responsible party
- Principal investigator, eralp çevikkalp, Bursa City Hospital
- Investigators
- eralp cevikkalp, Study chair, Burs City Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07623109
- Sponsor's protocol ID
- 25.03.2026 2026-6/7
- Other IDs
- 26-AKD-57
- Status last verified
- May 2026
- First submitted
- 18 May 2026
- Last updated
- 3 Jun 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Individual participant data will not be shared because of ethical and institutional restrictions related to patient confidentiality.
Publications
1. Association between driving pressure and development of postoperative pulmonary complications in patients undergoing mechanical ventilation for general anaesthesia: a meta-analysis of individual patient data Neto, Ary Serpa et al. The Lancet Respiratory Medicine, Volume 4, Issue 4, 272 - 280 2. Jammer I, Wickboldt N, Sander M, Smith A, Schultz MJ, Pelosi P, Leva B, Rhodes A, Hoeft A, Walder B, Chew MS, Pearse RM; European Society of Anaesthesiology (ESA) and the European Society of Intensive Care Medicine (ESICM); European Society of Anaesthesiology; European Society of Intensive Care Medicine. Standards for definitions and use of outcome measures for clinical effectiveness research in perioperative medicine: European Perioperative Clinical Outcome (EPCO) definitions: a statement from the ESA-ESICM joint taskforce on perioperative outcome measures. Eur J Anaesthesiol. 2015 Feb;32(2):88-105. 3. Gattinoni L, Tonetti T, Cressoni M, Cadringher P, Herrmann P, Moerer O, Protti A, Gotti M, Chiurazzi C, Carlesso E, Chiumello D, Quintel M. Ventilator-related causes of lung injury: the mechanical power. Intensive Care Med. 2016 Oct;42(10):1567-1575. doi: 10.1007/s00134-016-4505-2. Epub 2016 Sep 12. PMID: 27620287. 4. Li XF, Jiang RJ, Mao WJ, Yu H, Xin J, Yu H. The effect of driving pressure-guided versus conventional mechanical ventilation strategy on pulmonary complications following on-pump cardiac surgery: A randomized clinical trial. J Clin Anesth. 2023 Oct;89:111150. doi: 10.1016/j.jclinane.2023.111150. Epub 2023 Jun 10. PMID: 37307653.