Why the study?
Postoperative pulmonary complications still contribute to morbidity after CABG surgery despite advances in anaesthesia and surgical techniques.
Does Pressure Controlled Ventilation (PCV) improve intraoperative PaO2/FiO2 ratio compared to Volume Controlled Ventilation (VCV) in patients undergoing CABG surgery?
Does Pressure Controlled Ventilation (PCV) improve intraoperative PaO2/FiO2 ratio compared to Volume Controlled Ventilation (VCV) in patients undergoing CABG surgery?
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PCV mode provides better oxygenation (higher PaO2/FiO2 ratio) at the end of CABG surgery compared to VCV mode, though it does not significantly alter postoperative ICU stay or chest X-ray findings.
Introduction: Despite numerous advances in anaesthesia, surgical techniques, and postoperative care for coronary artery bypass graft (CABG) surgery, postoperative pulmonary complications still account for postoperative morbidity. Primary aim of the study was to compare two modes of ventilation on gas exchange in form of PaO2/FiO2 ratio in intraoperative period at time of expected significant respiratory alterations during CABG surgery. We compared VCV and PCV mode intra operatively as both ventilation modes are standard of care. It was also intended to compare effects of these modes on lungs to diagnose significant respiratory changes with Chest X ray findings, and postoperative length of ICU stay.
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Baliarsingh et al. (2020) studied this question.
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