Comparison of intraoperative volume and pressure-controlled ventilation modes in patients who undergo open heart surgery

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• 作者：Tülay Hoşten ; Alparslan Kuş ; Esra Gümüş…
• 关键词：Open heart surgery ; Ventilation ; Volume controlled ; Pressure controlled ; Oxygenation ; PaO2/fiO2 ratio
• 刊名：Journal of Clinical Monitoring and Computing
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：31
• 期：1
• 页码：75-84
• 全文大小：
• 刊物类别：Medicine
• 刊物主题：Anesthesiology; Intensive / Critical Care Medicine; Statistics for Life Sciences, Medicine, Health Sciences;
• 出版者：Springer Netherlands
• ISSN：1573-2614
• 卷排序：31

文摘

Respiratory problems occur more frequently in patients who undergo open heart surgery. Intraoperative and postoperative ventilation strategies can prevent these complications and reduce mortality. We hypothesized that PCV would have better effects on gas exchange, lung mechanics and hemodynamics compared to VCV in CABG surgery. Our primary outcome was to compare the PaO₂/FiO₂ ratio. Patients were randomized into two groups, (VCV, PCV) consisting of 30 individuals each. Two patients were excluded from the study. I/E ratio was adjusted to 1:2 and, RR:10/min fresh air gas flow was set at 3L/min in all patients. In the VCV group TV was set at 8 mL/kg of the predicted body weight. In the PCV group, peak inspiratory pressure was adjusted to the same tidal volume with the VCV group. PaO2/FiO2 was found to be higher with PCV at the end of the surgery. Time to extubation and ICU length of stay was shorter with PCV. Ppeak was similar in both groups. Pplateau was lower and Pmean was higher at the and of the surgery with PCV compared to VCV. The hemodynamic effects of both ventilation modes were found to be similar. PVC may be preferable to VCV in patients who undergo open heart surgery. However, it would be convenient if our findings are supported by similar studies.