View clinical trials related to One-Lung Ventilation.
Filter by:In this study, the primary aim is to compare the impact of using a double-lumen tube and bronchial blocker for single-lung ventilation in patients undergoing minimal invasive cardiac surgeries on postoperative pulmonary functions. Secondary objectives include the comparison of application duration, success in lung collapse, and the number of repositioning attempts for both techniques.
With the rapid advancement of thoracoscopic surgery in recent years, surgeons have set higher standards for the quality of non-ventilated lung collapse. In a prior investigation, we examined a unidirectional valve device that let air exit the non-ventilated side of the lung but not enter during ventilation and showed the use of this device during one-lung ventilation (OLV) for patients undergoing thoracoscopic surgery could speed up lung collapse, lower endogenous positive end-expiratory pressure, and have no discernible effects on oxygenation. In light of this, we conducted this study to further demonstrate, by comparison with the commonly used clinical technique of occluding the non-ventilated endobronchial lumen during one-lung ventilation, that this unidirectional valve device can quicken and enhance the quality of lung collapse without raising the risk of adverse events when used in thoracoscopic surgery.
BACKGROUND: The aim of this study is to evaluate the confirmation of double lumen tube placement with thoracic Ultrasound (USG) in thorax surgery operations with one lung ventilation. METHODS: In this prospective and observational study, 130 patients aged between 18-65 years in ASA (American Society of Anesthesiology) I-III risk class who will undergo thoracic surgery with the application of single-lung ventilation were included in the study. A double-lumen endobronchial tube was placed in the patients blindly. One-lung ventilation (OLV) was confirmed by thoracic USG by the anesthesiologist. The patient's demographic data, rapid clinical evaluation and USG data results, and intraoperative surgeon satisfaction were recorded.
The goal of this randomized clinical trial is to compare a liberal versus restrictive oxygen supply (fraction of inspired oxygen, FiO2) strategy in patients scheduled for thoracic surgery requiring one-lung ventilation during lung isolation. The primary and secondary outcome parameters are: - oxygenation of the blood after 30 minutes of one-lung ventilation, assessed by PaO2/FiO2 ratio - time to lung collapse after start of one-lung ventilation Participants in the control goup will receive an oxygen content of 100% before lung isolation, which will be subsequently decreased to achieve normoxia or mild hyperoxia (PaO2 of 75-120 mmHg). The intervention group will receive the previous, during two-lung ventilation set, oxygen content and after lung isolation oxygen supply will be increased to secure adequate oxygenation of the blood (PaO2 75-120 mmHg) during one-lung ventilation. The investigators hypothesize, that a higher fraction of inspired oxygen may impede hypoxic pulmonary vasoconstriction of the collapsed lung and thus decrease overall oxygenation performance during one-lung ventilation. Secondary endpoint will be the time to lung collapse, as a lower fraction of inspired oxygen and thus a higher nitrogen content may impede lung collapse.
One-lung ventilation (OLV) is essential part of anesthesia during thoracic procedures. However, OLV induces a drastic increase of intrapulmonary shunt due to maintained pulmonary perfusion through the nonventilated lung, which may result in severe hypoxemia. Although the protective mechanisms of hypoxic pulmonary vasoconstriction favorably modulate pulmonary perfusion to the ventilated lung, the effect is attenuated in patients with history of chronic obstructive pulmonary disease (COPD), which alters compliance of the pulmonary artery. Salbutamol is a selective short-acting beta2-agonist and when inhaled during OLV, it acts selectively on the pulmonary vasculature reducing pulmonary vascular resistance of well-ventilated lung. We hypothesized that inhaled salbutamol would alleviate ventilation-perfusion mismatch during OLV of COPD patients, and aimed to assess the effects of salbutamol on oxygenation in these patients.
The goal of this clinical trial is to compare the effect of sevoflurane and remimazolam on arterial oxygenation during one lung ventilation in patients undergoing video-assisted thoracoscopic surgery.
One-lung ventilation and prone positioning during thoracoscopic esophagectomy is associated with pulmonary complications so lung protection is strongly recommended. Individualization the optimal PEEP level according to the respira¬tory condition of patients has gradually attracted the attention of clinicians. The aim of this study is to compare and evaluate the differences between three different PEEP values in patients who will undergo thoracoscopic esophagectomy receiving either constant PEEP or driving pressure guided individualized PEEP or oxygenation guided individualized PEEP.
The investigators' goal is to perform an observational cohort study investigating the use of oxygen reserve index (ORi) in patients undergoing elective thoracic surgery and one-lung ventilation (OLV). For this purpose, ORi values are recorded and compared to the other collected hemodynamical and oximeter parameters. The primary hemodynamic parameters include heart rate (HR) and blood pressure (BP), while; oximeter device-related parameters include peripheral oxygen saturation, perfusion index (PI), and pleth variability index (PVI). The investigators' secondary goal is to investigate relationships between these hemodynamical and oximeter parameters using statistical analysis methods.
One-lung ventilation (OLV) may cause negative changes in the oxygenation of cerebral tissue which results in postoperative cognitive dysfunction. The aim of this prospective study was to compare the potential effects of TIVA and inhalation general anesthesia techniques on cerebral tissue oxygenation and postoperative cognitive functions in patients receiving one-lung ventilation in thoracic surgery
Intraoperative protective ventilation with low tidal volumes (TV), positive end-expiratory pressure (PEEP) and possibly lung recruitment maneuvers (RMs) reduces postoperative pulmonary complications. In thoracic surgery, in one-lung ventilation (OLV), the evidence is lacking. However, in this context protective ventilation with PEEP titration is related to better intraoperative oxygenation and respiratory mechanics. It is not clear whether this strategy is associated also with better postoperative oxygenation and less postoperative pulmonary complications.