View clinical trials related to One-Lung Ventilation.
Filter by:The general aim of the study is to observe whether the use of the Mc Grath™ videolaryngoscope instead of direct laryngoscopy can represent, as in the case of the single-lumen tube, an added value in the placement of the double-lumen tube for surgical procedures involving one-lung ventilation, making intubation on the first attempt more likely and quicker. Secondary objectives include evaluating the presence of an advantage of the Mc Grath™ videolaryngoscope over direct laryngoscopy for the correct placement of the double-lumen tube, the need for additional maneuvers during the intubation procedure, and the presence of intra- and post-procedural complications.
The aim of this study was to determine the accuracy and practicality of ultrasound in the selection of double lumen tube and whether the complications that may occur intraoperatively and postoperatively can be reduced. Patients aged 18-75 years with ASA 1-2-3 who give informed consent for left double lumen tube placement for single lung ventilation will be included in this study. Patients with a history of previous difficult intubation, head and neck surgery and radiotherapy, class 3-4 in the Colmark-Lehane classification by the thoracic anaesthetist who will perform the intubation, and patients with previously known hoarseness and chronic cough will not be included in the study. Patients who accept the study will be randomly assigned to one of the anaesthesia groups including ultrasound group (Group 1) and classical method (Group 2). Randomisation will be in a 1:1 ratio and will be done by closed envelope method.
The cause of hypoxia during one-lung ventilation is a common anaesthetic problem seen during thoracic surgery and is associated with increased fraction of shunted blood. This shunt occurs because the lung not participating in respiration stops saturating the blood with oxygen. The importance of our study is to collect some of the patient's parameters on a nomogram in the preoperative period, to predict the shunt fraction that will occur during one-lung ventilation and to make preparations and interventions accordingly.
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.