View clinical trials related to Atelectasis.
Filter by:General anaesthesia results in developement of atelectasis in dependent areas of the lungs exposing patients to an increased risk of hypoxaemia.During pelvic robotic surgeries pneumoperitoneum and steep trendelenburg position further increases atelectasis. Lung Ultrasound imaging is a promising , noninvasive , non-radiant, portable tool to study intraoperative lung atelectasis.
In anesthesia the incidence of postoperative pulmonary complications is frequent, especially in cardiac surgery where the incidence can reach 10%. Respiratory morbidity in cardiac surgery is favored by multiple factors and is higher compared to anesthesia in "general" surgery. The prevention of these complications is a major challenge in the management of patients. Influence of driving pressure level on respiratory morbidity was first demonstrated in management of acute respiratory distress syndrome (ARDS) in resuscitation. More recently, this notion has been introduced in anesthesia, with a correlation between increase driving pressure level and increase of post-operative respiratory complications. A method should reduce these levels of driving pressure: performing lung recruitment maneuvers. This technique has been successfully tested in abdominal surgery in particular in a study published by Futier et al.. They systematized and standardized lung recruitment maneuvers and showed a decrease of postoperative pulmonary complications in abdominal surgery. Thus, the realization of lung recruitment maneuvers, already used at the discretion of the practitioner, is now recommended by several teams of experts. The investigators propose in this "before-after" trial to evaluate variation in driving pressure due to systematic use of lung recruitment maneuvers, observed in patients operated in elective or urgent surgery. The secondary objective is to evaluate their impact on postoperative pulmonary complications.
The goal of this study to evaluate whether eliminating the use of non-depolarizing neuromuscular blocking agents (NMBA) for maintenance of general anesthesia reduces postoperative pulmonary complications in higher risk patients.
postoperative atelectasis observation by ultrasound after application of high flow nasal cannula oxygenation
spontaneous breathing on occurrence of atelectsis in infants
Morbid obese patients present changes in respiratory physiology caused by weight overload. Intraoperative atelectasis is a pulmonary complication that affects not only gas exchange but also respiratory mechanics. The present study was aimed to test the role of different parameters for monitoring the treatment of atelectasis by a lung recruitment maneuver.
In this study researchers aim to evaluate effect of different ventilation modalities on the developments of atelectasis by using ultrasound.
Anesthesia causes respiratory changes and complications, which are the main causes of complications and anesthesia-related deaths. Among the complications, the rapid appearance of lung atelectasis is well known, deteriorating the hematosis during anesthesia, and inducing secondary pulmonary complications. Prevention or limitation of the atelectasis would be a way to improve the safety of patients who have a limited respiratory function. The application of a positive expiratory pressure (PEP) is an effective prevention method for atelectasis, that have been only demonstrate in patients under mechanical ventilation. The high flow nasal cannula is a non-invasive technique easy to perform and allowing a PEP. High flow nasal cannula is safe to use, and the interface is free from local skin complications. Chest X-ray (bad sensibility) or CT are usually used for the diagnosis of atelectasis, but these two exams involve irradiation for patient. MRI and pulmonary ultrasonography has now been validated in adults. MRI are relatively long, and allow to investigate the atelectasis with only a short additional acquisition time. Thus, it would be the first study on the effect of the PEP on the impact and the volume of the atelectasis during general anesthesia in spontaneous ventilation in children. By the way this is the first study on lung's anatomical effects of high flow nasal cannula. It is a monocentric, intervention, randomized, superiority study whose main purpose is to show the reduction of the atelectasis through the use of high flow nasal cannula versus a high concentration mask for pediatric anesthesia during MRI. The studied population is all the children between 6 months and 5 years with a pediatric indication of general anesthesia for MRI. The primary goal is to show a reduction of volume (cm3) of the atelectasis via the application of a PEP by high flow nasal cannula. The main assessment criteria is the ratio of atelectasis volume/total lung volume. The prevalence of the atelectasis will be evaluated by MRI lung and measured using 3D reconstruction software. The duration of the examination and the anesthesia is slighty lengthened, 3 to 5 minutes for a 40 minutes' exam. The secondary objective is to show a match between the atelectasis on MRI and ultrasound.
An Investigation to determine the single-use scope's ability to suction secretion from the lungs to resolve the collapse of the lung.
A safe and effective surgical environment is important for nonintubated thoracoscopic surgery. The investigators hypothesize that mini-dose succinylcholine can induce ultra-short period of apnea, by which the ventilatory responses to open pneumothorax were abolished and may facilitate rapid and satisfying collapse of the operated lung during nonintubated thoracoscopic surgery.