View clinical trials related to Lung Collapse.
Filter by:HYPOTHESIS: During anesthetic pre-oxygenation with high FiO2, pulmonary atelectasis occur, especially in patients < 6 years old, where FRC and pulmonary closing volume may overlap. New borns and children <1 year old are especially vulnerable. OBJECTIVES: 1. Validate "air test" as a individualized and non-invasive diagnostic method of clinically significant atelectasis in pediatrics. 2. Determine what other factors contribute to atelectasis development in pediatrics METHODS: 30 pediatric patients will be studied with ages ranged between 45 postconceptional weeks and16 years old. Baseline SpO2 and lung ultrasound will be performed for each patient upon arrival at the operating theatre before preoxygenation with FiO2 of 1.0 SpO2 will be measured 15 min after intubation during a 5 min long "air test" trial (FiO2 0.25). lung collapse will be verified by lung ultrasound at the end of the 15 min trial. Lung collapse will be eventually granted upon lung US verification by a blind researcher.
Prevention of lung inhomogeneity is an essential part of preventive strategy in neurocritical care, reducing the risks of secondary brain damage from hypoxemia, hypo/hypercapnia or pneumonia.
During abdominal surgery, the intra abdominal pressure may increase determining lung bibasal atelectasis. The investigators hypothesized that the application of Positive End Expiratory Pressure (PEEP) promptly after extubation through Continuous Positive Airway Pressure (CPAP) would improved gas exchange, especially in those patients with abdominal pressure values close to those applied by CPAP. The investigators have therefore designed this subset study enrolling patients randomized to receive CPAP in the "Prevention of Respiratory Insufficiency after Surgical Management (PRISM)" Trial in order to ascertain the abdominal pressure in post-surgical patients (abdominal open surgery procedures) enrolled in PRISM trial. In addition they would evaluate the effects of CPAP on abdominal pressure and consequently on arterial blood gas, and whether there is a correlation between PEEP values, abdominal pressure values and arterial blood gas. One hundred patients included in CPAP group of the PRISM trial will be enrolled in this subset study. The investigators will perform measurements of the abdominal pressure an urinary catheter connected with an intra-abdominal pressure device (Uno-Meter ® - Uno-medical) in all patients undergoing on open-surgical procedures after mechanical ventilation withdrawal and extubation, 30 minutes and 4 hours after the application of CPAP.
The study contains the result from a comparison of diagnostic outcomes about lung collapse by using lung ultrasonography as a new diagnostic test compares to fiberoptic bronchoscopy as the standard test.
This study aims to compared the effects of high flow nasal during the induction and during the weaning of anesthesia on intraoperative and postoperative oxygenation and postoperative atelectasis in obese patients undergoing bariatric surgery versus the standard of care, which consists in supplemental oxygen with face mask (Venturi mask).
This is an observational study to compare the effect of spontaneous ventilation versus controlled ventilation on lung atelectasis using lung score measured by lung ultrasound. the study will be conducted in children hospital of Cairo University Hospitals and study population will be : children aged from one to eight years of age. primary outcome will be the lung score measured by lung ultrasound.
This study aims to compared the effects in driving pressure of an open-lung strategy with a positive end-expiratory pressure (PEEP) titrated to best driving pressure (DP) after a RM versus the recommended protective PEEP of 5 cmH2O without a recruitment manuever in non-obese patients undergoing cardiac surgery.
Lung isolation technique and one-lung ventilation (OLV) are the mainstays of thoracic anesthesia. Two principal lung isolation techniques are mainly use by clinicians, the double lumen tubes (DLT) and the bronchial blockers (BB). The physiology of lung collapse during OLV is not well described in the literature. Few publications characterized scant aspects of lung collapse, only with the use of DLT and sometime in experimental animals. Two phases of lung collapse have been described. The first phase is a quick and partial secondary to the intrinsic recoil of the lung. The second phase is the reabsorption of gas contained in the alveoli by the capillary bed. The investigators plan to describe the physiology of the second phase of lung deflation using of DLT or BB, in a human clinical context.
The aim of this study was to compare the effects of adding a recruitment maneuver (RM) to low tidal volume (VT) ventilation, with or without an individualized post-RM positive end-expiratory pressure (PEEP) setting in lung-healthy patients during anesthesia.