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.
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.
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.