View clinical trials related to Pulmonary Atelectasis.
Filter by:The aim of our study is to assess the beneficial effect of sustained inflations as a recruitment manoeuvre, using LUS examinations, on the degree of lung atelectasis that occurs in pediatric patients undergoing laparoscopic surgery. Objectives - To assess the effect of general anaesthesia and capnoperitoneum on lung atelectasis in the paediatric patients by using LUS examination - To assess the effect of sustained inflations as a recruitment manoeuvre in decreasing lung atelectasis caused by general anaesthesia and capnoperitoneum by using LUS examination Hypothesis Our main hypothesis is that the use of repeated Sustained Inflation as a recruitment manoeuvre in pediatric patients undergoing laparoscopic surgery will result in decreased atelectasis compared to conventional ventilation.
This study was a single-center, prospective, randomized controlled, two-arm study. This study will be conducted in the First Hospital of China Medical University. the investigators aimed to investigate the effects of different inspired oxygen concentrations in lung protective ventilation strategies on immediate postoperative atelectasis and intraoperative changes of oxygenation index in patients undergoing neurosurgical surgery in the supine position.
Robotic and laparoscopic surgeries are tend to cause lung atelectasis due to the insufflation of CO2 into abdomen. However, ultrasonographic measurement for this phenomenon and its clinical use is not well investigated. In this particular study, It is aimed to observe lung ultrasound score (LUS) changes in robotic and laparoscopic supine position surgeries such as prostatectomies and cystectomies. LUS is a pragmatic measurement method that calculates the degree of atelectasis and consolidation in the lungs. Both hemithoraxes are separated into 3 different segments with vertical lines (one between the parasternal line and anterior axillary line, one between the anterior and posterior axillary line, and one posterior to the posterior axillary line). These vertical segments are also divided into two with an horizontal line on the nipple. Lung ultrasonography is applied in all 12 zones for both lungs in the intercostal regions and a scoring system is used. Accordingly, pure A lines (transverse frequent lines) reflects normal lung tissue with no consolidation and scored as zero points (Also named "A"). If less than 4 B lines (vertical lines reflecting some degree of consolidation) is observed, it refers to 1 point (named "B1"). 4 or more B lines refers to 2 points (B2), and if wide and coalesced B lines or patchy pleural line is observed that refers to 3 points (C). All evaluations will be made in supine position. In this trial, LUS will be applied in three different time points: T1: 5 minutes after orotracheal intubation T2: At the end of surgery, before extubation (under deep anesthetic state) T3: 30 minutes after extubation, in postanesthesia care unit During the surgery and the postoperative care period standart monitorization and mechanical ventilation data will be gathered. Also intraoperative and postoperative blood gas analysis will be obtained to observe oxygenation changes. This study is planned as a prospective observational study and our hypothesis is that LUS scores would be lower in acute postoperative period with robotic and laparoscopic surgeries. Therefore primary outcome is the numeric change in T3 and T1. Secondarily, LUS scores will be evaluated between robotic group and laparoscopic group patients for all time points.
Introduction: At present, the best spontaneous breathing trial (SBT) during weaning from mechanical ventilation is a 30-min test with pressure support (PSV) 8 cmH2O without positive end-expiratory pressure (PEEP). There is a debate about the possible collapse of some alveolar units during such SBT and during extubation with continuous suctioning. A few experiences show extubation without suctioning as feasible and safe. Lung ultrasound is a non invasive and useful exploration tool to assess the lung aeration. Hypothesis: Techniques aimed at preserving lung volume during SBT and extubation can yield higher rates of successful extubation. The preserved lung volume of each SBT and extubation strategy can be assessed by using lung ultrasound. Primary objective: To define the rates of successful extubation in two extubation approaches aiming at different levels of lung volume preservation: standard SBT (30-min PSV 8 cmH2O without PEEP followed by extubation with continuous suctioning) versus experimental SBT (PSV8+ PEEP 5 cmH2O followed by extubation without suctioning). To define the lung aeration levels using the modified Lung Ultrasound Score (LUS) of each SBT strategy. Secondary objectives: Reintubation rate, ICU and hospital stays, and mortality in each group. To define the diaphragm and intercostal thickness and thickening fraction in different levels of lung volume preservation. Design: Prospective, multicenter, randomized study. Two opposing extubation strategies are compared in randomly assigned patients.The level of aeration is assessed using lung ultrasound.
The overall objective of this study is to describe the incidence of postoperative pulmonary complications in patients with a positive and negative AIR-test result. Second, the investigators wish to describe the incidence of a positive AIR-test and its association with the development of PPC. In addition, the investigators aim to describe whether mechanical ventilation strategy differs between patients with a positive and negative AIR-test.
We aimed to investigate the effect of posterior quadratus lumborum block on postoperative atelectasis in inguinal hernia surgery in pediatric patients.
In this study the Authors assume that peri-operative changes in DIA are predictive of postoperative atelectasis, thus providing a clinically useful tool to stratify the need for high-intensity monitoring, including admission to intensive care. Aim of this prospective observational study, in obese patients undergoing sleeve gastrectomy, is to evaluate the relationship between pre to postoperative changes in US-DIA and PaO2/FiO2.
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.
the evaluation of distribution of mechanical ventilation during robotic surgery
postoperative atelectasis observation by ultrasound after application of high flow nasal cannula oxygenation