View clinical trials related to Pulmonary Atelectasis.
Filter by:Living donor nephrectomy surgeries can be performed in lateral position with laparoscopic technique which necessitates pneumoperitoneum. Considering the position and the pneumoperitoneum, lungs can be affected macroscopically. In this study, it is aimed to observe whether lungs are affected by the aforementioned entities. The hypothesis is based on possible deterioration of the lungs due to the physical features of laparoscopic nephrectomy. Lung Ultrasound Score (LUS) will be used to evaluate the actual condition of lungs. Accordingly, one hemithorax is consisted of 6 different zones, and depending on the existence of vertical B lines (that refers to atelectasis and consolidation) each zone is scored 0 to 3. Higher scores reflect worse lung conditions that is associated with the severity of atelectasis. The LUS will be performed at three time points that are 5 minutes after intubation (T1), at the end of surgery and before extubation (T2), and at 30th minute in the postanesthesia care unit (T3). Primary outcome will be the difference between T1 and T3, secondary outcomes will include perioperative blood gas analyses, intraoperative mechanic ventilator parameters, intraoperative total amount of fluid given, postoperative pulmonary complications.
In anesthetized children, the incidence of lung collapse with episodes of hypoxemia is high. Diaphragmatic dysfunction induced by general anesthesia is one of the most important factors in the genesis of regional losses of lung aeration. The mass of the abdominal organs pushes the diaphragm cranially compressing the lungs in the most dependent areas. Such regional lung collapse may range from a slight loss of aeration to complete atelectasis.
During induction of general anaesthesia physiological breathing stops and needs to be artificially established with facemask ventilation, and finally tracheal intubation or placement of a supraglottic airway. During the airway management, when lungs are not or only poorly ventilated, there is a risk for atelectasis. These atelectasis can contribute to respiratory adverse events (e.g. pulmonary infection or respiratory insufficiency) during or after general anaesthesia. High-flow nasal oxygen (HFNO) is the administration of heated, humidified and blended air/oxygen mixture via a nasal cannula at rates ≥ 2 L/kg/min. HFNO used during airway management (i.e. intubation) can extend the tolerance for apnea, the time from end of physiological breathing until artificial ventilation is established. The main objective of this study is thus to investigate the variations of poorly ventilated lung units (i.e., silent spaces) as a surrogate for functional residual capacity measured by electrical impedance tomography to dynamically assess atelectasis formation and regression under apnoeic oxygenation with different flow rates.
Investigators conduced in the Neurological Rehabilitation Unit of the IRCCS "S.Maria Nascente - Fondazione Don Gnocchi", (Milan) a retrospective study on 19 patients hospitalized between September 2018 and February 2021, with the aim of comparing the efficacy of the two devices, MetaNeb® and Intrapulmonary Percussion Ventilation (IPV®). The efficacy was evaluated considering the change of various measures after two weeks of treatment. The main outcome considered is the atelectasis score, assigned by two radiologists who blindly and retrospectively evaluated it on high-resolution computed tomography (HRTC) images
The purpose of this study is to describe the design, methodology and evaluation of the preclinical test of Carebot AI CXR software, and to provide evidence that the investigated medical device meets user requirements in accordance with its intended use. Carebot AI CXR is defined as a recommendation system (classification "prediction") based on computer-aided detection. The software can be used in a preclinical deployment at a selected site before interpretation (prioritization, display of all results and heatmaps) or after interpretation (verification of findings) of CXR images, and in accordance with the manufacturer's recommendations. Given this, a retrospective study is performed to test the clinical effectiveness on existing CXRs.
In pregnancy, cephalal shift of the diaphragm caused by the enlarged uterus reduces the functional residual capacity and may increase the closure volume and predispose the pregnant woman to airway closure, leading to atelectasis. The development of atelectasis due to dermatomes retained in spinal anesthesia and intraoperative supine position may increase further. Oxygen therapy to be applied may also lead to absorption atelectasis by causing hyperoxia. The aim of our study is to evaluate the effect of oxygen support on the lungs in cesarean section operations under spinal anesthesia by lung ultrasound score and oxygen reserve index.
Laparoscopic surgeries may cause atelectasis on the lungs which may stay clinically occult after the surgery. Lung Ultrasound Scoring (LUS) can provide an objective measuring system to understand the condition of the lungs in the perioperative period. In this randomized controlled study, it is aimed to investigate the effects of one single recruitment maneuver (RM) just before emergence and extubation (at the end of surgery) on LUS scores and postoperative recovery room oxygenation in laparoscopic nephrectomy surgeries. Accordingly, the intervention group will be applied single RM before extubation, while the control group will be awaken without RM. There will be LUS evaluation at 4 different time for intervention group (Group RM) points that are: T1: 5 min after the intubation T2: At the end of surgery (After skin closure, before recruitment maneuver) T3(RM): After recruitment maneuver, before extubation T4: 30 minutes after extubation in the recovery room LUS evaluation will be made at 3 different time points in control group (Group NoRM): T1: 5 min after the intubation T3(NoRM): Before extubation (no recruitment maneuvers will be made) T4: 30 minutes after extubation in the recovery room. The primary outcome is the comparison of the T3 LUS scores. Assuming a 40% difference in the T3 LUS score, total number of 30 patients were calculated to be included in the study with an alpha value of 0.05 and 95% power. A possible drop-out of 5 patients per group, 20 patients were planned to be enrolled in each group. Secondary outcomes will include; difference in T4 LUS scores, the effect of RM on postoperative recovery room oxygenation, and the effect of deltaLUS (T3-T2) on postoperative recovery room oxygenation.
Statement of the problem: • Does the thoracic block technique has effect on atelectasis in Children on Mechanical Ventilation? Null hypothesis: • there is effect of thoracic block technique on atelectasis in children on Mechanical ventilation.
This study aims at comparing a perioperative pulmonary atelectasis score, measured by pulmonary ultrasound, in patients operated undergoing orthopedic surgery under general anesthesia, spinal anesthesia or peripheral nerve block. The association between the atelectasis score and previously identified risk factors will be studied.
Evaluation of atelectasis that may be caused by different flow rate anesthesia applications during the operation with lung ultrasound score.