Active clinical trials for "Pulmonary Atelectasis"

Atelectasis formation using HFJV during stereotactic solid organ ablations. Primary endpoint will be to study the formation of atelectasis during HFJV. Secondary endpoint will be to study liver displacement over time. Reference groups will be found in previous published articles as referred to above. Materials and methods: A radiological protocol has been made for the CT-scanner to take 10 cm volume Scans of the lower part of the lung. The scans will have its' lower border tangential to the top of the diaphragm. The first scan will be performed in the same session as the routine scan of the liver is performed after the patient is anesthetized. These Scans will then be repeated every 15 minute during the first 45 minutes. Arterial bloodgas analysis, transcutaneous CO2, blood pressure, saturation as well as parameters from the jet ventilator and the standard ventilator will be recorded.

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.

postoperative pain following Modified radical mastectomy is severe specially after dissection of tissues .paravertebral plane block provides an excellent postoperative analgesia for women's,but it carry the risk of pneumothorax which it reported in some cases.Erector spinae plane block is a recent block has been mentioned in many case reports as a safe,quick and can be used in outpatient setting. we use a comparative study to compare the postoperative analgesia between both blocks and the affection of postoperative pain following both blocks if any on pulmonary functions.

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.

Investigators hypothesized that maintaining low fraction of inspired oxygen would be beneficial to prevent anesthesia-induced atelectasis in mechanically ventilated children undergoing general anesthesia.

In general anesthesia, gas exchange was altered by shunt and uneven ventilation perfusion ratios. Lung atelectasis was a cause of impaired oxygenation. High-flow nasal cannula oxygen therapy delivers adequately heated and humidified medical gas at up to 60 L/min of flow. It has physiological effects: reduction of anatomical dead space, positive end expiratory pressure (PEEP) effect, constant fraction of inspired oxygen, and good humidification. The hypothesis of this study is using high-flow nasal oxygen in intravenous general anesthesia could improve lung function and prevent lung atelectasis.

The purpose of this study is to compare the feasibility, safety, efficacy and ease of performance of a video-assisted PCT (via an endotracheal tube embedded with a mini video-camera) with the standard ("blind") PCT technique.

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.

Video-assisted thoracic surgery (VATS) is usually performed with general anesthesia and single lung ventilation. However, performing thoracic surgery under awake regional anesthesia has several potential advantages including avoidance of airway trauma and ventilator dependence associated with endotracheal intubation, besides promoting enhanced recovery after surgery and shorter mean hospital stay.

The primary aim of this project is to get further knowledge of the physiology of flight atelectasis and its prevention. We seek to: 1) assess whether low levels of positive pressure breathing can prevent atelectasis formation in humans during exposure to hyperoxia and +Gz-accelerations. 2) get further knowledge on the effects of hypobaria on regional ventilation and perfusion. A secondary aim is to evaluate the effect of anti G-trouser inflation on ventilation and regional perfusion.