View clinical trials related to Hyperoxia.
Filter by:In our study, we aimed to observe the usability of non-invasive monitoring methods in oxygenation management, using non-invasive monitoring techniques, preventing hyperoxia and avoiding oxidative damage-related complications in patients undergoing on-pump cardiac surgery.
To assess oxygenation with the oxygen reserve index in desflurane anesthesia administration using low and high fresh gas flows for tympanomastoidectomy surgeries.
The current endovascular treatment has increased the recanalization rate to more than 90%. Even so, the prognosis rate of stroke is still less than 50%. Our previous research confirmed that the neuroprotective effect of Normobaric Hyperoxia (NBO) from multiple perspectives. However, the clinical study on NBO was not satisfactory, which might be due to the absence of vascular recanalization therapy. Therefore, The investigators conducted this RCT study to further explore the Efficacy and safety of NBO combined with endovascular treatment in patients with acute ischemic stroke.
The purpose of this study is to investigate the impact of supraphysiologic oxygen (hyperoxia) on myocardial function in anaesthetized patients with coronary artery disease.
We evaluated the prognostic role of the intraoperative arterial oxygen partial pressures (PaO2) on postoperative patient and graft survival in living donor kidney transplantations.
Oxygen is the most widely prescribed therapy in the ICU (intensive care unit) and can save lives in critical patients. While the deleterious effects of hypoxia are apparent and must be actively avoided, hyperoxia also has adverse effects. These include systemic, coronary and cerebral vasoconstriction; decreased coronary blood flow; pulmonary atelectasis and increased free radicals. Despite these deleterious effects, hyperoxia is common and frequent in the ICU (from 22% to 74%). A recent meta-analysis published in "The Lancet" with more than 16,000 patients demonstrated an association between liberal oxygen therapy and mortality in critical patients. Other meta-analyses confirm its results with high quality data according to the authors. A randomized controlled trial published in "The New England Journal of Medicine" comparing liberal versus conservative oxygen therapy showed no difference in mechanical ventilation days and mortality (The ICU-ROX, 2019). However, the difference in PaO2 between the two groups was very small and the PaO2 in the liberal group did not exceed 100 mmHg. In any case, conservative oxygen therapy is safe for critical patients. The recommendations therefore recommend an oxygen saturation between 94-97% in critical patients and 88-92% in patients with COPD (Chronic Obstructive Pulmonary Disease) . However, to our knowledge, no study has described the incidence of hyperoxia in non-intubated patients in the intensive care unit.
The main objective is to demonstrate that hyperoxia in cardiac surgery increase the occurrence of post-operative pulmonary complications
The purpose of this study is to evaluate the effectiveness of Vaporous Hyperoxia Therapy (VHT), previously named Misty (WTS-1000) for the treatment of chronic foot ulcers.
Excessive oxygen administration is known to cause oxidative stress, and absorption atelectasis. Hyperoxia is very common in general anesthesia settings. Even though there are concerns in using excessive oxygen during general anesthesia, the optimal fraction of inspired oxygen (FiO2) for general anesthesia is not well studied. The oxygen reserve index (ORI) is a parameter which can evaluate partial pressure of oxygen (PaO2) rating from 0 to 1. There are growing evidences in ORI that it might be helpful to reduce hyperoxia in critically ill patients in the intensive care unit, as well as in general anesthesia. The aim of this study is to evaluate efficacy of oxygen reserve index to reduce hyperoxemia in major abdominal surgery.
Most premature babies require oxygen therapy. There is uncertainty about what oxygen levels are the best. The oxygen levels in the blood are measured using a monitor called a saturation monitor and the oxygen the baby breathes is adjusted to keep the level in a target range. Although there is evidence that lower oxygen levels maybe harmful, it is not known how high they need to be for maximum benefit. Very high levels are also harmful. Saturation monitors are not very good for checking for high oxygen levels. For this a different kind of monitor, called a transcutaneous monitor, is better. Keeping oxygen levels stable is usually done by nurses adjusting the oxygen levels by hand (manual control). There is also equipment available that can do this automatically (servo control). It is not known which is best. Studies of automated control have shown that infants spend more time within their intended target oxygen saturation range. These have not included measurements of transcutaneous oxygen. The investigators aim to show the transcutaneous oxygen levels as well as the oxygen saturation levels when babies have their oxygen adjusted manually or automatically.