View clinical trials related to Oxygen Therapy.
Filter by:In the literature there are no indication on which is the best setting of the humidification temperature at the start of treatment with high flow nasal cannula (HFNC) in intensive care unit (ICU). The primary objective of this study is to understand whether there is a difference between the approaches to the humidification temperature for initiating HFNC treatment based on the perceived comfort of ICU patients. We hypothesize that a gradual increase in temperature (31-34-37°C or 34-37°C) could lead to a different comfort as compared to 37°C as initial starting setting. The secondary aim is to assess the patient's dryness and humidity level of the nose.
The current methods of oxygen supply administer medicinal oxygen to the patient at a constant flow. Oxygen is being delivered when the patient needs it (at inhalation) and when the patient does not need it (at exhalation and at rest) if the volume of oxygen needs to be adjusted, the clinician typically increases the rate of flow in an effort to increase the oxygen concentration in the air inhaled by the patient. This traditional way of administering oxygen is clinically effective but it also wastes significant amounts of oxygen that the patient never uses. The BUFEO system addresses this problem by altering the supply of oxygen to an on-demand delivery model, the patient receives oxygen only when needed (during inhalation) and no oxygen is wasted at rest or during exhalation. The aim of this study is to evaluate, the efficacy, tolerability, and non-inferiority in SpO2 of the BUFEO device in saving oxygen and reaching a target SpO2 rate, in comparison to the standard of care by measuring the volume of oxygen used and the SpO2 reached when administering medical oxygen with the traditional supply method and through BUFEO system to hospitalized, oxygen-dependent subjects with pulmonary pathology.
To study whether oxygen therapy titrated to maintain oxygenation (SpO2) > 90% at 2500m would resolve altitude-related adverse health effects, symptoms and impaired exercise during 30h exposure to high altitude.
In patients with acute hypoxemic respiratory failure (AHRF), High Flow Nasal Therapy (HFNT) improves oxygenation, tolerance, and decrease work of breathing as compared to standard oxygen therapy by facemask. Current guidelines recommend adjusting oxygen flow rates to keep the oxygen saturation measured by pulse oximetry (SpO2) in the target range and avoid hypoxemia and hyperoxemia. The hypothesis of the study is that closed loop oxygen control increases the time spent within clinically targeted SpO2 ranges and decreases the time spent outside clinical target SpO2 ranges as compared to manual oxygen control in ICU patients treated with HFNT.
To assess the benefits and drawbacks of high versus low oxygen therapy on mortality and myocardial function in mechanically ventilated patients
The SARS-Cov2 viral pandemic is responsible for a new infectious disease called COVID-19 (CoronaVIrus Disease), is a major health problem. Respiratory complications occur in 15 to 40%, the most serious is acute respiratory distress syndrome (ARDS). The management of COVID-19 is essentially symptomatic with respiratory oxygen supplementation in mild forms to invasive mechanical ventilation in the most severe forms. Prone position (PP) reduced mortality in patients with ARDS in intensive care. Ding et al showed that PP and high flow oxygenation reduced the intubation in patients with moderate to severe ARDS. The investigators hypothesize that the use of PP in spontaneously ventilation patients under oxygen standard could decrease incidence of intubation or non-invasive ventilation or death compared to conventional positioning management in medical departments.
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.
Acute left heart failure (ALHF) is a sudden attack or deterioration of abnormal left heart function, which may impair myocardial contractility and increase cardiac loading, further result in decreased cardiac output, abrupt elevation of pulmonary and systemic circulation pressure, consequently trigger in acute pulmonary congestion, acute pulmonary edema and cardiac shock . Hypoxia and severe dyspnea may pose fatal threats for the patients suffered from ALHF should be alleviated as soon as possible, and thus oxygen therapy and ventilation support are regarded as important therapeutic measures for these patients. According to 2017 Chinese College of Emergency Physicians(CCEP) acute heart failure clinical guideline, invasive ventilation should be recommended to those patients whose symptoms still get worsening despite timely treatments. Intubation may increase the risks of infection and multiple organ failure, so timely extubation contributes to reduce the duration of mechanical ventilation and the rate of complications. But if extubation failure occurs, the patient often requires re-intubation that may induce the outset of complications, extend the length of stay and increase mortality. Heart failure proves to be high risk factor for extubation failure on the basis of previous studies. It is recommended to apply sequential non-invasive ventilation (NIV) if the patient receiving invasive ventilation for more than 24 hours and having high risk for extubation failure on the basis of 2017 American Thoracic Society(ATS) clinical guideline. It is worthy to note that NIV has many shortcomings, for example, it may induce dry oropharyngeal cavity, skin injury caused by mask oppression, gaseous distention, vomiting, respiratory aspiration, air leak, drying sputum, difficulty in coughing up phlegm and claustrophobia. As an emerging technology, high flow nasal oxygen (HFNO) has many advantages in airway humidification, tolerance and compliance which also can effectively improve pulmonary oxygenation function of patients with respiratory failure. Which therapeutic measure should be recommended for the patients with ALHF after extubation, NIV or HFNO? It is still unclear according to the latest management guidelines. So one perspective study will be launch to compare the difference between HFNO-group patients with NIV-group patients in re-intubation rate within 48 hours, oxygenation index, length of ICU stay, total hospital stay, mortality and compliance for evidence-based medicine.
The objective of this study is to determine the multifactorial relationship between the effective fraction of inspired oxygen (Effective-FiO2) and the FiO2 in the gas delivered by the nasal cannula (NC-FiO2), NC flow rate, spontaneous minute ventilation and other patient characteristics in premature infants who receive supplemental oxygen via nasal cannula (NC).
High-flow nasal cannula (HFNC) that uses heated and humidified oxygen was recently introduced for bedside care. It has been shown to be associated with reduced risks of tracheal intubation rates and mortality in adult hypoxic patients. The mechanisms of the effects of HFNC are thought to be related to the favorable effects of the heated and humidified gas, the high-flow rate used to minimize the entrainment of room air, and an increase in the ventilation efficiency, including the elimination of nasopharyngeal dead space, positive end-expiratory pressure (PEEP) effects, and improvements in paradoxical abdominal movement. Regarding the effects on lung volume, global ventilation in the lungs increases during HFNC, which is thought to attribute to PEEP effects. However, how regional ventilation is affected during HFNC in comparison with conventional NC remains unknown. Because PEEP in mechanically ventilated patients improves the regional homogeneity of ventilation, investigators postulated that HFNC via PEEP effects would result in more homogeneous regional distributions in the ventilation changes. Investigators therefore assessed global and regional ventilation in patients with hypoxia receiving care via HFNC using electric impedance tomography and compared these results with conventional nasal cannula.