Clinical Trials About "OXYGEN" RSS

23:10 EST 18th February 2018 | BioPortfolio

We list hundreds of Clinical Trials about "OXYGEN" on BioPortfolio. We draw our references from global clinical trials data listed on and refresh our database daily.

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Showing "OXYGEN" Clinical Trials 1–25 of 1,400+


Intelligent Oxygen Therapy During Sleep

Long-term oxygen therapy improves survival in patients with severe hypoxia. However, some patients despite this oxygen, experience episodes of low oxygen levels (intermittent hypoxia) especially during sleep which may be harmful. In order to overcome this, the investigators have designed an auto-titrating oxygen system (called intelligent oxygen therapy) which automatically adjusts oxygen flow rates to maintain oxygen levels in patients already on oxygen. This study will invest...

Effect of High Levels of Oxygen and Smoking on the Lungs in Human Volunteers

Patients with lung disease experiencing difficulty breathing can be treated with oxygen therapy. This involves the delivery of "extra" oxygen by a face-mask or through small tubes placed in the nose called nasal prongs. This extra oxygen can have concentrations as high as 100% pure oxygen. The concentration of oxygen in normal air is only 21%. The high concentration of oxygen can help to provide enough oxygen for all of the organs in the body. Unfortunately, breathing 100%...

Evaluation of Oxygen Delivery Through Nasal Cannula in Volunteers

This study will evaluate patient comfort and oxygen delivery efficiency when providing supplemental oxygen through a nasal cannula to volunteers using an instrumented oxygen delivery system. The goals of the study are to evaluate different oxygen flow rates and oxygen delivery modes. In addition, the investigators will investigate if the system can detect apnea (cessation of breathing) and removal of the nasal cannula. The investigators will also investigate how well high flow ...

Effects of Supplemental Oxygen Delivered by a Portable Oxygen Concentrator Compared to a Liquid Oxygen Device in COPD

The aim of this study is to investigate the effects of supplemental oxygen on blood oxygenation at rest in Patients with severe to very severe COPD comparing the portable oxygen concentrator (Activox™ 4L) to a liquid continuous oxygen device (Companion®).

Heated Humidified Oxygen Compared to Dry Oxygen Therapy in Children With Bronchiolitis

The purpose of this study is to compare heat and humidified oxygen with cold and dry oxygen in children with bronchiolitis. The hypotheses are that heating and humidifying inspired low flow supplemental oxygen will optimize mucociliary function thereby, 1) improve oxygenation, 2) decrease work of breathing, and 3) decrease length of hospital stay.

Oxygen Portable Concentrator During Exercises in Patients With COPD

The purpose of this study is to compare differences in oxygen delivery between portable oxygen concentrators (POCs) and liquid oxygen (LOs) portable units, pose a question if POCs are equally effective as LOs in reducing exercise-induced hypoxaemia. DESIGN: Randomized, single-blind clinical trial.

Pre-flight Titration of Supplemental Oxygen

The purpose of this study is to evaluate if supplemental oxygen during air travel can be reliably titrated using a Hypoxia-altitude simulation test (HAST). Also, the effect of oxygen supplementation given with the various oxygen equipment allowed for air travel is studied.

On-Demand Oxygen Delivery System Study

The main goal of this study is to determine if supplemental oxygen given only when the patient is inspiring (demand delivery) is more effective than constant-flow oxygen given during all phases of the breath regardless if the patient is breathing it in. A previous study in volunteers (NCT02886312) showed that the oxygen saturation in the blood and the concentration of oxygen breathed out from the lungs (end-tidal oxygen) was higher when given in demand (inhalation only) mode. A...

Therapeutic Oxygen for Gastrointestinal Atony (TOGA)

This study is a non invasive study to see if 100% oxygen therapy will help to resolve an intestinal obstruction.

Oxygen Concentration and Recovery After Carotid Endarterectomy

This study evaluates effects of high inspiratory oxygen on cerebral tissue oxygenation and patient recovery after carotid endarterectomy. Two group of patient undergoing to carotid with total intravenous anaesthesia will receive either 35% inspired oxygen or 100% oxygen.

Effect of Supplemental Oxygen on Perioperative BNP Concentration in Cardiac Risk Patients

The effect of supplemental oxygen on surgical site infections was already investigated in several studies before. Although, oxygen is one of the most used medical therapy in hospitalized patients, the influence on the cardiovascular system is still unknown. Available data indicate beneficial effects of supplemental oxygen on cardiovascular function. Because, no evidence exists concerning the perioperative period, it is our objective to investigate supplemental oxygen in cardiac...

Nocturnal Oxygen Therapy

To compare the efficacy of long-term use of nocturnal oxygen therapy (12 hours) with that of continuous, low-flow oxygen therapy (24 hours) in patients with chronic hypoxic lung disease.

Use of Oxygen in Heart Failure With Preserved Ejection Fraction

Oxygen is routinely given to patients with common conditions such as COPD and heart failure. There is no evidence behind giving oxygen to patients specifically in heart failure due to a stiff heart. This study aims to explore the effect oxygen has on the ability of patients with chronic heart failure and the ability to exercise. Other common variables will be assessed such as heart rate and blood pressure to observe the response to varying concentrations of oxygen. The ...

Hyperbaric Oxygen, Neutrophil-oxidative Burst, and Cytokines

In this small pilot study, participants (patients and healthy volunteers) will have blood drawn before and after the study intervention (hyperbaric chamber session or normal pressure oxygen breathing. This blood will be analyzed for neutrophil oxidative burst and cytokine analysis.

Pulse Oxygen Saturation (SpO2) Directed Oxygen Therapy

Investigators hypothesized that a relative low SpO2 directed oxygen therapy would reduced the mortality in patients staying longer than 72 hours in ICUs.

Canadian Oxygen Trial (COT)

Study Question: In infants who are born at gestational ages of 23 0/7 to 27 6/7 weeks, does lowering the concentration of supplemental oxygen to target an arterial oxygen saturation by pulse oximetry (SpO2)of 85-89% compared with 91-95%, from the day of birth until the baby's first discharge home, increase the probability of survival without severe neurosensory disability to a corrected age of 18 months?

Safe Time for Apnea After Preoxygenation

The use of 100% oxygen during the induction of general anesthesia is always preferable in order to have enough time to secure the airway by endotracheal intubation, because preoxygenation with a low oxygen concentration may reduce the safe time for apnea. However, using a low oxygen concentration during preoxygenation might prevent the formation of atelectasis. There is still no clear conclusion about the best oxygen concentration for preoxygenation. Our study is designed to ev...

Oxygen Extraction and Delivery in Elderly During Major Surgery

This clinical observational study investigates perioperative oxygen consumption and delivery in elderly patients undergoing major surgery. The primary objectives are to characterise the perioperative oxygen delivery, consumption and potential markers of oxygen debt. Secondary objective is to estimate the correlation between oxygen delivery/consumption and postoperative outcomes to guide the design of a future trial.

Hyperbaric Oxygen Therapy for Acute Domestic Carbon Monoxide (CO) Poisoning

Carbon monoxide poisoning still places a burden on the healthcare system worldwide. While oxygen therapy is the cornerstone treatment, the role and practical modalities of hyperbaric oxygen therapy (HBO) remain controversial. This study aimed at comparing one session of HBO at 2 absolute atmosphere followed by 4 hours of normobaric oxygen therapy to 6 hours of normobaric oxygen therapy in adult victims of acute domestic carbon monoxide poisoning and without coma.

Oxygen for Intrauterine Resuscitation of Category II Fetal Heart Tracings

Maternal oxygen administration for concerning fetal heart rate tracing (FHT) patterns is common practice on Labor and Delivery units in the United States. Despite the broad use of oxygen, it is unclear if this practice is beneficial for the fetus. The purpose of this study is to compare oxygen to room air in patients with Category II fetal heart tracings with regard to neonatal acid-base status, subsequent tracings, and production of reactive oxygen species

High-Flow Oxygen for Dyspnea in Hospitalized Cancer Patients

The goal of this clinical research study is to compare high-flow oxygen, low-flow oxygen, high-flow air, and low-flow air in helping to decrease shortness of breath in cancer patients. Researchers also want to learn if these therapies can help to improve lung function and quality of life.

Comparison of Pharyngeal Oxygen Delivery by Different Oxygen Masks

The intent of this study is to determine the difference in pharyngeal oxygen concentration in patients who have a natural airway (not intubated) using commonly available oxygen delivery systems. The investigators will test the hypothesis that oxygen concentration during the period of inspiration (FiO2) in the pharynx is dependent on oxygen delivery system design, even at high flow (15 liters/minute) oxygen delivery. Specific measurements include oxygen concentration at ...

The Cost in Oxygen of Surgical Trauma

The investigators will examine the relationship between post-operative oxygen consumption (using non-invasive measurement technology ) and complications in patients having contemporary major abdominal surgery. The investigators hypothesis is that major surgery may trigger a physiological stress response that results in an increase in post-operative metabolic demand and oxygen consumption (V̇O2) which must be met by an increased oxygen delivery (DO2). 1. To determine ...

Ventilation With High Oxygen Content and Postoperative Pneumocephalus

The aim of this study is to compare the incidence and volume of postoperative pneumocephalus in patients receiving ventilation with 100% oxygen during the last stage of surgery versus a conventional 1:1 oxygen/air gas mixture.

rEduction of oXygen After Cardiac arresT: a Pilot Study

This Phase 2 study aims to determine the feasibility of paramedic titration of oxygen delivery in adult patients who have been resuscitated from OHCA.

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