Active clinical trials for "Hypoxia"

This prospective, blinded observational clinical study was aimed to determine the effect of hyperhydration and muscle loss measured by Bioelectrical impedance vector analysis (BIVA) on mortality. The aim was to compare hydratation parameters measured by BIVA: OHY, Extracellular Water (ECW) / Total Body Wate (TBW) and quadrant, vector length, phase angle (PA) with cumulative fluid balance (CFB) recording (input-output) in their ability in predicting mortality as the abilities of the prognostic markers PA (BIVA), Acute Physiology and Chronic Health Evaluation II (APACHE II - score) and presepsin (serum Cluster of Differentiation (CD) 14-ST). The investigators also compared BIVA nutritional indicators (SMM, fat) with BMI and laboratory parameters (albumin, prealbumin and C-reactive protein (CRP) inflammation parameters) in the prediction of mortality. An important goal was to evaluate the usability of the BIVA method in critically ill patients on extracorporeal circulation, to compare the impedance data of the extracorporeal membrane oxygenation (ECMO) and non-ECMO groups.

The objective of this study is to show that the measurement of auditory and vibro-tactile evoked potentials, or the recording of the EEG signal during a motor imaging task, can be used in routine clinical situations to explore the state of consciousness of subjects in Non-responsive Awakening (or Chronic Vegetative State) or in Minimal Consciousness (or relational state) after a severe brain injury. Assumptions : Correlation between patient response rates obtained with the brain-machine interface and their clinical consciousness score (Coma Recovery Scale Revised score) Differentiation of the parameters of the evoked potentials P300 between patients in a vegetative state and those in a state of minimal consciousness

Investigate effects of PEEP on pulmonary regional ventilation and perfusion assessed by EIT

Sleeping under hypoxic conditions can impair cognition and autonomic nervous activity. A short daytime nap can modify these changes. Here we propose a randomized, cross-over study to evaluate the heart rate variability during a 90 min nap in a normobaric hypoxic chamber. In addition, we will investigate sleep architecture, vigilance, attention and memory.

This study will compare the impact of the Double-Trunk Mask (DTM) with the Non-Rebreather Mask (NRM) on the blood gases of patients with severe hypoxemia.

Comparison the effect of two different mechanical ventilation modes on tissue oxygenization.

Intubation of patients in the intensive care unit (ICU) carries a risk of potentially severe complications, including cardiac arrest. Hypoxemia is common in ICU patients requiring intubation, which must be performed rapidly to avoid aspiration, since the patient is usually not in the fasted state. Studies have assessed interventions designed to improve intubation success rates, such as routine neuromuscular blockade. Care bundles combined with training on simulators have improved the safety of intubation. Nevertheless, intubation in the ICU still carries higher morbidity and mortality rates compared to intubation in the operating room. Preoxygenation is a cornerstone of safety for intubation in the ICU. Several recent trials have investigated different devices (non-rebreather mask, non-invasive ventilation, high flow nasal cannula, bag valve mask) with conflicting results. A main reason for those results is that efficiency of the preoxygenation period cannot be evaluated in the ICU in opposite to the operating room: gas monitoring are not available in ICU and even if it was the case, high flow demand from the patient, and agitation will make it inefficient. Additionally, desaturation is frequent (from 10% up to 50%) during intubation in ICU and lead to morbidity and mortality; so anticipation of desaturation is a major concern for ICU's physician because it's impacting care (face mask ventilation, early insertion of subglottic device). The oxygen reserve index (ORI) is a new parameter for monitoring oxygen reserve non-invasively. In this context, the investigators purpose to analyze efficiency of preoxygenation and time allowed by ORI for medical interventions before hypoxemia during intubation in the ICU in a pilot observational study in our medical ICU in a university hospital.

This study evaluates the use and effects of supplementary oxygen in surgical and medical wards on patients admitted to a hospital in the capital region of Denmark. The population will be divided in to three groups according to their oxygenation status. The main outcome will be 30-day mortality, with secondary outcomes being Length of stay, 30-day admission to ICU, 30-day reoperations, 30-day readmission, and peak values within 30-days of C-reactive protein, S-Creatinine, Troponin.

The purpose of this study is to develop a novel noninvasive bedside optical coherence tomography (OCT) imaging technique in newborn infants with HIE that improves our ability to assess the range of retinal effects from HIE and to diagnose and monitor treatments of HIE.

Due to their effects on hypoxic pulmonary vasoconstriction (HPV), dihydropyridine calcium channel inhibitors (CCI) could lead to hypoxia in patients with a pulmonary shunt. To the present time only preclinical studies and case reports focused on this potential adverse drug reaction. We aimed to assess the reporting association between CCI and hypoxia using the World Health Organization pharmacovigilance database (VigiBase®).