View clinical trials related to Hypercapnia.
Filter by:In this multicenter study the comparison of the mass flow distribution and redistribution versus the relative blood flow per lobe (as a surrogate for Ventilation/ Perfusion (V/Q) matching) with functional respiratory imaging (FRI) and arterial blood gas (ABG) values will be evaluated in hypercapnic Chronic Obstructive Pulmonary Disease (COPD) patients. Therefore a low dose Computed Tomography (CT) scan will be taken in a population of 30 patients with non-invasive ventilation (NIV) and in a control group of 10 patients without NIV. The CT-scan will be used for FRI.
Chronic Obstructive Pulmonary disease (COPD) patients with chronic hypercapnic respiratory failure are more likely to develop exacerbations. Non-invasive ventilation has been proposed to treat acute respiratory failure but little information is available about the benefits of home non-invasive ventilation in COPD patients with chronic hypercapnic respiratory failure surviving an acute hypercapnic respiratory failure. The purpose of this study is to determine whether home non-invasive ventilation can reduce recurrent acute hypercapnic respiratory failure in COPD patients who survived an episode of acute hypoxemic respiratory failure (AHRF) treated by Non-invasive ventilation (NIV).
Non-invasive ventilation is frequently applied in patients with acute exacerbation of COPD, but no evidence exists about the effect of long term application/home application. This study tests the hypothesis, that a daily, 6 hour application of non-invasive ventilation over one year improves survival, exercise capacity, and quality of life in patients with advanced stages of COPD.
Some patients receiving mechanical ventilation have difficulty weaning off the ventilator because of physiological factors such as pre-existing lung disease, respiratory distress syndrome, and trauma among others. Allowing patients to become hypercarbic (increased blood bicarbonate level) may make it easier for these patients to be taken off the ventilator and resume breathing on their own.
Noninvasive ventilation (NIV) is now a major therapeutic option to manage patients with acute hypercapnic respiratory failure (AHRF). Otherwise, patient-ventilator interfaces are determinant to get an optimal NIV efficacy in parallel with ventilatory comfort. Facial masks during NIV are associated with deleterious consequences like gas leaks around the mask, skin breakdown (especially on the nasal bridge), claustrophobia and mask discomfort. In order to limit these side effects, a cephalic interface has been recently designed. Cephalic mask covers the whole anterior surface of the face and excessive mask fit pressure is therefore spread over a larger surface outside the nose area. However, this mask has a high volume that may interfere with NIV efficacy and may also induce claustrophobic sensations. The aim of this study is to compare the clinical efficacy and tolerance of a cephalic mask versus a conventional oronasal mask during AHRF.